Thank you, Rob. I (could easily find and) read those links before my initial ques email. I'll give you the longer story.
I had issue reconciling what I read from 2 sources: A. From calculus.pdf, page 7 - more than 1 plot types are given to the plot verb as its x argument: load 'plot' PLOT=:’stick,line’&plot PLOT t;h B. From the Plot/Verbs page (https://code.jsoftware.com/wiki/Plot/Verbs), it said they should be separated by semicolons. Then, where does the comma come from? So, I thought the documentation was no longer up-to-date. And the following experiments caused me further confusion: 'stick,line ; yrange _2 2 ; xtic 1p1 3' plot _2p1 2p1 ; 'sin' NB. works 'yrange _2 2 ; xtic 1p1 3 ; stick,line' plot _2p1 2p1 ; 'sin' NB. doesn't |option not found: stick,line: signal | signal'option not found: ',j I read some more this morning, and did more experiments. It seems 'stick,line' belongs to the type option, and by default (only in the beginning of x), plot assumes type's value string (and the comma is actually optional). If we need to put them aside from the beginning of x, we seem to have to explicitly use the type option keyword. 'yrange _2 2 ; xtic 1p1 3 ; type stick,line' plot _2p1 2p1 ; 'sin' NB. works This for pointing me back to the jwiki for a second look to figure this out. That said, I still couldn't find the equivalent of xticklabels ( https://www.mathworks.com/help/matlab/ref/xticklabels.html) in J yet. Not yet implemented? thank you. Maurice On Sun, Mar 12, 2023 at 3:02 AM 'robert therriault' via Programming < programm...@jsoftware.com> wrote: > Hi Maurice, > > With respect to finding the documentation on the wiki, have you looked at > https://code.jsoftware.com/wiki/Plot and in particular > https://code.jsoftware.com/wiki/Plot/Options > > A lot of the fine tuning of Plot seems to be done through pd. The > Development section of the plot page may also give you some useful > information. > > My apologies if you have already looked at them and found them wanting, > but when you said you did not find the doc in the wiki, I just wanted to be > sure that you were aware of these. > > Cheers, bob > > > On Mar 11, 2023, at 22:07, More Rice <mrmorer...@gmail.com> wrote: > > > > Hi, > > > > some questions, if I may ... > > > > 1. plot can't handle asymptote (or "not in domain" issue) right at the > > boundary in its domain? > > > > install 'all' > > > > load 'plot trig numeric' > > > > plot _5 5 ; '%' NB. ok > > > > plot _5 0 ; '%' NB. Bad > > > > |NaN error: plotfintvl > > > > | bakproj=.({:"1 zvals),~"0 1(}."1 zvals) -(}."1 secant)*"1 intsize > > > > plot 0 5 ; '%' NB. Bad > > > > |NaN error: plotfintvl > > > > | fwdproj=.({."1 zvals),"0 1(}:"1 zvals) +(}:"1 secant)*"1 intsize > > > > plot 0 10; '%:' NB. ok > > > > plot _1 10; '%:' NB. Bad > > > > |domain error: plotsubd > > > > | mtone1=. > > (<./@:((((i.&0)@:(2&(<:/\)))>.((i.&0)@:(2&(>:/\))))"1))@(1&{::)"1 d > > > > JVERSION > > > > Engine: j903/j64avx2/windows > > > > Release-b: commercial/2022-01-28T04:09:50 > > > > Library: 9.03.08 > > > > Qt IDE: 1.9.5s/5.15.2(5.15.2) > > > > Platform: Win 64 > > > > Installer: J903 install > > > > InstallPath: c:/users/myself/software/j903 > > > > Contact: www.jsoftware.com > > > > > > > > 2. I'm trying to control plot's y-scale and x-/y-tick labels. I don't see > > its doc in jwiki nor calculus.pdf. So, I tried scrolling through > > Help|Studio|Showcase...|plot to see if they're possible; but still > > nothing. For example, instead of a numeric value, I want to do 0, +/- > > 1p1, +/- 2p1, etc. Can it be done? > > > > > > 3. While looking for solution to #2, I stumbled upon a bug: > > Help|Studio|Showcase...|isigraph. Repeatedly pressing F12 till you see > > 'Screen Roller' (yes, ignore Paint Demo and just hit another F12). Once > > you reach this stage, Paint Demo will relaunch if you try to exit the > > window. In the end, I've to kill the jqt to get out of the demo. > > > > > > thanks > > > > > > Maurice > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
