gnuplot-info

[Gnuplot-info] floating-point variables

[HAMED A. <s.h...@gm...>]

i have written a script for creating images from multiple files.when i use
floating-point variabe in eagh imag gnuplot says "internal error : STRING
operator applied to non-STRING type" .when i  use integer numbers it works
correctly. please tell me how to use floating-point variables in gnuplot
4.2(2008).the fowllowing is a part of the script.when k is an integer it
works but if it is floating-point number it will not work. k is a variable
which changes for  each image.



filename="".i.".dat"
plotfile="".i.".gif"
set label "t=".k."" at 35,110
plot filename w l title "".i.".dat"
set term gif
set output plotfile
replot
i=i+1
k=k+deltat
if (i<=n) reread

Re: [Gnuplot-info] floating-point variables

[Thomas S. <t.s...@fz...>]

convert the number into a string using the 'sprintf' or 'gprintf' function.


HAMED AHMADI wrote:
> 
> i have written a script for creating images from multiple files.when i use
> floating-point variabe in eagh imag gnuplot says "internal error : STRING
> operator applied to non-STRING type" .when i  use integer numbers it works
> correctly. please tell me how to use floating-point variables in gnuplot
> 4.2(2008).the fowllowing is a part of the script.when k is an integer it
> works but if it is floating-point number it will not work. k is a variable
> which changes for  each image.
> 
> 
> 
> filename="".i.".dat"
> plotfile="".i.".gif"
> set label "t=".k."" at 35,110
> plot filename w l title "".i.".dat"
> set term gif
> set output plotfile
> replot
> i=i+1
> k=k+deltat
> if (i<=n) reread
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