Error using ' TRANSPOSE does not support N-D arrays. Use PAGETRANSPOSE/PAGECTRANSPOSE to transpose pages or PERMUTE to reorder dimensions of N-D arrays.
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The data is from Copernicus, but sea surface height (SHW) is a 3D matirx
clear
clc
dir = 'C:\Users\Madison-Riley\Downloads\';
ncfile = 'PotentialTemp.nc'; % name of data file from copernicus
ncdisp([dir,ncfile])
lon = ncread([dir,ncfile], 'longitude');
lat = ncread([dir,ncfile], 'latitude');
depth = ncread([dir,ncfile], 'depth');
time = ncread([dir,ncfile], 'time');
% note 'squeeze' function gets rid of the single dimension (depth=1):
temp= squeeze(ncread([dir,ncfile], 'thetao')); % Sea water potential temperature (long,lat,depth(=1),time)
clf
% plot temp for time t=1:
pcolor(lon,lat,temp(:,:,1)');
shading flat;
colorbar
2 Comments
Cris LaPierre
on 3 Jun 2023
I don't see a variable SHW in your code. The only transpose operation I see is a 2D array, which should work.
Please share the full error message (all the red text). Please save your variable lon, lat, depth, time, and temp to a mat file and attach that to your post using the paperclip icon.
Accepted Answer
Walter Roberson
on 3 Jun 2023
Your nc file has lat, long, one depth, and multiple times, making it a 4 dimensional array. You are trying to pcolor() the entire 4d array at the same time. pcolor can only handle 2d data.
The error with transpose is a side show. You could permute() [2 1 3 4] instead of ' but the resulting array would still be 4d and pcolor cannot handle that. You should extract the data for one time for each pcolor, possibly looping animating over time
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More Answers (1)
Hiro Yoshino
on 3 Jun 2023
I could reproduce the same error message as follows:
X = rand(3,3,4)
transpose(X)
The best bet is replace this with pagetranspose as it says:
pagetranspose(X)
3 Comments
Cris LaPierre
on 3 Jun 2023
Edited: Cris LaPierre
on 3 Jun 2023
Please share the full error message (all the red text). Please save your variables lon, lat, time, and SHW to a mat file and attach that to your post using the paperclip icon.
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