Using interp1 to interpolate y values
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Hi,
I am attempting to interpolate my y values array instead of my x values.
Data: (y : 35x1534 double) (x: 35x1 double) (ny= 35x46 double)
newy = interp1(y,x,ny);
Hoping to have an output which is
newy : 35x46 double
However it returns with dimension errors. Is it possible to interpolate my y values to my ny values or would this not be possible?
Thanks.
3 个评论
Image Analyst
2019-3-3
Why do you not have an x for every y? Wht are the ny values? Can you attach your matrices in a.mat file?
Kelly
2019-3-3
Cris LaPierre
2019-3-4
编辑：Cris LaPierre
2019-3-4
I don't think interpolating is going to work for you. Interpolation requires your data cover the same range of values just sampled at different intervals. Besides both having 35 rows, I don't see any sort of overlap in your data.
Here's your Y data (35x1534)
Here's your NY data (35x46)
采纳的回答
Cris LaPierre
2019-3-4
编辑：Cris LaPierre
2019-3-4
Since interpolating your data doesn't make sense to me, I suggest trying to downsample y instead.
idx46 = round(linspace(1,1534,46));
newy = y(:,idx46)
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