To reproduce: open /gretl/POE4data/nls_panel.gdt
start (interactive) R session in R:
head(gretldata)
hours, age, exper are lost
renamed variables schmours=hours schmage=age schmexper=exper
are read ok. Seems, there must be variables' counter and a warning message for such
situations. The predetermined names sets are different in different packages. So, one
doesn't know beforehand. Should be a warning.