[R] regarding 3d Bar Plot
murdoch at stats.uwo.ca
Wed Apr 25 13:12:57 CEST 2007
On 4/24/2007 9:38 AM, rolf at math.unb.ca wrote:
> gyadav at ccilindia.co.in wrote:
>> I have data in a two dimensional table. each row of the data adds
>> upto 100 ( hence they are percentages ). it can be interpreted as
>> like this A - I are the matches and P - X are the players. Thus
>> Player P scored 20% of the runs during this season in Match C, 60% in
>> Match D and remaining 20% in Match G.
>> I want to plot 3-d bar plot, where X axis have players, Y axis have
>> Matches and Z axis as the percentage(0 - 100%) Please help me in this
> Many years ago I picked up from the snews mailing list a
> suite of functions for plotting 2D barplots (barplots with 2D
> bases) written by a chap named Colin Goodall, from (at that
> time) the University of Bristol and/or from Penn State.
> I never actually did anything with this suite until
> recently. Seeing no replies to the enquiry about 3D
> histograms, I thought I'd try to get Goodal's code running
> in R to see if it might solve guarav's problem.
> The trouble is, all the guts of the procedure, *including*
> the plotting are done from within Fortran. The actual
> plotting seems to be done through a call to a subroutine
> ``segmtz'' which is a piece of Splus software that does not
> exist in R.
> Is there an equivalent subroutine in R that could be called?
> I dug around a bit but couldn't figure out what was going
> on. The function segments() simply calls
> I looked around a bit for corresponding C or Fortran code but
> obviously didn't know how to look properly.
> I think that the Fortran code could be translated into raw R
> and the call to segmtz changed to a call to segments() ---
> but this would seem to be a lot of work.
> Can anyone suggest a reasonably simple way of replacing the
> call to segmtz in the Fortran?
I don't know how to do what you want, but I'd suggest working in R code
rather than Fortran. I did write a hist3d function for the djmrgl
package (based on hist), mostly to show off the graphics, but haven't
found it useful enough to port to rgl. Here's a quick port, not good
enough to use, but maybe it will give you a starting point.
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