How to Interpolate an entire data set
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How to Interpolate an entire data set.I have two datasets and I am trying to determine tidal energy for the lat and lon values of my elasmobranch sightings. Since teh specific sighting lat and lon dont exist in my tidal data I am trying to interpolate them.
I have tried interpolting each value seperatly, but I recieve a value of 0. I've tried both interp1 and interp2
Tides=readtable('Tide_Data_Final.csv')
C = Tides.Longitude
M= Tides.Latitude
A=Tides.Tide
F=scatteredInterpolant(C,M,A);
Anew= F(52.00,-6.00);
figure(1)
stem3(C,M, A)
hold on
stem3(52.000,-6.00, Anew, 'r')
hold off
grid on
xlabel('\sigma')
ylabel('\alpha')
interp2(C,M,A,52.000,-6.000)
4 Comments
Accepted Answer
dpb
on 1 Aug 2023
Moved: dpb
on 1 Aug 2023
unzip Tide_Data_Final
Tides=readtable('Tide_Data_Final.csv');
head(Tides)
nnz(Tides.Tide)
height(Tides)
F=scatteredInterpolant(Tides.Latitude,Tides.Longitude,Tides.Tide);
Tnew= F(52.00,-6.00)
You have a perfectly good table with real variable names; use it/them.
You created another set of variables C,M,A with no relation at all to the actual data and turned the reference to lat, lon around by doing so and couldn't see the obvious since the new variable names bore no relationship to the actual data.
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