Well, that's certainly doable. But, a few hours ago, I did not know
enough about how plot was implemented to suggest an approach there.

That said, I think that adding:

 if. (<'density') e. types do.
  'xmin xmax ymin ymax'=. (xmin,xmax,ymin,ymax)+4$0.5*_1 1
end.

just before the final line of getdatarange in jzplot would do the trick.

(That said, currently I do not know which github repository contains
jzplot.ijs.)

-- 
Raul

On Fri, Nov 4, 2022 at 4:44 PM Jan-Pieter Jacobs
<janpieter.jac...@gmail.com> wrote:
>
> Well, the axes are useful, the same way they are useful for e.g. a bar
> plot: one would like to see which fields are in which rows and columns
> (without having to count them).
> My use case is showing a similarity matrix, in which I want to see which
> item in the rows corresponds with which one in the columns.
>
> I don't think the axes make sense at all (certainly not the non-integer
> intermediates like 2.5), they should just list the cell indices, centred on
> the cells.
>
> I can't personally see a reason why it wouldn't be better to centre the
> ticks on the cells.
>
> Jan-Pieter
>
> On Fri, 4 Nov 2022, 14:57 Raul Miller, <rauldmil...@gmail.com> wrote:
>
> > Hmm... I think you're asking for the x and y axis labels for that plot
> > to range from  0 to 5. This would result in blocks centered over the
> > integers corresponding to the numbered values.
> >
> > But the axes don't carry much (if any) information here. So maybe it
> > would be better to use
> >
> >    'density;noaxes' plot i.5 5
> >
> > ?
> >
> > --
> > Raul
> >
> > On Fri, Nov 4, 2022 at 4:36 AM Jan-Pieter Jacobs
> > <janpieter.jac...@gmail.com> wrote:
> > >
> > > Hi all,
> > >
> > > I noticed the tick marks in the plot addon's density plot are misaligned,
> > > e.g.
> > >
> > > load 'plot'
> > > 'density' plot i. 5 5
> > >
> > > shows 5 coloured cells, and axes range from 0 to 4. But the corresponding
> > > tick marks are aligned to the left of the cell in column 0, and the right
> > > of the cell in column 4.
> > >
> > > I would find it more clear to have the ticks centred on the cells for all
> > > rows and columns.
> > >
> > > What do you think? Or am I missing some useful case of the current
> > > behaviour?
> > >
> > > Thanks,
> > >
> > > Jan-Pieter
> > > ----------------------------------------------------------------------
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