how to make hollow square marks with matplotlib in python

Question

Black line in the following graph is plotting using the below command for matplotlib python

pylab.semilogy(xaxis, pq_averages, 'ks-',color='black', label='DCTCP-PQ47.5')

So 'ks-' part indicates solid line with square black marks. So it had solid squares for the plotted points. Can these squares be made hollow instead?

enter image description here

microseconds is typically one word :-)

jedwards
– jedwards

2012-06-08 23:20:59 +00:00
Commented Jun 8, 2012 at 23:20 — jedwards
– jedwards, Commented Jun 8, 2012 at 23:20

Ethan Coon · Accepted Answer · 2019-01-16 06:32:55Z

53

Try adding markerfacecolor like so:

pylab.semilogy(xaxis, pq_averages, 'ks-', markerfacecolor='none', label='DCTCP-PQ47.5')

edited Jan 16, 2019 at 6:32

Ethan Coon

7816 silver badges16 bronze badges

answered Jun 8, 2012 at 23:20

Hugh Bothwell

57k9 gold badges91 silver badges103 bronze badges

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

6 Comments

pelson Over a year ago

Nice answer. Slightly improved would be to use markerfacecolor='none', but in general, your solution will be perfect 90% of the time.

Hugh Bothwell Over a year ago

@pelson: yes, that is better - I was not aware that 'none' was accepted as a color.

David Roundy Over a year ago

@HughBothwell, can you edit the answer to use markerfacecolor='none'?

Alex I Over a year ago

In matplotlib 3.0.2, there is apparently no markerfacecolor. facecolor='none' does work.

mins Over a year ago

For those who run out of space writing parameters for pyplot: markerfacecolor can be abbreviated mfc, there are also mec and even mew. See documentation.

|

divenex · Accepted Answer · 2017-10-31 09:58:41Z

14

Setting markerfacecolor='white' does not actually make them hollow, it makes them white. In order to make them hollow, you need to set markerfacecolor='none'. Additionally, you need to set markeredgecolor to the color you want. So:

pylab.semilogy(xaxis, pq_averages, 'ks-',color='black',
       label='DCTCP-PQ47.5', markerfacecolor='none', markeredgecolor='black')

Will do the job for you.

edited Oct 31, 2017 at 9:58

divenex

17.7k11 gold badges67 silver badges59 bronze badges

answered Nov 17, 2016 at 19:39

Saber

3243 silver badges8 bronze badges

1 Comment

lanery Over a year ago

"Additionally, you need to set markerfacecolor to the color you want." You mean markeredgecolor here, right?

Collectives™ on Stack Overflow

how to make hollow square marks with matplotlib in python

2 Answers 2

6 Comments

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

6 Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related