Hello: I'm having trouble figuring out how to plot error bars
> on a log log plot. It doesn't seem that loglog takes an
> errorbar keyword. Any pointers?
The semilogx, semilogy and loglog plots are thin wrappers around plot
that set the scale of the axes. So you can use a log scale on any
axis that has strictly positive data
from matplotlib.matlab import *
x = arange(10)
y = 1e6*rand(10)+1e5+1
err = 1e5*rand(10)
ax = gca()
See also http://matplotlib.sf.net/examples/log_bar.py .