3 messages · GreenBrower, Bert Gunter
It's important to identify the distribution of a dataset before do analysis and inference. Is there any method to identify the distribution of a given dataset? For example, I want to identify a dataset belong to normal of poisson distribution, how can I do that?
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Below. Brief summary is: You **need** to consult a statistician. You know far too little statistics to do statistical analysis on your own. -- Bert Bert Gunter Genentech Nonclinical Biostatistics 650-467-7374 -----Original Message----- From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of GreenBrower Sent: Monday, March 09, 2009 9:12 AM To: r-help at r-project.org Subject: [R] Is there any method to identify the distribution of a given dataset? It's important to identify the distribution of a dataset before do analysis and inference. -- Not necessarily. Indeed, often not. Is there any method to identify the distribution of a given dataset? -- Yes. It's discrete. The question you mean to ask is : How do I choose a suitable model for my data? For example, I want to identify a dataset belong to normal of poisson distribution, how can I do that? -- Whew! That you even ask this question is why you need to work with someone who knows more about statistics. No insult intended. It's kind of like me asking a biologist what's the difference between a mitochondrion and a nucleus. If I know so little about cell biology that I must ask, I probably need to work with someone more knowledgeable.
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Thanks for everybody, I feel shame after I posting the above message because I found there is a tutorial "Fitting Distributions with R" on http://cran.ii.uib.no/ It's seems not everybody check the dataset's distribution.
Below. Brief summary is: You **need** to consult a statistician. You know far too little statistics to do statistical analysis on your own. -- Bert Bert Gunter Genentech Nonclinical Biostatistics 650-467-7374 -----Original Message----- From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of GreenBrower Sent: Monday, March 09, 2009 9:12 AM To: r-help at r-project.org Subject: [R] Is there any method to identify the distribution of a given dataset? It's important to identify the distribution of a dataset before do analysis and inference. -- Not necessarily. Indeed, often not. Is there any method to identify the distribution of a given dataset? -- Yes. It's discrete. The question you mean to ask is : How do I choose a suitable model for my data? For example, I want to identify a dataset belong to normal of poisson distribution, how can I do that? -- Whew! That you even ask this question is why you need to work with someone who knows more about statistics. No insult intended. It's kind of like me asking a biologist what's the difference between a mitochondrion and a nucleus. If I know so little about cell biology that I must ask, I probably need to work with someone more knowledgeable. -- View this message in context: http://www.nabble.com/Is-there-any-method-to-identify-the-distribution-of-a- given-dataset--tp22413674p22413674.html Sent from the R help mailing list archive at Nabble.com.
______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
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