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up vote 0 down vote favorite

SO I have recently started trying to use ipython, I am finding I cannot get it to produce an output graph. I am running the following code in ipython:

from sklearn import linear_model
regr = linear_model.LinearRegression()

regr.fit(x, y)
pl.plot(x, y, 'o')
pl.plot(x_test, regr.predict(x_test))

and I am recieving the output: 

[<matplotlib.lines.Line2D at 0x21d453b0>]

With no image attatched.

I installed ipython using the pythonxy package. Any thoughts of suggestions on methods to get plots outputting correctly in ipython

See attached image:
enter image description here

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1  
are you using ipython with the -pylab option ? –  joaquin Nov 19 '13 at 21:25
    
@joaquin yes I think so, see comment to answer provided by elyase –  AEA Nov 19 '13 at 22:18
    
Which version of IPython are you on? Technically, I realize you tried using --pylab=inline. Can you just try running %matplotlib in a cell and then re-execute that code? –  Kyle Kelley Nov 19 '13 at 22:41
    
I am running ipython-1.1.0-py2.7.egg-info I tried to use Using %matplotlib and i recieved matplotlib backend: Qt4Agg –  AEA Nov 19 '13 at 22:52

2 Answers 2

up vote 5 down vote accepted

Try running in a cell:

%pylab inline    # or
%matplotlib inline

After that the plots should be displayed inline. Alternatively start the notebook using the inline option in the command line:

ipython notebook --pylab=inline
share|improve this answer
    
My IPython is already running as follows: C:\Python27\Scripts\ipython.exe notebook --pylab=inline –  AEA Nov 19 '13 at 22:16
    
@AEA, hmm, your code runs ok in my notebook, can you try resetting your matplotlib settings rm .matplotlib/matplotlibrc? Look here if you are on windows for the location of your matplotlibrc. –  elyase Nov 19 '13 at 23:19
up vote 0 down vote 
from IPython.display import display
from IPython.display import Image

# your code here

Image(data=<your_image_data_here>, embed=True)
share|improve this answer
    
received the error: ERROR:astropy:TypeError: <matplotlib.lines.Line2D object at 0x225DADB0> is not JSON serializable –  AEA Nov 19 '13 at 22:14
    
I'm not sure what format is output from plot() but it needs to be png or else pass the argument format='jpg' to Image() –  rdodev Nov 19 '13 at 22:26
    
For reference this is the tutorial I was following. I made it 3 mins in before I hit issues. :( youtube.com/watch?v=uX4ZirOiWkw –  AEA Nov 19 '13 at 22:27

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