Plot median values in a bin (binned plot)

fid = fopen('B0B1_Daytime.txt');
 datacell =textscan(fid,'%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f', 'collectoutput', true);
 M=datacell{1,1};
    x = (M(:,2));
    y = (M(:,1));
    z = (M(:,9)); 
  scatter(x,y,2,z,'s','filled')

This is the code that i have written here for the plot of x,y and z as surface plot. as it is attached here.

I want this plot with binned value and each bin should has median values in a bin.

[darova]

I don't understand the question. What does it mean: each bin should has median values in a bin? DO you have a picture?

[Arun Kumar Singh]

I want binned plot like this as i have attached here but here the values are just plotted with scatter function but i want binned plot of step size 1 on both axis but the value comes under step size of 1 degree they should be median value of all the values in that bin.

For example value occurrs into 0 to 1 degree … they all values should be median first and then this median value should be placed in 0 to 1 degree bin.

[darova]

Maybe just griddata?

[Arun Kumar Singh]

Griddata plots the binned plot but it takes average (mean) but i want Median plot

[darova]

Well, it's a problem

Answer 1

[Rik]

You can try gridbin.

I haven't used it myself, but it seems to do what you need.

[Arun Kumar Singh]

But again the problem is same that gridbin returns the mean value of all scattered data points within every cell of a grid rather than interpolating or fitting a surface.

but i want median value of all scatterd data points.

[Rik]

The documentation states you can supply any function to be applied to each grid cell, so providing @median should work.

[Arun Kumar Singh]

thank you it worked