X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=doc%2Fstatistics.texi;h=1e24c173516bcfa62ebb8d8af0ad432e3d1d9a34;hb=e17bf22963466952e4333a9f9994ebad4ca2f5e8;hp=d333de1db24acf10050b413ff000fc063f31f97c;hpb=37ff86424a5aa6c4c22a0fd4d8c59d7ce28bc2bf;p=pspp diff --git a/doc/statistics.texi b/doc/statistics.texi index d333de1db2..1e24c17351 100644 --- a/doc/statistics.texi +++ b/doc/statistics.texi @@ -709,6 +709,8 @@ FACTOR VARIABLES=@var{var_list} [ /METHOD = @{CORRELATION, COVARIANCE@} ] + [ /ANALYSIS=@var{var_list} ] + [ /EXTRACTION=@{PC, PAF@}] [ /ROTATION=@{VARIMAX, EQUAMAX, QUARTIMAX, PROMAX[(@var{k})], NOROTATE@}] @@ -727,7 +729,10 @@ FACTOR VARIABLES=@var{var_list} The @cmd{FACTOR} command performs Factor Analysis or Principal Axis Factoring on a dataset. It may be used to find common factors in the data or for data reduction purposes. -The @subcmd{VARIABLES} subcommand is required. It lists the variables which are to partake in the analysis. +The @subcmd{VARIABLES} subcommand is required. It lists the variables +which are to partake in the analysis. (The @subcmd{ANALYSIS} +subcommand may optionally further limit the variables that +participate; it is not useful and implemented only for compatibility.) The @subcmd{/EXTRACTION} subcommand is used to specify the way in which factors (components) are extracted from the data. If @subcmd{PC} is specified, then Principal Components Analysis is used.