Combined Error
Contents |
Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads combined error calculation with us Cross Validated Questions Tags Users Badges Unanswered Ask Question _ Cross Validated is a combined standard error question and answer site for people interested in statistics, machine learning, data analysis, data mining, and data visualization. Join them; it only takes a minute: combined standard error formula Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top How to calculate the combined standard error of two models? up vote 2 down vote favorite Let's
Combining Error Ellipses
say you have a model that predicts annual GDP growth. It has a standard error of 2%. You have a second model that predicts annual stock returns. It has a standard error of 6%. What is the standard error when you estimate stock returns based on estimates of GDP growth? regression standard-error share|improve this question edited Oct 1 '12 at 22:07 whuber♦ 145k17281540 asked Oct 1 '12 at 21:29 Sympa 2,48211231 4 It is impossible to tell with the information given. Are other error propagation variables involved in the stock return model besides GDP growth? What are the range and distribution of GDP growth values? Does the stock return model accommodate a random component in its explanatory variable(s) or not? What are the estimated coefficients in the stock return model? –whuber♦ Oct 1 '12 at 21:38 This is a simple example to capture the relevant calculation. So, the stock market return model is based solely on GDP growth. The second and third questions are not directly relevant. This is a made up example to ask the question. See my answer below. Do you think it is right? –Sympa Oct 1 '12 at 22:01 1 As I interpret the question, I do not think your answer is correct. Suppose, say, the stock return regression estimates that the returns equal $-15 + 10\text{[GDP Growth]}$ (in %). Then a $\pm 2$% variation in GDP growth gets amplified to a $\pm 20$% variation in stock returns plus more uncertainty due to the standard error in the stock return regression. I hope this indicates why the questions I asked are not merely theoretical or nit-picking: they are crucial. –whuber♦ Oct 1 '12 at 22:05 whuber, see my edited answer I think it is getting closer if not downright correct. What do you think? –Sympa Oct 1 '12 at 22:30 1 Gaetan, are you talking about the standard errors (the square root of the estimated variance of a regression coefficient) or the RMSE (
installing and running ROOT here. Please post bug reports in Jira. Moderator: rootdev Post Reply Search Advanced search First unread post • 2 posts • combining standard errors of the mean Page 1 of 1 gregork Posts: 13 Joined: Wed May 11,
Combination Of Errors In Measurement
2011 16:04 THstack with combined error bars Quote Unread postby gregork » Thu Aug 18, 2011 11:37 Dear
Combination Of Errors In Physics
fellow root-ers,I have a THStack of TH1F that I draw stacked (think of summed background/signal predictions for comparison with data). Is there a way to draw "combined" error bands? When http://stats.stackexchange.com/questions/38423/how-to-calculate-the-combined-standard-error-of-two-models drawing with THStack.Draw("HIST E3") I get errors for each of the individua histograms in the stack, but I would like the combined error bars to be drawn for the top histogram (I guess I can manually add the errors, set them for the top histo and set to zero for the rest but would prefer a less "hacky" solution).Thanks!Cheers,Gregor Top https://root.cern.ch/phpBB3/viewtopic.php?t=13293 couet Posts: 7267 Joined: Tue Sep 02, 2003 9:32 Location: CERN Contact: Contact couet Website Re: THstack with combined error bars Quote Unread postby couet » Tue Aug 30, 2011 13:42 No, there is no way to combine the band. ou should do it an other way . May be adding the histograms ? Olivier Couet - CERN/EP/SFT Top Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending Post Reply 2 posts • Page 1 of 1 Return to “ROOT Support” Jump to General Announcements ROOT ROOT Support Stat and Math Tool Support PyROOT Support PROOF Support ROOT Documentation My ROOT App Development Ideas CINT CINT Support Cling Cling Support Non-ROOT Specific General Chat Test Me Who is online Users browsing this forum: stwalker and 0 guests Board index All times are UTC+02:00 Delete all board cookies The team Contact us Powered by phpBB Forum Software © phpBB LimitedSE Square Left by PhpBB3 BBCodes
& Bioassays Resources...DNA & RNABLAST (Basic Local Alignment Search Tool)BLAST (Stand-alone)E-UtilitiesGenBankGenBank: BankItGenBank: http://www.ncbi.nlm.nih.gov/pubmed/8751412 SequinGenBank: tbl2asnGenome WorkbenchInfluenza VirusNucleotide DatabasePopSetPrimer-BLASTProSplignReference Sequence (RefSeq)RefSeqGeneSequence http://reference.wolfram.com/applications/eda/ExperimentalErrorsAndErrorAnalysis.html Read Archive (SRA)SplignTrace ArchiveUniGeneAll DNA & RNA Resources...Data & SoftwareBLAST (Basic Local Alignment Search Tool)BLAST (Stand-alone)Cn3DConserved Domain Search Service (CD Search)E-UtilitiesGenBank: BankItGenBank: SequinGenBank: tbl2asnGenome ProtMapGenome WorkbenchPrimer-BLASTProSplignPubChem Structure SearchSNP Submission standard error ToolSplignVector Alignment Search Tool (VAST)All Data & Software Resources...Domains & StructuresBioSystemsCn3DConserved Domain Database (CDD)Conserved Domain Search Service (CD Search)Structure (Molecular Modeling Database)Vector Alignment Search Tool (VAST)All Domains & Structures Resources...Genes & ExpressionBioSystemsDatabase of Genotypes and Phenotypes combined standard error (dbGaP)E-UtilitiesGeneGene Expression Omnibus (GEO) Database Gene Expression Omnibus (GEO) DatasetsGene Expression Omnibus (GEO) ProfilesGenome WorkbenchHomoloGeneMap ViewerOnline Mendelian Inheritance in Man (OMIM)RefSeqGeneUniGeneAll Genes & Expression Resources...Genetics & MedicineBookshelfDatabase of Genotypes and Phenotypes (dbGaP)Genetic Testing RegistryInfluenza VirusMap ViewerOnline Mendelian Inheritance in Man (OMIM)PubMedPubMed Central (PMC)PubMed Clinical QueriesRefSeqGeneAll Genetics & Medicine Resources...Genomes & MapsDatabase of Genomic Structural Variation (dbVar)GenBank: tbl2asnGenomeGenome ProjectGenome ProtMapGenome WorkbenchInfluenza VirusMap ViewerNucleotide DatabasePopSetProSplignSequence Read Archive (SRA)SplignTrace ArchiveAll Genomes & Maps Resources...HomologyBLAST (Basic Local Alignment Search Tool)BLAST (Stand-alone)BLAST Link (BLink)Conserved Domain Database (CDD)Conserved Domain Search Service (CD Search)Genome ProtMapHomoloGeneProtein ClustersAll Homology Resources...LiteratureBookshelfE-UtilitiesJournals in NCBI DatabasesMeSH DatabaseNCBI HandbookNCBI Help ManualNCBI NewsPubMedPubMed Central (PMC)PubMed Clinical QueriesPubMed HealthAll Literature Resources..
Mathematica Wolfram|Alpha Appliance Enterprise Solutions Corporate Consulting Technical Services Wolfram|Alpha Business Solutions Products for Education Wolfram|Alpha Wolfram|Alpha Pro Problem Generator API Data Drop Mobile Apps Wolfram Cloud App Wolfram|Alpha for Mobile Wolfram|Alpha-Powered Apps Services Paid Project Support Training Summer Programs All Products & Services » Technologies Wolfram Language Revolutionary knowledge-based programming language. Wolfram Cloud Central infrastructure for Wolfram's cloud products & services. Wolfram Science Technology-enabling science of the computational universe. Computable Document Format Computation-powered interactive documents. Wolfram Engine Software engine implementing the Wolfram Language. Wolfram Natural Language Understanding System Knowledge-based broadly deployed natural language. Wolfram Data Framework Semantic framework for real-world data. Wolfram Universal Deployment System Instant deployment across cloud, desktop, mobile, and more. Wolfram Knowledgebase Curated computable knowledge powering Wolfram|Alpha. All Technologies » Solutions Engineering, R&D Aerospace & Defense Chemical Engineering Control Systems Electrical Engineering Image Processing Industrial Engineering Mechanical Engineering Operations Research More... Education All Solutions for Education Web & Software Authoring & Publishing Interface Development Software Engineering Web Development Finance, Statistics & Business Analysis Actuarial Sciences Bioinformatics Data Science Econometrics Financial Risk Management Statistics More... Sciences Astronomy Biology Chemistry More... Trends Internet of Things High-Performance Computing Hackathons All Solutions » Support & Learning Learning Wolfram Language Documentation Fast Introduction for Programmers Training Videos & Screencasts Wolfram Language Introductory Book Virtual Workshops Summer Programs B