Refimprove date July 2008 A Mendelianerror in the Genetics genetic analysis of a species, describes an allele in an individual which could not have been received from either of its biological parents by Mendelian inheritance . Inheritance is defined by a set of related individuals who have the same or similar phenotype s for a locus of a particular gene. A Mendelianerror means that the very structure of the inheritance as defined by analysis of the parental genes is incorrect one parent of one individual is not actually the parent indicated therefore the assumption is that the parental information is incorrect. ref cite web url http 209.85.165.104 search?q cache n4FmMX6xBZIJ www.inra.fr mia T degivry Schiex05a.pdf Mendelian error&hl en&ct clnk&cd 2&gl us title Mendelianerror detection in complex pedigree using weighted constraint satisfaction techniques publisher 209.85.165.104 accessdate 2008 07 13 last first ref The possible explanations are multiple and can be due to experimental genotyping errors or to the erroneous assignment of the individuals as relatives. Mendelianerror is established by demonstrating the existence of a trait which is inconsistent with every possible combination of genotype compatible with the individual. This method of determination requires pedigree checking, however, and establishing a contradiction between phenotype and pedigree is an NP complete problem. Genetic inconsistencies which do not correspond to this definition are Non Mendelian Errors. Statistical genetics analysis is used to detect these errors and to detect the possibility of the individual being linked to a specific disease linked to a single gene. Examples of such diseases in humans caused by single genes are Huntington s disease or Marfan syndrome . ref cite web url http bioinf.wehi.edu.au folders melanie statgenhowto.html title Statistical Genetics Analysis publisher bioinf.wehi.edu.au ... www.inra.fr mia T degivry Schiex05a.pdf Mendelianerror detection in complex pedigree using weighted ... more details
as well as those diseases inherited in a non Mendelian inheritance non Mendelian fashion. The Mendelian Inheritance in Man database is a catalog of, among other things, genes in which Mendelian traits cause disease. See also Dominance relationship Heritability List of Mendelian traits in humans Gregor Mendel Mendelian disease s monogenic disease Mendelianerror Non Mendelian inheritance Particulate ...for a non technical introduction to the topic Introduction to genetics Genetics2 Mendelian inheritance or Mendelian genetics or Mendelism is a scientific theory of how heredity hereditary characteristics are passed from parent organisms to their offspring it underlies much of genetics . This theoretical ... of Heredity or Mendelian inheritance . He described these principles in a two part paper, Experiments ... and statisticians such as R. A. Fisher showed that if multiple Mendelian factors were involved ... gamete to produce a diploid organism. An error in the number of chromosomes, such as those ... width 100 Image Mendelian inheritance.svg thumb center 230px Figure 1 Dominant and recessive phenotypes ... long blue boxes and 1 is white long green box . Image Mendelian inheritance 1 2 1.png thumb center ... of 46 in the case of humans is one reason for the Mendelian laws. The second most important reason ... of malaria resistance. The mechanism behind the Mendelian laws can make it possible for some offspring to carry the advantages without the disadvantages until further mutation s solve the problems. Mendelian trait A Mendelian trait is one that is controlled by a single locus genetics locus and shows a simple Mendelian inheritance pattern. In such cases, a mutation in a single gene can cause a disease ... 1989 title The Mendelian Revolution The Emergence of Hereditarian Concepts in Modern Science and Society ... The life of DNA publisher ANDRNA press Lysenkoism DEFAULTSORT Mendelian Inheritance Category Genetics ... Mendelian inheritance sk Mendelizmus sr sh Mendelovi zakoni th ... more details
In epidemiology , Mendelian randomization is a method of using measured variation in genes of known function to examine the causal effect of a modifiable exposure on disease in non experimental studies. The design was first described by Gray and Wheatley 1991 as a method for obtaining unbiased estimates of the effects of a putative casual variable without conducting a traditional randomised trial ref R. Gray and K. Wheatley. 1991 . How to avoid bias when comparing bone marrow transplantation with chemotherapy. Bone Marrow Transplant , 7 Suppl 3 , http dx.doi.org 9 12 ref . These authors also coined the term Mendelian randomization . Background spurious findings from observational epidemiology An important focus of observational epidemiology is the identification of modifiable causes of common diseases that are of public health interest. In order to have firm evidence that a recommended public ... by RCTs for ethical reasons. Implementing Mendelian randomization Mendelian randomization is a method ... studies. In this regard, Mendelian randomization can be thought of as a natural RCT. From a statistical ... of interest. Mendelian randomization relies on getting good estimates from genetic association ... 2003 Mendelian randomization can genetic epidemiology contribute to understanding environmental ... 05 67601 5 G. Davey Smith and S. Ebrahim 2005 What can Mendelian randomisation tell us about modifiable ... id Didelez2007 V. Didelez and N. Sheehan 2007 Mendelian randomization as an instrumental variable ... Conti 2004 Commentary The concept of Mendelian randomization. International Journal of Epidemiology 32 21 25 doi 10.1093 ije dyh048 cite External links http epidemiologic.blogspot.com 2006 03 mendelian randomization perfect causal.html Mendelian Randomization A Perfect Causal Epidemiologic Approach ... trial records 20th Century 1990s gray gray commentary.html Capitalising on Mendelian ... Mendelian randomisation Inferring causality in observational epidemiology Category Epidemiology ... more details
at Gare Montparnasse Montparnasse , France , 1895 The word error entails different meanings and usages relative to how it is conceptually applied. The concrete meaning of the Latin word error is wandering or straying . Unlike an illusion , an error or a mistake can sometimes be dispelled through knowledge ... moscow.jpg right thumbnail One error and its catastrophic results Napoleon s invasion of Russia Retreat ... between error and wiktionary mistake mistake as follows quote An error is a deviation from accuracy or correctness. A mistake is an error caused by a fault the fault being misjudgment, carelessness ... meant, that would be an error. The first time it would be an error. The second time it would be a mistake ... of this kind of error. More serious departures from social norms carry labels such as misbehavior .... See also Error analysis . Image PrintingError.jpg thumb 400px Herzliya Airport Israel Runway location ... See medical error for a description of error in medicine. Science and engineering Image TrafficSignIsraelError.JPG ... on the lower right corner. File General relativity FACT .jpg thumb left 180px Indication of an error ... , an errors and residuals in statistics error or residual is not a mistake but rather a difference ... correct value. See also Observational error . In science and engineering in general an error ... error is defined as the difference between a set point and the process value. An example ... by the difference the error between the thermostat setting and the sensed air temperature ... avoid the effects of error, whether Hanlon s Razor unintentional or not . Such errors in a system ... error , which includes cognitive bias . Human factors engineering is often applied to designs in an attempt to minimize this type of error by making systems more forgiving or error tolerant . In computational mechanics , when solving a system such as Ax b there is a distinction between the error ... the approximation error . Cybernetics The word cybernetics stems from the Ancient Greek Greek ... more details
Online Mendelian Inheritance in Animals OMIA is an online database of genes , genetic disorder inherited disorders and Trait biology traits in more than 135 animal species. It is modelled on, and is complementary to, OMIM Online Mendelian Inheritance in Man OMIM . It aims to provide a publicly accessible catalogue of all animal Phene phenes , excluding those in human and Mus musculus mouse , for which species specific resources are already available OMIM , Mouse Locus Catalogue MLC . Authored by Professor Frank Nicholas of the University of Sydney , with some contribution from colleagues, the database contains textual information and references as well as links to relevant PubMed and Gene records at the National Center for Biotechnology Information NCBI . OMIA is hosted by ANGIS , with an Entrez mirror located at the National Center for Biotechnology Information NCBI . Maintenance Currently the database is curated by its founder Professor Frank Nicholas. Planning is well advanced for enabling international experts to serve as electronic curators within their areas of expertise. Technical maintenance and improvement of OMIA http omia.angis.org.au acknowledgements.html has historically been conducted by a range of individuals , and is currently conducted by Jonathan Usmar, a Bioinformatician working for Sheep Genomics . References OMIA Online Mendelian Inheritance in Animals an enhanced platform and integration into the Entrez search interface at NCBI. Nucleic Acids Res. 2006 Jan 1 34 Database issue D599 601. DOI 10.1093 nar gkj152 PMID 16381939 Online Mendelian Inheritance in Animals OMIA a comparative knowledgebase of genetic disorders and other familial traits in non laboratory animals. Nucleic Acids Res. 2003 Jan 1 31 1 275 7. PMID 12520001 See also Medical classification OMIM Online Mendelian Inheritance in Man OMIM External links http omia.angis.org.au Online Mendelian Inheritance in Animals OMIA hosted by http www.angis.org.au ANGIS http www.ncbi.nlm.nih.gov entrez ... more details
Online Mendelian Inheritance in Man OMIM is a database that catalogues all the known disease s with a genetic disorder genetic component , and when possible links them to the relevant genes in the human genome and provides references for further research and tools for genomic analysis of a catalogued gene. ref name Hamosh cite pmid 15608251 ref OMIM is one of the databases housed in the U.S. National Center for Biotechnology Information NCBI and included in its search menus. ref name urlNational Center for Biotechnology Information cite web url http www.ncbi.nlm.nih.gov title National Center for Biotechnology Information format work accessdate 2011 04 20 ref Versions Mendelian Inheritance in Man was started in the early 1960s ref name urlOMIM Help cite web url http www.omim.org help about title OMIM Help format work accessdate 2011 04 20 ref and is available as a book currently in its 12th edition. ref cite book last McKusick first VA title Mendelian Inheritance in Man A Catalog of Human Genes and Genetic Disorders location Baltimore, Maryland publisher Johns Hopkins University Press year 1998 isbn 0 8018 5742 2 ref The online version, OMIM, has been available since 1987, ref cite pmid 8423603 ref moved to the World Wide Web by NCBI in 1995, ref name urlOMIM Help and in 2004 contained ... phenotype in humans, using Ensembl resources. Medical classification Mendelian inheritance Online Mendelian ... bg OMIM bs OMIM ca Mendelian Inheritance in Man cy Online Mendelian Inheritance in Man de Online Mendelian Inheritance in Man et Online Mendelian Inheritance in Man es Herencia Mendeliana en el Hombre fa fr H ritage mend lien chez l Homme hi hr OMIM is OMIM it Mendelian ... nl Mendelian Inheritance in Man no OMIM pl Mendelian Inheritance in Man pt Online Mendelian Inheritance in Man ru simple Online Mendelian Inheritance in Man sr sh OMIM fi Mendelian Inheritance in Man sv Mendelian Inheritance ... more details
Refimprove date September 2007 Image Hitchhiker s thumbs.jpg thumb Hitchhiker s thumbs In Mendelian inheritance , a child receiving a dominant allele from either parent will have the dominant form of the trait. Only those that received the recessive allele from Zygosity both parents present with the recessive phenotype . Those that receive a dominant allele from one parent and a recessive allele from the other parent will have the dominant form of the trait. Purely Mendelian traits are a tiny minority of all traits, since most phenotypic traits exhibit incomplete dominance , codominance , and quantitative trait locus contributions from many genes . The recessive phenotype may theoretically skip any number of generations, lying dormant in Zygosity heterozygous carrier individuals until they have children with someone who also has the recessive allele and both pass it on to their child. Examples These traits include Ability to taste phenylthiocarbamide dominant Ability to smell bitter almond like hydrogen cyanide Albinism recessive Brachydactyly shortness of fingers and toes Wet dominant or dry recessive earwax immunity to poison ivy dominant Thumb Variation Hitchiker s thumb recessive Traits previously believed to be Mendelian Some traits were previously believed to be Mendelian, but their inheritance is probably based on more complex genetic models Citation needed date August 2008 , possibly involving Polygenic more than one gene . These include ref http udel.edu mcdonald mythintro.html ref Eyecolor Hair color Morton s toe Tongue rolling Widow s peak allele Detached dominant or attached recessive earlobes See also Heritability Human genetic variation Human genetic clustering References references External links http www.ncbi.nlm.nih.gov omim OMIM Online Mendelian Inheritance in Man Category Human genetics it Lista di tratti mendeliani negli esseri umani uk ... more details
Evolution in Mendelian Populations is a lengthy 1931 scientific paper on evolution by the United States American population geneticist Sewall Wright . ref name Wright1931 cite journal author Wright S year 1931 title Evolution in Mendelian Populations journal Genetics journal Genetics volume 16 pages 97 159 pmid 17246615 issue 2 pmc 1201091 ref The paper was first published in Genetics journal Genetics volume 16, pages 97 126. In it, Wright outlines various concepts, including genetic drift , effective population size , and inbreeding . A contemporary review by R.A. Fisher can be found http digital.library.adelaide.edu.au coll special fisher natsel appenda.pdf here Overview Evolutionist such as Lamarck and those whom postulated the inheritance of acquired characteristics , see Theodor Eimer and Edward Drinker Cope were concerned with heredity and sought a link between one generation to the next. Lamarck had in mind that bodily responses from one generation should be passed along to future generations, Wright refers to this as direct evolution . ref name genetics.org http www.genetics.org cgi reprint 16 2 97 ref Sewall Wright expresses that the birth of genetics stems from Mendelian inheritance principles, see Gregor Mendel and so that any theory of evolution ref name genetics.org must also be based on Mendelian inheritance . See also Portal Evolutionary biology Evolutionary biology References Reflist External links http www.genetics.org cgi reprint 16 2 97 Reprint from Genetics http www.esp.org foundations genetics classical holdings w sw 31.pdf Reprint in Electronic Scholarly Publishing Category Evolutionary biology literature Category Academic journal articles Category 1931 in science Category 1931 works Category Works originally published in Genetics journal Evolution stub ... more details
accessdate 2007 10 16 work ref Non Mendelian inheritance plays a role in several disease processes. ref name pmid15358729 cite journal author Van Heyningen V, Yeyati PL title Mechanisms of non Mendelian ... inheritance is a form of non Mendelian inheritance first discovered by Carl Correns in 1908. ref cite ... of major forms of non Mendelian inheritance. Gene conversion is a reparation process in DNA Genetic ... non Mendelian ratios, and is frequently observed, e.g., in fungal crosses. ref Stacey K. A. 1994 ... Mendelian inheritance is known as infectious heredity. Infectious particles such as virus es may ... book last Russell first Peter J. title iGenetics A Mendelian Approach year 2006 publisher Pearson ... yet another example of non Mendelian inheritance. Just as in conventional inheritance, genes for a given ... ref Trinucleotide repeat disorders Trinucleotide repeat disorders also follow a non Mendelian pattern ... MainMenu.asp?CourseNum 2 non Mendelian inheritance at Duke University Mitochondrial diseases Trinucleotide repeat disorders Genomic imprinting DEFAULTSORT Non Mendelian Inheritance Category Genetics ... more details
Human Error may refer to Human Error artist born 1982 , Polish electronic musician Human Error album Human Error album , a 1987 album by Unseen Terror Human Error Star Trek Voyager Human Error Star Trek Voyager , an episode of Star Trek Voyager Human Error House Human Error House , a 2007 episode of the TV series House Human Error , a 2008 single by New Zealand band The Datsuns Human Error , a song by Combichrist from album The Joy of Gunz Human error Human error assessment and reduction technique HEART , a technique used in the field of human reliability Human Error punk rock band , a Swedish punk rock band disambiguation ... more details
wiktionary error An error is a mistake. Error may also refer to Error coin Error coram nobis , another type of writ to correct factual mistakes Error, a character from Zelda II The Adventure of Link Postage stamp error Appeal Writ of error , a writ historically issued for an appeal in common law cases Science Approximation error , error in scientific measurements Bias statistics Bias Error , in computer science, that part of the system state that is liable to lead to failure. Error message , a computer error message Errors and residuals in statistics Refractive error Standard error statistics Music Error band , an electro punk hardcore band from Los Angeles, California, US Errors band , a four piece post electro band from Glasgow, Scotland Sport Error baseball , a baseball concept See also Err disambiguation disambig ar ca Error cs Chyba de Error es Error fr Erreur gl Erro it Errore nl Error no Feil pl B d pt Erro desambigua o sl Napaka razlo itev fi Virhe sv Fel olika betydelser ... more details
There are many kinds of error in law. Reversible error can lead to a judgment being overturned on appeal. Harmless error is distinguished from plain error in that if error is preserved by the making of a timely objection law objection , the legal burden of proof burden of proof is on the appellee to show that the error was harmless, but if error was not preserved, the burden of proof is on the appellant to show that the error was plain. ref cite web url http www.law.cornell.edu rules frcrmp Rule52.htm title Federal Rules of Criminal Procedure Rule 52 LII 2009 ed. publisher Law.cornell.edu date accessdate 2010 05 16 ref See also Standard of review References reflist Category Law Category Legal terms Category Judicial review Category Appellate review law stub ... more details
In Programming language computer programming , error codes are enumerated messages that correspond to faults in a specific software application . They are typically used to identify faulty hardware , software , or incorrect user input in programming languages that lack exception handling , although they are sometimes also used in conjunction with exception handling. Error codes are not to be confused with return code s , although both are commonly used together in error handling. Some of the most severe error codes visible to users are the Stop error screen Blue Screen of Death codes provided by the Microsoft Windows Microsoft Windows operating systems . Error codes and exception handling Error codes are slowly disappearing from the programmer s environment as modern Object oriented programming object oriented programming languages replace them with Exception handling exceptions . Exceptions .... While it is considered poor practice in methodologies that use error codes and return codes to indicate failure, programmers often neglect to check return values for error conditions. That negligence can cause undesirable effects, as ignored error conditions often cause more severe problems later in the program. Exceptions are implemented in such a way as to separate the error handling code from the rest of the code. Separating the error handling code from the normal logic makes programs easier to write and understand, since one block of error handling code can service errors from any number of function calls. Exception handling also makes the code more readable than implementations with error ... for error conditions. See also Abort computing Aspect oriented programming Exit status Failure Static code analysis External links http www.barricane.com c error codes include errno Lists of Linux errno ... system error codes DEFAULTSORT Error Code Category Computer networking de Fehlercode es C digo de error ru sv Felkod ... more details
In numerical analysis , computational physics , and simulation , discretization error or truncation error is error resulting from the fact that a function mathematics function of a continuum set theory continuous variable is represented in the computer by a finite number of evaluations, for example, on a lattice model physics lattice . Discretization error can usually be reduced by using a more finely spaced lattice, with an increased Computational complexity theory computational cost . Examples Discretization error is the principal source of error in methods of finite difference s and the pseudo spectral method of computational physics. When we define the derivative of math , f x math as math f x lim h rightarrow0 frac f x h f x h math or math f x approx frac f x h f x h math , where math , h math is a finitely small number, the difference between the first formula and this approximation is known as discretization error. Related phenomena In signal processing , the analog of discretization is Sampling signal processing sampling , and results in no loss if the conditions of the sampling theorem are satisfied, otherwise the resulting error is called aliasing . Discretization error, which arises from finite resolution in the domain, should not be confused with quantization error , which is finite resolution in the range values , nor in round off error arising from floating point arithmetic. Discretization error would occur even if it were possible to represent the values exactly and use exact arithmetic it is the error from representing a function by its values at a discrete set of points, not an error in these values ref cite book first Nicholas last Higham title Accuracy and Stability of Numerical Algorithms 2 ed publisher SIAM year 2002 pages 5 ref . References Reflist See also Discretization Linear multistep method Quantization error DEFAULTSORT Discretization Error Category Numerical analysis eo Diskretiga eraro ... more details
Unreferenced date December 2009 In statistics , the term error arises in two ways. Firstly, it arises in the context of decision making , where the probability of error may be considered as being the probability of making a wrong decision and which would have a different value for each type of error. Secondly, it arises in the context of statistical modelling for example regression where the model s predicted value may be in error regarding the observed outcome and where the term probability of error may refer to the probabilities of various amounts of error occurring. Hypothesis testing In hypothesis testing in statistics , two types of error are distinguished. Type I and type II errors Type I error s which consist of rejecting a null hypothesis that is true this amounts to a false positive result. Type I and type II errors Type II error s which consist of failing to reject a null hypothesis that is false this amounts to a false negative result. The probability of error is similarly distinguished. For a Type I error, it is shown as alpha and is known as the size of the test and is 1 minus the Specificity tests specificity of the test. It should also be noted that alpha is sometimes referred to as the confidence of the test, or the level of significance LOS of the test. For a Type II error, it is shown as beta and is 1 minus the Statistical power power or 1 minus the sensitivity tests sensitivity of the test. Statistical and econometric modelling The fitting of many statistical model models in statistics and econometrics usually seeks to minimise the difference between observed and predicted or theoretical values. This difference is known as an error , though when observed it would be better described as a Errors and residuals in statistics residual . The error is taken to be a random variable and as such has a probability distribution . Thus distribution can be used ... Of Error Category Error Category Statistical terminology statistics stub de Irrtumswahrscheinlichkeit ... more details
Distinguish fatal system error In computing , a fatal error or fatal exception error is an error that causes a program to abort and may therefore return the user to the operating system . When this happens, data that the program was processing may be lost. A fatal error is usually distinguished from a fatal system error ref http www.webopedia.com TERM F fatal error.html webopedia.com ref ref http www.webopedia.com TERM S stop error.html webopedia.com ref colloquially referred to by the error message it produces as a Stop error screen blue screen of death . A fatal error occurs typically in any of the following cases An illegal instruction has been attempted Invalid data or Code computer programming code has been accessed An operation is not allowed in the current ring computer security ring or CPU modes CPU mode A program attempts to divide by zero . Only for integers with the IEEE floating point standard, this creates an infinity instead In some systems, such as Mac OS X and Microsoft Windows , a fatal error causes the operating system to create a data logging log entry or to save an image core dump of the process. References references External links http www.webopedia.com TERM F fatal exception error.html Fatal exception error Webopedia http support.microsoft.com ?kbid 150314 What Are Fatal Exception Errors Microsoft Knowledge Base Screens of death operating system stub Category Computer errors zh ... more details
Abbe error , named after Ernst Abbe , also called Abbe sine condition sine error , describes the magnification of angular error over distance. For example, when one measures a point that is 1 meter away at 45 degrees, an angular error of 1 degree corresponds to a positional error of over 1.745 cm, equivalent to a distance measurement error of 1.745 . In machine design, some components are particularly sensitive to angular errors. For example, if the shaft of a lathe is angled slightly, the part will have errors in diameter far down the part. Abbe error can be detrimental to dead reckoning . Formula math epsilon h sin theta math External links http www.newport.com servicesupport Tutorials default.aspx?id 143 http www.aerotech.com products engref strait.html Category Error Category Trigonometry engineering stub it Errore di Abbe pl Postulat Abbego ... more details
Orphan date April 2010 Invited error refers to a trial court s error law error against which a party cannot complain to an appellate court because the party encouraged or prompted the error by its own conduct during the trial. The original goal of the invited error doctrine was to prohibit a party from setting up an error at trial and then complaining of it on appeal. ref cite court litigants State v. Pam vol 101 court Wn.2d opinion 507 pinpoint 511 date 1984 ref In Pam, the State intentionally set up an error in order to create a test case for appeal. Since then, the doctrine has been applied even in cases where the error resulted from neither negligence nor bad faith. See, e.g., cite court litigants State v. Studd vol 137 court Wn.2d opinion 533 pinpoint 547 date 1999 ref See also Forfeiture and waiver References Reflist Category American legal terms Category Appellate review ... more details
Framing error can refer to the following Generally, a framing error is the result of starting to read a sequence of data at the wrong point. In serial communications , a framing error is the result of reading a string of symbols which are grouped in blocks at the wrong starting point. The symbols are bits and the blocks are bytes, ten bits in asynchronous transmission and eight in synchronous. A framing error in an asynchronous stream usually recovers quickly, but a framing error in a synchronous stream produces gibberish at the end of the packet. Framing errors can be detected with parity bit s. In genetics , a frameshift mutation framing error also called a frameshift or a frameshift mutation is a mutation that inserts or deletes a single nucleotide from a DNA sequence. Due to the triplet nature of gene expression , the insertion deletion can disrupt the grouping of the codons, resulting in a completely different translation from the original. disambiguation ... more details
Random errors are error s in measurement that lead to measurable values being inconsistent when repeated measures of a time invariant constant attribute or physical quantity quantity are taken. The word random indicates that they are inherently predictability unpredictable , and have null expected value , namely, they are scattered about the true value, and tend to have null arithmetic mean when a measurement is repeated several times with the same instrument. All measurements are prone to random error. Random error is caused by unpredictable fluctuations in the readings of a measurement apparatus, or in the experimenter s interpretation of the instrumental reading these fluctuations may be in part due to interference of the environment with the measurement process. The concept of random error is closely related to the concept of accuracy and precision precision . The higher the precision of a measurement instrument, the smaller the variability standard deviation of the fluctuations in its readings. Systematic versus random error Measurement errors can be split into two components random error and systematic error . ref name Taylor cite book title An Introduction to Error Analysis The Study of Uncertainties in Physical Measurements author John Robert Taylor url http books.google.com books?id giFQcZub80oC&pg PA94 page 94, 4.1 isbn 093570275X year 1999 publisher University Science Books ref Random error is always present in a measurement. It is caused by inherently unpredictable fluctuations in the readings of a measurement apparatus or in the experimenter s interpretation of the instrumental ... to the true value. If the cause of the systematic error can be identified, then it can usually ... zeroing of an instrument leading to a zero error is an example of systematic error in instrumentation. See also Errors and residuals in statistics Observational error References Reflist 1 Category Measurement ca Error aleatori de Zuf llige Abweichung es Error aleatorio lt Atsitiktin paklaida pl B d ... more details
Multiple issues howto September 2009 orphan September 2008 notability October 2008 In photography , a focus error is an aberration of the autofocus thus, the camera focuses a subject but the lens is not aligned correctly, causing a blurry image . In digital photography , the focus error is especially an error message on Fujifilm FinePix digital camera s, usually caused by dirt in the lens mechanism. To avoid any further damage, the camera electronics totally disables the autofocus system and refuses to take any still image. If out of warranty, the repair costs can easily exceed US 100. However, other brands suffer from similar faults, like the Canon E18 error or the Nikon Coolpix SYSTEM ERROR , and some users manage to bring their devices back to life by disassembling and cleaning the lens. External links http www.mathematik.uni marburg.de haim focuserr.htm Fujifilm FinePix A303 Focus Error Repair Guide DEFAULTSORT Focus Error Category Digital cameras Category Fujifilm cameras ... more details
For 2003 film Syntax Error film Unreferenced date December 2009 In computer science , a syntax error refers to an error in the Syntax programming languages syntax of a sequence of characters or Token parser tokens that is intended to be written in a particular programming language . For compiled language s syntax errors occur strictly at compiler compile time . A program will not compile until all syntax errors are corrected. For interpreted language s, however, not all syntax errors can be reliably detected until Run time program lifecycle phase run time , and it is not necessarily simple to differentiate a syntax error from a Logic error semantic error many don t try at all. A syntax error may also occur when an invalid equation is entered into a calculator . This can be caused, for instance, by opening brackets without closing them, or less commonly, entering several decimal point s in one number. In Java the following is a syntactically correct statement System.out.println Hello World while the following is not System.out.printlin Hello World A compiler will flag a syntax error when given source code that does not meet the requirements of the language grammar. Category Computer errors Category Parsing Category Programming language theory compu prog stub de Syntaxfehler ko is M lfr ivilla kk ms Ralat sintaks pl B d sk adniowy sv Syntax error ... more details
unreferenced date October 2011 Image Exponential.png thumb 300px right The graph illustrates how an exponential growth surpasses both linear and cubic growths. Notice how quickly and substantially an error can be compounded over time. Exponential error is an idea expressing how a very small error can compound itself over time. It can be characterized as the exponential growth of an error or the application of exponential growth in terms of an error. See also Exponential growth Computational complexity theory Scalability of algorithms Theory of computation Computer science Analysis of algorithms Math stub Category Exponentials ar ... more details
In finance , tracking error is a measure of how closely a portfolio follows the index to which it is benchmarked. The best measure is the root mean square of the difference between the portfolio and index returns. Many portfolios are managed to a benchmark, typically an index. Some portfolios are expected to replicate, before trading and other costs, the returns of an index exactly e.g., an index fund , while others are expected to actively manage the portfolio by deviating slightly from the index in order to generate active returns. Tracking error also called active risk is a measure of the deviation from the benchmark the aforementioned index fund would have a tracking error close to zero, while an actively managed portfolio would normally have a higher tracking error. Dividing portfolio active return by portfolio tracking error gives the information ratio , which is a risk adjusted performance measure. Definition If tracking error is measured historically, it is called realized or ex post tracking error. If a model is used to predict tracking error, it is called ex ante tracking error. Ex post tracking error is more useful for reporting performance, whereas ex ante tracking error is generally used by portfolio managers to control risk. Various types of ex ante tracking error models ... factor fixed income models. Formulas The ex post tracking error formula is the root mean square ... in terms of volatility of active returns makes sense, however, if the tracking error is to be used in an information ratio . Early papers ref e.g., Richard Roll, A Mean Variance Analysis of Tracking Error ... error volatility and are a possible source for the second conception of tracking error the volatility ... Error YouTube http monevator.com 2011 01 18 tracking error E2 80 93 a hidden cost Tracking error A hidden cost of passive investing http moneyterms.co.uk tracking error Tracking error Category Financial risk de Tracking Error fr Tracking error it Tracking error nl Tracking error sv Aktiv risk ... more details
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