Hi,
following GNUplot step-plot behavior (see
http://chem.skku.ac.kr/~wkpark/tutor/gnuplot/gpdocs/steps.htm), as
mentionned by Peter Groszkowski (in
http://sourceforge.net/mailarchive/message.php?msg_id=9646290), could
the 'hsteps' linestyle be implemented in matplotlib? (as well as
'fsteps' for sake of completness)
Here is what I currently use to mimic these different step-styles:
from pylab import *
x = array([1,3,5,7,10,12,15], dtype='d')
y = x
scatter(x, y, label='__nolegend__')
# Matplotlib original steps
plot(x, y, ls='steps', label='steps')
# Forward(?) step
xx = empty(len(x)+1, dtype=x.dtype)
xx[0] = x[0]
xx[1:] = x
yy = empty(len(x)+1, dtype=x.dtype)
yy[:-1] = y
yy[-1] = y[-1]
plot(xx, yy, ls='steps', label='fsteps')
# Histogram steps
xx = empty(len(x)+1, dtype=x.dtype)
xx[1:-1] = correlate(x, [0.5,0.5])
xx[0] = 2*x[0] - xx[1]
xx[-1] = 2*x[-1] - xx[-2]
yy = empty(len(x)+1, dtype=x.dtype)
yy[:-1] = y
yy[-1] = y[-1]
plot(xx, yy, ls='steps', label='hsteps')
legend(loc='best')
show()
Cheers.
--
/ \ , ,
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