The R package boot allows a user to easily generate bootstrap samples of virtually any statistic that they can calculate in R.  From these samples, you can generate estimates of…
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  Types of weights There are several types of weights that you might find or create in a data set. probability weights – Perhaps the most common type of weights are…
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The following table shows general guidelines for choosing a statistical analysis. We emphasize that these are general guidelines and should not be construed as hard and fast rules. Usually your…
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Number of Dependent Variables Nature of  Independent Variables Nature of Dependent Variable(s) Test(s) How to SAS How to Stata How to SPSS 1  0 IVs (1 population) interval & normal…
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  How do I convert among SAS, Stata and SPSS files?   On this page, conversions of different data formats are discussed.  In general, the strategies should work with SAS…
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How do I use a SAS data file in Stata?   1. Using SAS software SAS’s proc export can be used to convert a SAS data file to Stata format as shown below.  By…
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1. Using Stata 16 or higher Stata 16 will read SPSS data files. import spss using “D:\data\hsbdemo.sav”, case(lower)   2. Using -usespss- The user-written Stata ado-file usespss can be used…
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Excel is not a statistical package; however, Excel is often the software of choice for inputting data. So, even though we do not advocate its use for statistical analysis, here are…
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One use of effect-size is as a standardized index that is independent of sample size and quantifies the magnitude of the difference between populations or the relationship between explanatory and…
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This page shows the survey setups for common public use data sets in various statistical packages, including SUDAAN, Stata and SAS. If you are using an earlier version of one…
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