Updated title to more accurately describe what's left to do.

I'm reopening this item as a reminder ...

PSPP has a number of commands which have the capability to generate graphics.  However, in the GUI, there are no controls to generate the relevant subcommands.  This was a deliberate omission, since in the past the GUI was not capable of displaying graphics.  However that has now changed, so the time seems right to add these controls.

Commands affected include:

FREQUENCIES /HISTOGRAM
FREQUENCIES /PIECHART
EXAMINE /PLOT={BOXPLOT, NPPLOT, HISTOGRAM}
FACTOR /PLOT=EIGEN.

It would be really useful if the GUI could output histograms of data in the appropriate functions (have a Graph menu where one can take a list of weighted variables and output them as a histogram, for example)...amongst other graphic functions similar to SPSS.