ipython not producing output graph using matplotlib

Question

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

@joaquin yes I think so, see comment to answer provided by elyase — AEA
– AEA, Commented Nov 19, 2013 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
– Kyle Kelley, Commented Nov 19, 2013 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
– AEA, Commented Nov 19, 2013 at 22:52

elyase · Accepted Answer · 2013-11-19 21:25:00Z

6

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

answered Nov 19, 2013 at 21:25

elyase

41.2k12 gold badges121 silver badges123 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

AEA Over a year ago

My IPython is already running as follows: C:\Python27\Scripts\ipython.exe notebook --pylab=inline

elyase Over a year ago

@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.

rdodev · Accepted Answer · 2013-11-19 21:21:55Z

0

from IPython.display import display
from IPython.display import Image

# your code here

Image(data=<your_image_data_here>, embed=True)

answered Nov 19, 2013 at 21:21

rdodev

3,2123 gold badges28 silver badges34 bronze badges

3 Comments

AEA Over a year ago

received the error: ERROR:astropy:TypeError: <matplotlib.lines.Line2D object at 0x225DADB0> is not JSON serializable

rdodev Over a year ago

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()

AEA Over a year ago

For reference this is the tutorial I was following. I made it 3 mins in before I hit issues. :( youtube.com/watch?v=uX4ZirOiWkw

Collectives™ on Stack Overflow

ipython not producing output graph using matplotlib

2 Answers 2

2 Comments

3 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

2 Comments

3 Comments

Your Answer

Sign up or log in

Post as a guest

Related