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abline.pro

topabline

plotting

abline, a, b [, xrange] [, NPOINTS=NPOINTS] [, _EXTRA=_EXTRA]

overplot a line on a plot from the slope and intercept

Parameters

a in required: the slope of the line
b in required: the y-intercept
xrange in optional: element array of the xrange over which to overplot

Keywords

NPOINTS in optional: set the number of points in the oplot. Default 20
_EXTRA in optional: anything else to oplot

Examples

 x=findgen(100)
 y=x+randomn(seed, 100)*3
 a=regress(x, y, const=b)
 plot, x, y, psym=1
 abline, a, b, [20,75]             ;

Author information

History:: Tue Jan 22 17:27:58 2008, Brian Larsen written and tested

Statistics

Lines:	19
McCabe complexity:

File attributes

Modifcation date:	Tue Sep 9 14:10:50 2008
Lines:	64