Choose the ideal number of bins in hist3

Dear all,

I want to plot a hist3 plot but i'm not sure which is the ideal number of bins that I would need to define.

I have two variables with 116640 x 1 size and I'm using the following line of code:

hist3([Var1, Var2],[200 200],'CDataMode','auto','EdgeColor','none');

In this case I'm using [200 x 200] number of bins but as I want to compare these results with others with different variable sizes I'm not sure how to get the ideal number of bins based on the matrix sizes.

Do you have any idea how to do this?

Thank you in advance

[Jan]

What do you call "ideal"? There is no general definition for this term concerning the number of bins.

[Ricardo Duarte]

Hello Jan,

By "ideal" I want to say that it can be comparable between variables with different sizes.

Thank you

[Jan]

This does not really clarify your needs. Now "comparable" is open for any definitions.

Please explain, which problem you want to solve actually.

[Ricardo Duarte]

The problem is that I have two plots that i can not compare them because they have two different number of bins.

Please have a look on these two figures:

In this figure I have 120bins

and in this one I have 1000bins

Is there any way to find a good number of bins (let's say, that allow me to see something in the plots) to make possible this comparison?

Thank you

[Jan]

What about a 2D interpolation with the smaller number of bins? This will keep the highest possible resolution for a 1-by-1 comparison.