Frequencies can also produce histograms, pie charts, and frequency tables.Īgain, if you’re familiar with SPSS you’ll feel right at home with PSPP. For example, Frequencies can produce mean, standard deviation, minimum, maximum, standard error, variance, skewness, standard error of the skewness, range, mode, standard error of the kurtosis, median, sum.

The analyses in PSPP are very similar to SPSS. These include frequencies, descriptives, explore, crosstabs, one sample t-test, independent samples t-test, paired samples t-test, one way ANOVA, bivariate correlation, K-means cluster, factor analysis, reliability, linear regression, chi square, binomial, and ROC curve. PSPP is capable of many of the same data analyses as SPSS. These allow the user to select the variables to change and how to recode those variables. This opens the familiar Recode into Same Variables and Old and New Values windows. For example, if you want to recode data, simply click Transform, then Recode into Same Variables… All the functions of PSPP are easy to find. The menus include File, Edit, View, Data, Transform, Analyze, Utilities, Windows, and Help. Familiar Menus and FunctionsĪnother great feature of PSPP is that the menus are very similar to those in SPSS. All the familiar variable characteristics from SPSS are present, including variable name, type, width, decimals, label, values, missing, column, align, and measure. In the Variable View tab of PSPP, each row represents a variable. In the Data View tab each row represents a case (for example, a test subject). Like SPSS, PSPP has two tabs, one tab listing variables and the other tab showing data. One of the best aspects of PSPP is that if you know SPSS you already know PSPP. It’s like an SPSS free download! Although some users may prefer the command-line syntax, most will take advantage of PSPP’s simple, easy to use graphical user interface (GUI). Gnu’s PSPP is an free, open-source clone of IBM’s SPSS.

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