I'm writing plot functions in python scripts and using ipython to show them. I want to show the figures inside the page ,so that I used
%matplotlib inline
After that I can show the figures inside.
Is there a way to put this line inside the plot.py script so in ipython I just import the .py without specifying the %matplot code?
Thanks.
You should only have to run %matplotlib inline once per IPython session. All it does it tell matplotlib to plot graphs inline, as opposed to in a separate window.
Running it more than once (say once per script) seems pointless as it won't actually do anything. You could just run it at the top of your session and then not worry about it, your plots will still plot and you can still have plotting functions inside the Python files.
That aside, adding it inside a script is just not possible. It just returns a SyntaxError because you effectively run it as a Python script, not in the IPython terminal where it's set up to handle the magic methods.
Related
I am trying to run python in XCode. The following simple plotting routine,
import matplotlib.pyplot as pyplot
pyplot.plot((0,1),(1,2))
pyplot.show()
returns no errors. XCode seems pretty happy with what it accomplishes when I hit the run button. But I get no plot window whatsoever, as far as I can tell. Is it hiding somewhere or what? How do I get to see it?
xcode will allow you to see plots if you move your code into an interactive notebook.
create a new file with the .ipynb file extension
copy your code into that file
You should be able not only to see the plots but also any other output your code is trying to send to the UI.
I am aware of using the magic command %timeit in an IPython notebook to time individual functions.
However, I currently need to supply the time required to execute the calculations of an entire IPython notebook. How can I do this?
One option would be to save the IPython notebook as a Python file with extension .py and then run the entire time feature in the command line.
However, I am dealing with several calls of the matplotlib functions and pylab. This make take so long there are runtime errors.
How does one do this?
You can:
Export the notebook as *.py file.
Create a new notebook.
Copy the whole content of the *.py file into one cell of this notebook.
Time this cell with %%timeit (note the double %) by adding this command
in the first line.
You might need to edit the cell content as magic % commands are commented out. Likely that you don't want to measure the time for invoking things like %matplotlib inline. Therefore, moving these magic commands into a separate cell seems sensible.
I am working in python and using Anaconda with Spyder and I need to plot a scatter plot in a part of the code I am working on. The plot is just fine but is drawn in the console itself and the size is quite small for my needs.
My question is, how can I plot it in another window outside the ipython console? I already tried changing some of the setting like changing Graphics setting in ipython from inline to QT to tkinter. Nothing seems to work.
Any helpful suggestions?
you can just save %matplotlib qt in a .py file and you can start ipython using:
ipython -i myfile.py
I'm using IPython notebooks to share code and (hopefully) graphics with m collaborators. sadly, I cannot get matplotlib to plot inside the notebook, it always gives me a pop-up window, which I obviously cannot include in notebook pastes or similar.
Here's two minimal examples of how I go about plotting things.
Either with invoking plt.show() , or without it.
this either gives me an external pop-up, or plots nothing.
You need to be using the matplotlib inline backend.
%matplotlib inline
I am using matplotlib.pyplot (with Eclipse on Windows). Every time I run my code it opens several pyplot figure windows.
The problem is that if I don't close those windows manually they accumulate. I would like to use pyplot to find those windows (opened by another process of python.exe) and re-use them. In other words, I do not want to have multiple windows for the same figure, even across interpreter processes.
Is there a simple way to do it?
There is no simple way to reuse plot windows if you must use eclipse to run it. When I am working interactively with matplotlib, I use either spyder or ipython. Edit class, reload class, and run code again. If you just want to get rid of all the open plot windows, hit the stacked stop icons to kill all your runing python instances.