[Gnuplot-info] Changing the line width

[Boris T. <th...@ig...>]

Hello,
I am plotting some data with gnuplot the following way:
gnuplot> plot 'file.txt' using 1:2 with line 1

I'd like to change the style of the line, but I don't succeed. It seems 
that the variable "linewidth" or "lw" does not exist for the lines when I 
am plotting data.
I noticed that it was working for curves, for example in the following 
example:
gnuplot> plot sin(x) with lines lw 3

Is there a way to change the line width of such lines?

Thank's a lot,
best regards.
Boris.