countour plot based on temperature value

I have x, y values. and I have a temperature for each point. I want to draw a counter line based on these temperature values. how can I do it?
contour (xq, yq, vq); %size of matrix:xq (247x1) yq (247x1) vq (247x1)
When I use it, I get the following error.
Error using contour (line 48)
Z must be at least a 2x2 matrix.

 采纳的回答

This example in the documentation shows how to set up the contour() inputs.
For the syntax contour(x,y,z), z is your mxn temperature matrix. x is your 1xn (or nx1) latitude values, y is your 1xm (or mx1) longitude values. Note now the n's and m's pair between those inputs.
Alternatively, x and y can also be mxn matrices with the lat and lon values for each value of z.
Here's a demo to show the shape of inputs.
contour(1:10, 1:20, rand(20,10))
axis equal

1 个评论

Hello Adam Danz, please i really need your help on this question, i can't seem to wrap my head around it.
I will really appreciate your help,
Thanks

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