2D contour plot for 3 known variables

I currently have 4 datasets with 3 variables

SPD = [37.3;37.1;4.9;165]

K = [810;2250;1311;8000]

Level = [4;4;5;1]

I want to plot SPD and K and have a contour of Level, I will obviously have more data points eventually . Level is strictly from 1-5 so I'd ideally like a noticeable change in colour between each value.

Is this possible at all?

Answer 1

[KSSV]

SPD = [37.3;37.1;4.9;165] ;

K = [810;2250;1311;8000] ;

Level = [4;4;5;1] ;

[X,Y] = meshgrid(SPD,K) ;
val = repmat(Level,1,size(X,1)) ;
contour(X,Y,val)

[Joel Babbage]

This seems to only give me a contour of lines. The axes are what I am after but I was hoping for a 'fluid' contour around the points (SPD,K)

[Joel Babbage]

Apologies, I meant to add the screenshot originally but it didn't work. I have edited the picture in so you can see the result I'm getting.

[KSSV]

Show us any pictorial example..

[Joel Babbage]

This is similar to what I am after where the shades from green through to pink would represent level 1 - 5

[KSSV]

Ohh..for this you need to have x, y and level data......do you have it?

[Joel Babbage]

Yes, SPD and K represent my x and y data.