matplotlib-users Mailing List for matplotlib

Hi, some time ago I needed the same thing and hacked the function
histogram (from numpy). Here goes my function, I hope it will result useful
Cheers,
	Juan
## Calculates the histogram allowing for overlapping bins, which are
given by
#
# @param a
# @param bins a sequence of pairs (left,right), limits for each bin
#
# @return hist (numpy array)
# bin_centers (numpy array)
def myhistogram(a, bins):
 """
 Compute the histogram of a set of data.
 Parameters
 ----------
 a : array_like
 Input data.
 bins : sequence of pairs
 It defines the bin edges (left,right), allowing for non-uniform
bin widths.
 Returns
 -------
 hist : array
 The values of the histogram. See `normed` and `weights` for a
 description of the possible semantics.
 bin_centers : array of dtype float
 Return the bin centers ``(length(hist))``.
 Notes
 -----
 All but the last (righthand-most) bin is half-open. In other words, if
 `bins` is::
 [1, 2, 3, 4]
 then the first bin is ``[1, 2)`` (including 1, but excluding 2) and the
 second ``[2, 3)``. The last bin, however, is ``[3, 4]``, which *includes*
 4.
 Examples
 --------
 >>> myhistogram([1,2,1], bins=[(0,1),(1,1.5),(1.5,2.5),(2,3)])
 (array([0.5, 1.25, 2, 2.5]), array([0, 0, 1, 2, 3]))
 """
 bins = np.asarray(bins) # bins are 2-dimensional arrays
of shape (n,2)
 if len(bins.shape) != 2 or bins.shape[1] != 2:
 raise AttributeError, 'bins must be a list/array of 2-tuples.'
 a = np.asarray(a)
 a = a.ravel()
 n = np.zeros(len(bins), int)
 block = 65536
 for i in np.arange(0, len(a), block):
 sa = np.sort(a[i:i+block])
 n += np.r_[sa.searchsorted(bins[:-1,1], 'left'),
sa.searchsorted(bins[-1,1], 'right')]\
 - np.r_[sa.searchsorted(bins[:-1,0], 'left'),
sa.searchsorted(bins[-1,0], 'right')]
 return n, (bins[:,0]+bins[:,1])/2.

Hi I am using
wxpython : 2.9.4.0
matplotlib : 1.3
osx Lion
In my application I have a number of matplotlib figure objects, one on
each page of the wx.aui.AuiNotebook .The pages are each a figure and
arranged as tabs on the top of the wxpython frame like embedding in wx5
example from the matplotlib gallery.
On Windows I can navigate from page to page of the Notebook using CTRL-TAB
and CTRL-SHIFT-TAB.
However on OSX -Lion , neither the CTRL-TAB, nor Alt/Tab navigate from
page to page.
Instead what happens is that the "mouse selection" moves from icon to icon
i.e from the "Home" to the "Pan-zoom " icon on the bottom of the matplotlib
figure. The wxAuiNotebook is oblvious of these mouse events.
Does anyone know how to restore the windows os behavior where CTRL-TAB
changes the page of the Notebook on OSX. How do I prevent the matplotlib
figure object from intercepting these events.
Thanks
Hari