st: Problems with twoway contour

[John Samuel <johnpetesamuel@gmail.com>]

Dear Statalist,

I am having some problems with the twoway contour command.

The command:
twoway contour z x y, ccuts(`pct_10' `pct_25' `pct_50' `pct_60'
`pct_80' `pct_90' `pct_95' `pct_99' `pct_99half') scolor(white)
ecolor(black)	crule(linear) title("Contour plot", size(medium))
subtitle("`year'", size(small)) ytitle("bla") xtitle("bla") zlabel(1
"10" 2 "25" 3 "50" 4 "60" 5 "80" 6 "90" 7 "95" 8 "99" 9 "99.5")
ztitle("Percentiles") scheme(personal)

I get the following error message:
       _rbf_tps_setup():  3900  unable to allocate real <tmp>[56554,56554]
          _rbf_tps_wrk():     -  function returned error
              _rbf_tps():     -  function returned error
                  _rbf():     -  function returned error
        _contour_setup():     -  function returned error
       _contour_filled():     -  function returned error
                 <istmt>:     -  function returned error

It does save a graph, but it doesn’t contain anything (just an empty grid).

I think this problem might be related to Stata running out of memory.
Do you have any advice on how to solve it? The data is quite small
(only 96M). I am running Stata SE 12.1 on a 64-bit Windows 7 machine
with 12GB RAM.

Thank you very much for your help.

Best
John

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