Change "Zero" gridline color

[HeinrichH]

The winter is started in the Netherlands and also the temperatures in Portugal are going down, 0,7 below zero at 15-12-2009!!

Somebody now to change the color of the zero point line to another color?

[jubi]

What's about the following ?

set xzeroaxis lt 6 |

It creates a horizontal line at 0°C

Uwe

[skyewright]

set xzeroaxis lt 6 |

Hey, that's great! Thanks. :)

I wanted the same for the right hand side - a quick google found that that is x2, so I'm now using

set x2zeroaxis lt 2 |

(lt 2 seems to give a green line, rather than the red of lt 6).

[HeinrichH]

Thanks Jubi and Skyewright, sometimes solutions are simple...
Even in Portugal it's freezing for a short period of the day so it's good to see with the changed zero axis

[gust]

How to have red positive température values and blue negative temperature values in the same graph please?