Matplotlib scatter marker size

Question

I'm trying to plot a 3D scatter with matplotlib The problem is that I can't change the marker's size I have this

scat = plt.scatter([boid_.pos[0] for boid_ in flock],
                   [boid_.pos[1] for boid_ in flock],
                   [boid_.pos[2] for boid_ in flock], 
                   marker='o', s=5)

But I get the error

TypeError: scatter() got multiple values for keyword argument 's'

Without that, the plot works fine. Where is the problem? Or is there another way to change the size?

wim · Accepted Answer · 2013-10-18 13:54:52Z

23

This function takes in two args before the keyword args:

scatter(x, y, s=20, ...)

And you are passing in three, so you are specifying s twice (once implicitly and once explicitly).

Actually, I think you are trying to use the 2D scatter plot function instead of a 3D one. You probably want to do this instead:

from mpl_toolkits.mplot3d import Axes3D
Axes3D.scatter( ... )

answered Oct 18, 2013 at 13:54

wim

368k114 gold badges681 silver badges817 bronze badges

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

2 Comments

PerroNoob Over a year ago

Maybe I should have written it in my post, but I had fig=plt.figure() and ax = Axes3D(fig) before. I still got an error if I use Axes3D.scatter: TypeError: unbound method scatter() must be called with Axes3D instance as first argument (got list instance instead)

PerroNoob Over a year ago

I'm sorry, I figured it out, that doing ax = fig.add_subplot(111, projection = '3d') and then ax.scatter() , I don't get an erro anymore. Your answer made me realize that maybe I had something wrong with the scatter. Thanks for your help

Collectives™ on Stack Overflow

Matplotlib scatter marker size

1 Answer 1

2 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related