how to change the color of an arrow

Question

It seems that this command can not change the color of an arrow ``` set arrow from 22,1590 to 523,1090 lw 3 back lc rgb "blue" filled ``` But I get ``` duplicated arguments in style specification ``` and it points to the beginning of `filled`. Why?

Accepted Answer

Usually the order of arguments doesn't matter in gnuplot, unfortunately in your case it does. Use

```
set arrow from 22,1590 to 523,1090 filled back lw 3 lc rgb "blue"
```

how to change the color of an arrow

Solution

Problem