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

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

On Sat, 19 May 2007 17:08:17 +0200, <pl...@pi...> wrote:

> Hi,
>
> I have just tracked some spurious results down to the fact that plot  =

> seems
> 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",22=
2) :
> 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 =
 =

> this
> function once.
>
> I'm not sure why it is getting called but x=3D0 which is presumably  =

> strptime
> failing to interpret one of my comment lines and y gets a large positi=
ve
> 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.
>
>

oops , my bad.

One comment line had lost it's # .

Sorry for the misleading post.

regards.