X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=doc%2Fstatistics.texi;h=c475f306b3644431b9e248e629b6e04b8b550b3b;hb=0d323042aa7503f67186c88a5d41d1517ba9926c;hp=81e16698c85c6cd63242c3849bc35fe5db6c828d;hpb=18ef561271ad1b619f62d994e3dc2286958532f1;p=pspp diff --git a/doc/statistics.texi b/doc/statistics.texi index 81e16698c8..c475f306b3 100644 --- a/doc/statistics.texi +++ b/doc/statistics.texi @@ -183,6 +183,7 @@ The NTILES subcommand causes the percentiles to be reported at the boundaries of the data set divided into the specified number of ranges. For instance, @code{/NTILES=4} would cause quartiles to be reported. +@cindex histogram The HISTOGRAM subcommand causes the output to include a histogram for each specified numeric variable. The X axis by default ranges from the minimum to the maximum value observed in the data, but the MINIMUM @@ -190,6 +191,7 @@ and MAXIMUM keywords can set an explicit range. Specify NORMAL to superimpose a normal curve on the histogram. Histograms are not created for string variables. +@cindex piechart The PIECHART adds a pie chart for each variable to the data. Each slice represents one value, with the size of the slice proportional to the value's frequency. By default, all non-missing values are given @@ -243,7 +245,11 @@ values of the dependent variable. A number in parentheses determines how many upper and lower extremes to show. The default number is 5. +@cindex boxplot +@cindex histogram +@cindex npplot The PLOT subcommand specifies which plots are to be produced if any. +Available plots are HISTOGRAM, NPPLOT and BOXPLOT. The COMPARE subcommand is only relevant if producing boxplots, and it is only useful there is more than one dependent variable and at least one factor. If @@ -958,7 +964,7 @@ variables factored by a single independent variable. It is used to compare the means of a population divided into more than two groups. -The variables to be analysed should be given in the @code{VARIABLES} +The dependent variables to be analysed should be given in the @code{VARIABLES} subcommand. The list of variables must be followed by the @code{BY} keyword and the name of the independent (or factor) variable. @@ -984,6 +990,16 @@ If the total sum of the coefficients are not zero, then PSPP will display a warning, but will proceed with the analysis. The @code{CONTRAST} subcommand may be given up to 10 times in order to specify different contrast tests. +The @code{MISSING} subcommand defines how missing values are handled. +If LISTWISE is specified then cases which have missing values for +the independent variable or any dependent variable will be ignored. +If ANALYSIS is specified, then cases will be ignored if the independent +variable is missing or if the dependent variable currently being +analysed is missing. The default is ANALYSIS. +A setting of EXCLUDE means that variables whose values are +user-missing are to be excluded from the analysis. A setting of +INCLUDE means they are to be included. The default is EXCLUDE. + @node RANK @comment node-name, next, previous, up