[Gnuplot-bugs] strptime getting called on comment lines.

[<pl...@pi...>]

Hi,

I have just tracked some spurious results down to the fact that plot see=
ms  =

to be processing comment lines or rather it is getting called once and  =

once only on a file that has only comment lines (and no blank lines).

add_aug(x,y)=3Dassign("area",((started!=3D0) )? 0.0*assign("prev_y",222)=
 :   =

0.0*( assign("started",1) + assign("prev_y",111) )   );

plot  datafile   using  =

1:(add_aug(strptime("%H:%M",stringcolumn(1))/3600,P( Th4($3-2.0)   =

-(Th7($5)-0.52) ))/1) axes x1y2  with lines s f t "aug/10 Wh" \




prev_y is coming out with a value of 111 inidicating that plot called th=
is  =

function once.

I'm not sure why it is getting called but x=3D0 which is presumably strp=
time  =

failing to interpret one of my comment lines and y gets a large positive=
  =

value which is likely the result of feeding zero to my Th functions.

In short it is calling add_aug() with spurious data even though there is=
  =

no data lines in the input file.


suggestions please.

TIA.