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## plotting question

**From**: |
Jonathan Nichols |

**Subject**: |
plotting question |

**Date**: |
Fri, 14 Mar 2003 16:37:29 -0800 |

**User-agent**: |
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.1) Gecko/20021003 |

hello all,

` i have a plotting question that i was wondering if you could help
``with.
``
`` i have a set of x,y pairs, each of which has a z value. i would
``like to create a 2-D plot where every x,y pair has a point associated
``with it, whose color indicates the magnitude of the z value.
`

` ideally, i would like to be able to use the colormap feature so that
``i can use any color for the points. if this is possible, how do i tell
``the plot function to use a color from the colormap? or is it done with
``the gset command?
`

` if this is not possible, i can use the format feature of the plot()
``fuction which gives me a choice of one of the red, green, blue, cyan,
``magenta, brown colors.
`
one of the methods i have tried is the following:
plot(x1,y1,color1);
hold on
plot(x2,y2,color2);
plot(x3,y3,color3);
.....

` the problem with this is that it puts a plot legend in the upper
``right hand corner of the plot. since there are hundreds of points in
``this dataset, the entire plot is covered with "line 123" legend text.
``
` if i use the above method, how do i get rid of the legend text?
thanks,
jon
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**plotting question**,
*Jonathan Nichols* **<=**