Error bars on a loglog?

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?

Hi Tom,

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 .