convert fit data to matrix

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David Pitcher
David Pitcher 2017-5-24
评论： David Pitcher 2017-5-26
So I created a table of x, y and z values and input them into fit using
f = fit([T.x, T.y],T.z,'cubicinterp')
they create the plot I would like but f is not a matrix for further processing.
Is there any way of getting z values for the fit object? I would like the output to be a 512x512 matrix
Sorry pretty new to matlab

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回答（1 个）

Sanket Karnik
Sanket Karnik 2017-5-26
I understand that you want to fetch the z values from the fit object. Please refer to the following link which speaks about obtaining y values from the curve fitting tool: Get Y values from Curve Fitting Tool
You can use use the same method to obtain z values from fit object.
  1 个评论
David Pitcher
David Pitcher 2017-5-26
Thanks Sanket I used the below code which seems to have worked too
[x2,y2] = meshgrid(1:512,1:512);
f2 = [f(x2,y2)];

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