Suppress output of object when plotting in IPython

Question

Is it possible to suppress the array output when plotting a histogram in IPython?

For example:

plt.hist(OIR['Range'], bins, named=True, histtype='bar')

outputs/prints the array information before displaying the graph.

score 56 · Answer 1 · edited Nov 22 '22 at 20:33

56

Just put ; after the code.

It works only in Jupyter Notebook.

plt.hist(...);

edited Nov 22 '22 at 20:33

Peter Mortensen

answered Aug 03 '15 at 16:17

weiz

9

Brilliant solution! The reason this works is because the notebook shows the return value of the last command. By adding `;` the last command is "nothing" so there is no return value to show. – kynan Nov 06 '15 at 13:26

score 35 · Accepted Answer · answered Jan 24 '13 at 17:00

35

Assign the return value to a variable (which I call _ to indicate it's unused):

_ = plt.hist(...)

answered Jan 24 '13 at 17:00

NPE

16

alternately, you can suppress output by putting a semicolon at the end of the last line: `plot(foo);` – minrk Jan 24 '13 at 19:43

score 3 · Answer 3 · edited Nov 22 '18 at 11:40

3

You can also add plt.show():

plt.hist(OIR['Range'], bins, named=True, histtype='bar')
plt.show()

edited Nov 22 '18 at 11:40

Suraj Rao

answered Nov 22 '18 at 11:36

mendel

How does that suppress the output (*"prints the array information before displaying the graph"*)? How does it work? It seems like a ***bogus answer***. Is it? – Peter Mortensen Nov 22 '22 at 20:42
The OP has left the building: *"Last seen more than 2 years ago"*. Perhaps somebody else can chime in? – Peter Mortensen Nov 22 '22 at 20:43

3 Answers3