That's very helpful - it also gave me the clue for extending this labeling to 3D plots:
'type surface' plot (;];(f+g) +/ g-f) i:6j99 Thanks... On Thu, Nov 11, 2010 at 12:18 PM, Thomas Costigliola <[email protected]>wrote: > Devon, it can be done by adding an additional character: > > plargs plot (;f, g, (f+g),: g-f) i: 6j99 > > If the plot data is a 2 element boxed list the first item contains the > x-values, the second the y-values. > > On Thu, Nov 11, 2010 at 12:13 PM, Devon McCormick <[email protected]> > wrote: > > Hi everybody - > > > > I'm putting together a 5-minute presentation on J for a "Language > Slapdown" > > next week here in NYC - http://www.meetup.com/Language-Slapdown/ . > > > > I'd like to show a few colorful graphs but I'm hitting a problem I've had > > before but ignored: the default for axis labels doesn't reflect the true > > (X-axis) values without a lot of work. For example, > > > > load 'plot' > > > > plargs=. 'pensize 5;key f g f+g g-f;keystyle fat;keypos rti; ' > > > > plargs=. plargs ,'keyfont Courier 14' > > > > > > > > f=: 1 0 _0.3 0.01 0.004 &p. *NB. 1+0x-0.3x^2+0.01x^3+0.004x^4* > > > > g=: 3 0.5 0.1 _0.02 _0.006 &p. *NB. 3+0.5x+0.1x^2-0.02x^3-0.006x^4* > > > > > > > > plargs plot (f, g, (f+g),: g-f) i: 6j99 > > > > This gives an interesting plot but the X-axis doesn't reflect the values > _6 > > to 6. If I use something like "xlabel ',":i:6j99", the axis values are > > unreadable as it tries to put all the numbers in. Is there an easy way > to > > specify that the labels should be something like "i:6j6" but still plot > > against the X-values of i:6j99? > > > > Thanks, > > > > Devon > > > > -- > > Devon McCormick, CFA > > ^me^ at acm. > > org is my > > preferred e-mail > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > -- Devon McCormick, CFA ^me^ at acm. org is my preferred e-mail ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
