Earlier today many of the suggestions in this thread worked quite well. However, now all of them now do not work and I get this message. What have I changed that would cause that error?
|domain error: script | CONSOLEOUTPUT=:(( Linda -----Original Message----- From: programming-boun...@jsoftware.com [mailto:programming-boun...@jsoftware.com] On Behalf Of Graham Parkhouse Sent: Friday, April 20, 2012 6:20 PM To: programming@jsoftware.com Subject: Re: [Jprogramming] Colouring dots in plot Ric, thank you for this. Defining a palette in the _z_ locale is just the ticket. I shall explore colorxy_jzplot_. There are no obstacles in my way now to some very useful data visualisation. J602 has worked a treat, allowing me to develop software which analyses and reports on 80 MB sets of data. My client wanted me to do it in Python but content themselves that they can rewrite it in Python if they need to since I have described the analysis procedure in some detail. The success of the project is giving me a buzz. Many thanks for your help. Graham On Sat, 21 Apr 2012 03:35:42 +1200 Ric Sherlock <tikk...@gmail.com> wrote: > Subject: Re: [Jprogramming] Colouring dots in plot > To: Programming forum <programming@jsoftware.com> > Message-ID: > <CAOoUVu8A=5MH5AvDc8iN94Qevsovr-FxTOrkK- > qyhhjjrlv...@mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > Graham, > I think the error you are getting is because the noun defining the > list of itemcolors to use isn't found. It seems that the name of the > noun must be all uppercase, and must be in the copath of the jzplot > locale so it is found while the plot is being constructed. The > following example should work in J6, J7 (both Gtk IDE and JHS). If you > are using JHS, try copying it into the scratch (action|scratch...) and > then run it from there (action|scratch) > > require 'plot numeric' > hue=: 4 : 0 > y=. y*<:#x > b=. x {~ <.y > t=. x {~ >.y > k=. y-<.y > (t*k)+b*-.k > ) > > noise=: 100 ((?@$ >:@+:) + -@]) 7 NB. random noise > dat=: (noise + i.) 100 NB. data to plot > datgrp=: <.@(%&10) dat NB. assign groups for dat > NB. build a list of colors of about the right number (y) NB. from red > to yellow. Name must be uppercase and NB. in the copath of jzplot > locale (e.g. the z locale) > MYCLR_z_=: (255 0 0,:255 255 0) hue int01 #~.datgrp > > pd 'reset' > pd 'type point' > pd 'itemcolor myclr' NB. myclr will be forced to uppercase pd > 'pensize 4' > NB. box into groups with x coordinate and plot them NB. in order of > magnitude so the color progression works pd@> ;/@|: &.> (~.datgrp) > /:~ (datgrp </. ] ,.~ i.@#) dat pd 'show' > > > On Fri, Apr 20, 2012 at 10:12 PM, Graham Parkhouse > <graham.parkho...@ntlworld.com> wrote: > > I am producing 2D dot scatter plots of (x,y) data in monochrome. How > can I > > increase the information by colouring the dots according to a colour > band > > indexed by a variable z? > > > > A clue is given in the definition of the Surface of Revolution in > > the > 3D > > examples, i.e. > > > > X=. steps _2 1.9 50 > > dat=. cutxyz 40 surfacerev (2+*:X);X > > CLR=: (RED,:YELLOW) hue _8}.8}.int01 32 > > > > pd 'backcolor teal;color CLR' > > pd 'edgecolor 64 64 64' > > pd 'type surface' > > pd dat > > > > Developing the ideas shown above, I have tried: > > > > ? RED=: 255 0 0 > > ? YELLOW=: 255 255 0 > > ? [CLR=: (RED,:YELLOW) hue 0.1*i.11 > > 255 ? ? 0 0 > > 255 ?25.5 0 > > 255 ? ?51 0 > > 255 ?76.5 0 > > 255 ? 102 0 > > 255 127.5 0 > > 255 ? 153 0 > > 255 178.5 0 > > 255 ? 204 0 > > 255 229.5 0 > > 255 ? 255 0 > > ? pd 'type dot' > > ? pd 'pensize 5' > > ? pd 'color CLR' > > ? pd i.11 > > ? pd 'show' > > > > This gives me a line of blue dots. If I try itemcolor instead of > color I get > > the same plot followed by this error message: > > > > |length error: gppshape > > | ? e=.(#p) ? ?$e > > > > Can anybody help me, please? > > > > Graham > > > > > > > > -------------------------------------------------------------------- > > - > - > > For information about J forums see > http://www.jsoftware.com/forums.htm > And on Sat, 21 Apr 2012 04:06:54 +1200 Ric Sherlock <tikk...@gmail.com> wrote: > Subject: Re: [Jprogramming] Colouring dots in plot > To: Programming forum <programming@jsoftware.com> > Message-ID: > <CAOoUVu- > xto5dwr83twc1zadbyumo3g4s5mmck7emd8_mqmp...@mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > On Sat, Apr 21, 2012 at 3:38 AM, Graham Parkhouse > <graham.parkho...@ntlworld.com> wrote: > > > > Can I create my own palette, like was done for the Surface of > Revolution, > > using CLR=: (RED,:YELLOW) hue 0.1*i.11? Or was this done in a > plotting > > locale? > > > > The answer is yes (see my previous post). The colorxy_jzplot_ verb > looks like it could be useful for building palettes. > MYCLR_z_=: (255 0 0,:255 255 0) hue int01 #~.datgrp > becomes: > MYCLR_z_=: (#~.datgrp) colorxy_jzplot_ 1 0 0 ,: 1 1 0 > ------------------------------------------------------------- ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
