search for: do_xspline

...gt; xspline(c(0,1,0), c(1,0,1), draw=FALSE) Error in xspline(c(0, 1, 0), c(1, 0, 1), draw = FALSE) : plot.new has not been called yet R graphics internal are black magic to me. However, it seems that the error messge comes from function GCheckState(DevDesc *dd) in graphics.c, which is called by do_xspline(SEXP call, SEXP op, SEXP args, SEXP env) in plot.c even when xspline was called with draw = FALSE (and even before getting the argument draw into do_xspline). It seems that graphics device is needed somewhere even with draw = FALSE, since moving the GCheckState() test after findig the value draw,...

...=20 > Error in xspline(c(0, 1, 0), c(1, 0, 1), draw =3D FALSE) :=20 > plot.new has not been called yet > > R graphics internal are black magic to me. However, it seems that the e= rror > messge comes from function GCheckState(DevDesc *dd) in graphics.c, whic= h is > called by do_xspline(SEXP call, SEXP op, SEXP args, SEXP env) in plot.c= even > when xspline was called with draw =3D FALSE (and even before getting th= e argument > draw into do_xspline). It seems that graphics device is needed somewher= e even > with draw =3D FALSE, since moving the GCheckState() test afte...