X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=doc%2Fstatistics.texi;h=177af4cbaadbf33e82a39a897a4b0d471742cd97;hb=d8ab9ce7655dc78b7ef2f7161af43e0cff4276a7;hp=fd1f7214668d91603c747f94d6f3da2d9c9ffab7;hpb=f229deb221f9de45a7368070e188c53eba0662b9;p=pspp diff --git a/doc/statistics.texi b/doc/statistics.texi index fd1f721466..177af4cbaa 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 @@ -547,7 +553,9 @@ FACTOR VARIABLES=var_list [ /EXTRACTION=@{PC, PAF@}] - [ /PRINT=[INITIAL] [EXTRACTION] [UNIVARIATE] [CORRELATION] [COVARIANCE] [DET] [SIG] [ALL] [DEFAULT] ] + [ /ROTATION=@{VARIMAX, EQUAMAX, QUARTIMAX, NOROTATE@}] + + [ /PRINT=[INITIAL] [EXTRACTION] [ROTATION] [UNIVARIATE] [CORRELATION] [COVARIANCE] [DET] [SIG] [ALL] [DEFAULT] ] [ /PLOT=[EIGEN] ] @@ -567,6 +575,11 @@ The /EXTRACTION subcommand is used to specify the way in which factors (componen If PC is specified, then Principal Components Analysis is used. If PAF is specified, then Principal Axis Factoring is used. By default Principal Components Analysis will be used. +The /ROTATION subcommand is used to specify the method by which the extracted solution will be rotated. +Three methods are available: VARIMAX (which is the default), EQUAMAX, and QUARTIMAX. +If don't want any rotation to be performed, the word NOROTATE will prevent the command from performing any +rotation on the data. Oblique rotations are not supported. + The /METHOD subcommand should be used to determine whether the covariance matrix or the correlation matrix of the data is to be analysed. By default, the correlation matrix is analysed. @@ -579,6 +592,8 @@ The /PRINT subcommand may be used to select which features of the analysis are r Initial communalities and eigenvalues are printed. @item EXTRACTION Extracted communalities and eigenvalues are printed. +@item ROTATION + Rotated communalities and eigenvalues are printed. @item CORRELATION The correlation matrix is printed. @item COVARIANCE