Gnuplot : Size of points

Question

I want to do a graph with different sizes of points on it. Is it possible to do it with only one file and to specify the size of each points in the file? Example of file: ``` 1 2 Size1 2 3 Size2 ``` I want to draw the point `(1,2)` with size `Size1` and the point `(2,3)` with size `Size2`. I know I can do this making different files (i.e. one file for each size of points) but it would really help me if I can do this with only one file.

Accepted Answer

Use `pointsize variable` in the plot command:

```
plot "data.txt" using 1:2:3 with points pointsize variable
```

For an example, see http://gnuplot.sourceforge.net/demo/pointsize.html

Gnuplot : Size of points

Solution

Problem