upstream/ipython Files · docs/examples/core/example-gnuplot.py

Merge pull request from bfroehle/use_alias_magic...

Merge pull request from bfroehle/use_alias_magic Add an API for registering magic aliases. Add a method `register_alias` to `MagicsManager` which can be used to register new magic aliases. Each magic alias is an instance of `MagicAlias`, a helper class whose `__call__` looks up the target of the alias (at call time) and dispatches the magic call. As a future benefit, this could be easily extended to allow for new aliases which contain some flags to pass to the function. For example, it would be easy to change the behavior to allow the creation of an `%ex` alias for `%edit -x`.

Tom MacWright - - Load All Authors

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      #!/usr/bin/env python

      """

      Example code showing how to use Gnuplot and an embedded IPython shell.

      """

      from Numeric import *

      from IPython.numutils import *

      from IPython.Shell import IPShellEmbed

      # Arguments to start IPython shell with. Load numeric profile.

      ipargs = ['-profile','numeric']

      ipshell = IPShellEmbed(ipargs)

      # Compute sin(x) over the 0..2pi range at 200 points

      x = frange(0,2*pi,npts=200)

      y = sin(x)

      # In the 'numeric' profile, IPython has an internal gnuplot instance:

      g = ipshell.IP.gnuplot

      # Change some defaults

      g('set style data lines')

      # Or also call a multi-line set of gnuplot commands on it:

      g("""

      set xrange [0:pi]     # Set the visible range to half the data only

      set title 'Half sine' # Global gnuplot labels

      set xlabel 'theta'

      set ylabel 'sin(theta)'

      """)

      # Now start an embedded ipython.

      ipshell('Starting the embedded IPython.\n'

              'Try calling plot(x,y), or @gpc for direct access to Gnuplot"\n')

      #********************** End of file <example-gnuplot.py> *********************

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				#!/usr/bin/env python
				"""
				Example code showing how to use Gnuplot and an embedded IPython shell.
				"""

				from Numeric import *
				from IPython.numutils import *
				from IPython.Shell import IPShellEmbed

				# Arguments to start IPython shell with. Load numeric profile.
				ipargs = ['-profile','numeric']
				ipshell = IPShellEmbed(ipargs)

				# Compute sin(x) over the 0..2pi range at 200 points
				x = frange(0,2*pi,npts=200)
				y = sin(x)

				# In the 'numeric' profile, IPython has an internal gnuplot instance:
				g = ipshell.IP.gnuplot

				# Change some defaults
				g('set style data lines')

				# Or also call a multi-line set of gnuplot commands on it:
				g("""
				set xrange [0:pi] # Set the visible range to half the data only
				set title 'Half sine' # Global gnuplot labels
				set xlabel 'theta'
				set ylabel 'sin(theta)'
				""")

				# Now start an embedded ipython.
				ipshell('Starting the embedded IPython.\n'
				'Try calling plot(x,y), or @gpc for direct access to Gnuplot"\n')

				#******************** End of file <example-gnuplot.py> *******************