Re: 'help matrix' -- Re: [Bug #1264105] In currrent CVS version plotting matrix is broken

[Petr M. <mi...@ph...>]

>> I would keep the x, y and z for both plot and splot cases, and add that
>> the default using for plot is
>>     plot 'a.dat' matrix using 1:3
>> and not using 1:2 which makes no good sense for matrices.
>
> Sorry, I must be really dense today.
> I am just not understanding your way of naming things.
>
> In a 2D plot we are plotting y = f(x).
> x is taken from the first using spec.
> y is taken from the second using spec.
> There is no z.
>
> So when you say   "plot 'a.dat' matrix using 1:3"
> you are asking for x from column 1 and y from column 3.
> How can it be correct to document column 3 as being z
> in this case?

I consider matrix as a 3D object, and I draw its section in 2D.

See 'help binary general' and 'help binary general examples' -- it's the 
same thing, just binary not ascii, and also plot as (x,y,z) via "plot" in 
2D.

> Maybe we need to write totally separate sections for the 2D case
> and the 3D case.

I tried that in my proposal text for the two help sections, with examples.

> section. I'll hand it back to you.
> Or maybe somebody else wants to take a stab at it?

At the moment I stay with the proposed text.

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