upstream/ipython Files · docs/examples/kernel/phistogram.py

Fix bug where 'if 1:' was being added to comment-only code....

Fix bug where 'if 1:' was being added to comment-only code. Found by trying to paste and run this example: http://matplotlib.sourceforge.net/examples/api/collections_demo.html that happened to have indented, comment-only lines of the type: code() # comment code() In these cases, we should *not* try to prepend 'if 1:' to the user's code since that comment by itself isn't executable, and it will cause a compiler IndentationError.

Brian E Granger - - Load All Authors

File last commit:

r1337:53a3e331


                r2979:63d38bdf

Download file

             phistogram.py
        
                    33 lines
            
             | 985 B
            
                | text/x-python
            
             |
                PythonLexer
            
             / docs / examples / kernel / phistogram.py
          
                    History
                
                 |
                  Annotation
                 | Raw
                 |Copy content
                 |Copy permalink

      """Parallel histogram function"""

      import numpy

      def phistogram(rc, a, bins=10, rng=None, normed=False):

          """Compute the histogram of a remote array a.

          :Parameters:

              rc

                  IPython RemoteController instance

              a : str

                  String name of the remote array

              bins : int

                  Number of histogram bins

              rng : (float, float)

                  Tuple of min, max of the range to histogram

              normed : boolean

                  Should the histogram counts be normalized to 1

          """

          nengines = len(rc)

          rc.push(dict(bins=bins, rng=rng))

          rc.execute('import numpy')

          rc.execute('hist, lower_edges = numpy.histogram(%s, bins, rng)' % a)

          lower_edges = rc.pull('lower_edges', targets=0)

          hist_array = rc.gather('hist')

          hist_array.shape = (nengines,-1)

          total_hist = numpy.sum(hist_array, 0)

          if normed:

              total_hist = total_hist/numpy.sum(total_hist,dtype=float)

          return total_hist, lower_edges

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

				"""Parallel histogram function"""
				import numpy

				def phistogram(rc, a, bins=10, rng=None, normed=False):
				"""Compute the histogram of a remote array a.

				:Parameters:
				rc
				IPython RemoteController instance
				a : str
				String name of the remote array
				bins : int
				Number of histogram bins
				rng : (float, float)
				Tuple of min, max of the range to histogram
				normed : boolean
				Should the histogram counts be normalized to 1
				"""
				nengines = len(rc)
				rc.push(dict(bins=bins, rng=rng))
				rc.execute('import numpy')
				rc.execute('hist, lower_edges = numpy.histogram(%s, bins, rng)' % a)
				lower_edges = rc.pull('lower_edges', targets=0)
				hist_array = rc.gather('hist')
				hist_array.shape = (nengines,-1)
				total_hist = numpy.sum(hist_array, 0)
				if normed:
				total_hist = total_hist/numpy.sum(total_hist,dtype=float)
				return total_hist, lower_edges