Edit - Stack Overflow

You are not logged in. Your edit will be placed in a queue until it is peer reviewed.

We welcome edits that make the post easier to understand and more valuable for readers. Because community members review edits, please try to make the post substantially better than how you found it, for example, by fixing grammar or adding additional resources and hyperlinks.

Required fields*

Rev

Required fields*

Scatter plot marker size calculation

I have a very specific problem. I have two numpy arrays and the corresponding element of each array represent a 2d point.

a = [1,2,1,6,1]

b = [5,0,3,1,5]

I want to plot a scatter plot where the size of the marker is based on how many times than point occurs.

That is :

1,5 : 2

2,0 : 1

1,3 : 1

6,1 : 1

So the size array must be size = [2,1,1,1] and other two arrays can be

a = [1,2,1,6] and b = [5,0,3,1]

So I must be able to call plt.scatter as follows:

plt.scatter(a,b,s=size)

Answer*

Edit Summary*

Cancel

Add a comment |

Correct minor typos or mistakes
Clarify meaning without changing it
Add related resources or links
Always respect the author’s intent
Don’t use edits to reply to the author

create code fences with backticks ` or tildes ~
```
like so
```
add language identifier to highlight code
```python
def function(foo):
print(foo)
```
put returns between paragraphs
for linebreak add 2 spaces at end
_italic_ or **bold**
indent code by 4 spaces
backtick escapes `like _so_`
quote by placing > at start of line
to make links (use https whenever possible)

<https://example.com>

[example](https://example.com)

<a href="https://example.com">example</a>

formatting help »
answering help »

Collectives™ on Stack Overflow

Scatter plot marker size calculation

Answer*