How to convert this to the filled 2-D contour plot?

I would like to convert the figure below to the one like the filled 2-D contour plot, but don't know how.

This figure is created by:

scatter(X, Y, 500, Z,'filled');

I have attached the data (variables) I used, as well.

FYI: What I meant here as the filled 2-D contour plot

https://jp.mathworks.com/help/matlab/ref/contourf.html

Any comments will be welcomed. Thank you in advance.

Answer 1

[KSSV]

load dataset.mat

m = 100 ; n = 100 ; 
x = linspace(min(X),max(X),m) ; 
y = linspace(min(Y),max(Y),n) ; 

[Xi,Yi] = meshgrid(x,y) ; 
Zi = griddata(X,Y,Z,Xi,Yi) ; 
pcolor(Xi,Yi,Zi)
shading interp ;

[Aoi Midori]

Thank you! That is exactly what I've wanted to get.