st_data(): 3900 unable to allocate real <tmp>[3282835,6]
ASREGNW(): - function returned error
<istmt>: - function returned error
[M-2] error . . . . . . . . . . . . . . . . . . . . . . . . Return code 3900
out of memory
Mata is out of memory; the operating system refused to supply
what Mata requested. There is no Mata or Stata setting that
affects this, and so nothing in Mata or Stata to reset in order
to get more memory. You must take up the problem with your
operating system.