Re: grid minor

[<pl...@pi...>]

On Thu, 21 Aug 2008 15:45:39 +0200, Theo Hopman  
<th...@ph...> wrote:

>  Everything you ask for already exists in gnuplot 4.2. For example, `set  
> grid mxtics` sets a grid at minor x tics. See `help grid` for details on  
> how to set the linetype.
>


Indeed, many thanks. I had looked at that help entry but must have been  
confused by the number of brackets and terse syntax.

In fact, looking at it, I am not sure whether it is accurate anyway. Take  
the first term of the first line:

        set grid {{no}{m}xtics}

{m} should indicate xtics AND/OR mxtics  but {no} means xtics OR noxtics  
since both would be a contradiction. So either the syntax definition is  
ambiguous or it is wrong. {no} and {m} cannot have the same meaning.

It seems that being too concise in representing the multitude of possible  
options has led to inaccuracy. It seems this should read:

        set grid {{no}xtics} {{no}mxtics}


I also get an error when I try to define minor grid line style without  
major line style.

set style line 11 lw 0.25 lc rgb "#C0C0C0"
set grid mxtics mytics , ls 11


This gets in invalid expression on the comma. Now unless I have had a  
mental stack overflow condition trying to parse all those braces, that  
should be correct usage.

Am I misreading this or is that also an error in the sytax definition?

TIA. , Peter.


BTW, I'm using recent CVS gnuplot.