Interpolating graph in gnuplot

Question

Im trying to plot a graph in gnu plot using this command

    plot 'temp.txt' using 1:3 title 'humidity' with lines smooth csplines,

   'temp.txt' using 1:2 title'temprature' with lines smooth splines

but the curves are not smooth enough as you can see in the image

I want the curves to be more smooth by interpolating the existing data.

score 1 · Answer 1 · answered Sep 05 '16 at 22:35

1

"smooth kdensity" will get you smoother curves, but it won't be from interpolation. The curves will not go exactly through any of the points.

answered Sep 05 '16 at 22:35

Ethan

score 0 · Answer 2 · answered Aug 11 '16 at 11:09

0

Your data sampling is probably higher than your csplines sampling. Try set samples 1000 before the plot command.

answered Aug 11 '16 at 11:09

Miguel

I did what you said but it doesn't make the graph smooth – Khaadija Aug 13 '16 at 17:55
1

@Khaadija Post your data file somewhere so that I can test it. – Miguel Aug 13 '16 at 18:51

2 Answers2