The Python interpreter assigns the last expression value to _. This behaviour is limited to the REPL interpreter only, and is intended to assist in interactive coding sessions: >>> import math >>> math.pow(3.0, 5) 243.0 >>> result = _ >>> result 243.0 The standard Python interpreter goes to some length to not trample on user-defined … Read more
You can use a semi-colon ; to end the line. This suppresses the unwanted output when generating plots: plt.plot(I,’o’); In general, using a semi-colon stops IPython from printing any output value from that line of a code block. For example, the executing the cell containing the code 1+1; would not output 2. An alternative way … Read more
Change the cell type to Markdown in the menu bar, from Code to Markdown. Currently in Notebook 4.x, the keyboard shortcut for such an action is: Esc (for command mode), then m (for markdown).
You can switch the matplotlib’s backend by %matplotlib <backend>. To switch back to your system’s default backend use %matplotlib auto or just simply %matplotlib. There are many backends available such as gtk, qt, notebook, etc. I personally highly recommend the notebook (a.k.a. nbagg) backend. It is similar to inline but interactive, allowing zooming/panning from inside … Read more
Assuming that you are using ipython or jupyter, you will need to do a little bit of work to get a list all of the objects you have defined. That means taking everything available in globals() and filtering out objects that are modules, builtins, ipython objects, etc. Once you are sure you have those objects, … Read more
Using subplots is not too complicated, the spines might be. Dumb, simple way: %matplotlib inline import numpy as np import matplotlib.pyplot as plt x = np.linspace(0.2,10,100) fig, ax = plt.subplots() ax.plot(x, 1/x) ax.plot(x, np.log(x)) ax.set_aspect(‘equal’) ax.grid(True, which=”both”) ax.axhline(y=0, color=”k”) ax.axvline(x=0, color=”k”) And I get: (you can’t see the vertical axis since the lower x-limit is … Read more
Though this isn’t exactly what you seem to be looking for, if you wish to entirely omit the execution of a cell (where no cached results are loaded), you can add the following hack at the beginning of a cell (assuming you are using a Unix-based OS): %%script false or a variant (working as of … Read more
You can create jupyter_notebook_config.py by: jupyter notebook –generate-config Then you go to ~/.jupyter/jupyter_notebook_config.py and change # c.NotebookApp.browser=”” to for example: c.NotebookApp.browser=”/usr/bin/google-chrome %s” You can choose which ever browser is installed. You’ll find the path for example by typing which firefox Do not forget to delete the #
In recent versions of IPython, you do need to add the -i option to get into the interactive environment afterwards. Without the -i it just runs the code in myfile.py and returns to the prompt. ipython -i myfile.py
This should fix the issue: pip install jupyter