Convert X,Y,Z column data into equally spacing grid of X,Y and corresponding Z

have column vector X=m*1; Y=m*1; Z=m*1; (with NaN in between)

Want to convert Z data into regular spacing of X and Y; X ( -90 to 90) and Y(-180 to 180) irrespective of range of the column vectors X and Y.

Kindly help! Thanks!

[KSSV]

You need to attach your data.....to have a look whether your data is scattered or structured. YOu need to use griddata or ScatteredInterpolant or reshape_ for that.

[Bhowmik.U]

Yes, I was trying and griddata helped!

[Bhowmik.U]

I could grid X,Y, and Z on regular grid. Now the problem is X=m*1; Y=m*1;Z=m*1; How do I convert Z into a matrix in accordance to X and Y.

Kindly help

[Bhowmik.U]

made meshgrid of X and Y [LON LAT]=meshgrip(X,Y); got LON=m*m and LAT=m*m..then?

[Bhowmik.U]

meshgrid*

Answer 1

[KSSV]

Let X,Y,Z be your data.

N = 500 ;
xi = linspace(min(X),max(X),N) ;
yi = linspace(min(Y),max(Y),N) ;
[Xi,Yi] = meshgrid(xi,yi) ;
Zi = griddata(X,Y,Z,Xi,Yi) ;

[Bhowmik.U]

Thanks a lot Sir!...I was going wrong in not using meshgrid before griddata!