Help With Factor Analysis

[Ashley Johnson]

Hi, I am pretty new to Stata. I have a set of variables in a dataset that are likely related and can be combined into a single variable, but when I try to do a factor analysis I get an error symbol (below). Any help is appreciated!

summarize AdmEffic censusfreq v2clrspct infcap irai_qbfm irai_qpa weberian wbstat

Variable | Obs Mean Std. Dev. Min Max
-------------+---------------------------------------------------------
AdmEffic | 199 3.527638 2.189966 0 8
censusfreq | 8,784 .9310619 .4095307 .1248581 2.391304
v2clrspct | 8,592 .1808991 1.493958 -3.685 4.455
infcap | 3,591 .6217591 .146393 0 1
irai_qbfm | 779 3.491656 1.194835 0 6
-------------+---------------------------------------------------------
irai_qpa | 779 1.919127 1.007303 0 4
weberian | 714 7.044118 3.139563 1 13.5
wbstat | 1,569 .6674711 .1638985 .1666667 .9888889

. factor AdmEffic censusfreq v2clrspct infcap irai_qbfm irai_qpa weberian wbstat

no observations
r(2000);

[Ashley Johnson]

Note: I get the same issue with corr and polychoric commands, and I can't seem to get univar to download.

[Joseph Coveney]

Remove AdmEffic from the factor model. See how many observations you have. If yet not enough, then omit weberian. Rinse, repeat, with the two irai_q* variables and wbstat, in turn.

[Dirk Enzmann]

Investigate the pattern of missings using -misstable-, for example

misstable pattern AdmEffic censusfreq v2clrspct infcap irai_qbfm irai_qpa weberian wbstat, freq

or if there are too many cases use

misstable sum AdmEffic censusfreq v2clrspct infcap irai_qbfm irai_qpa weberian wbstat