Error using ' TRANSPOSE does not support N-D arrays. Use PAGETRANSP​OSE/PAGECT​RANSPOSE to transpose pages or PERMUTE to reorder dimensions of N-D arrays.

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Madison
Madison 2023-6-3
回答： Walter Roberson 2023-6-3
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 个评论
Cris LaPierre
Cris LaPierre 2023-6-3
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.
Madison
Madison 2023-6-3
I apologize I included the wrong code, but I changed it to pagetranspose and I get an error saying Matrix dimensions must agree.
dir = 'C:\Users\Madison-Riley\Desktop\Thesis\Copernicus Data\'; % change this path to your working directory
ncfile = 'Sea.Surface.Height.nc'; % name of data file from copernicus
ncdisp([dir,ncfile])
% Dimensions: [longitude = 121; latitude = 181; depth = 1; time = 25 ]
% time = ncread([dir,ncfile],'time');
lat = ncread([dir,ncfile],'latitude');
lon = ncread([dir,ncfile],'longitude');
SWH = ncread([dir,ncfile],'VHM0');
% plot wind:
clf
pcolor(lon,lat,pagetranspose(SWH));
shading flat;
colorbar

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采纳的回答

Walter Roberson
Walter Roberson 2023-6-3
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

更多回答（1 个）

Hiro Yoshino
Hiro Yoshino 2023-6-3
Ran in:
I could reproduce the same error message as follows:
X = rand(3,3,4)
X =
X(:,:,1) = 0.6706 0.0303 0.5018 0.0730 0.1938 0.2540 0.8822 0.3482 0.4408 X(:,:,2) = 0.4965 0.3385 0.5116 0.1462 0.7965 0.0287 0.5615 0.5188 0.1173 X(:,:,3) = 0.8568 0.4259 0.6431 0.0039 0.5149 0.5037 0.5629 0.4344 0.3892 X(:,:,4) = 0.6134 0.9156 0.9039 0.1609 0.5476 0.5949 0.7602 0.2534 0.4676
transpose(X)
Error using .'
TRANSPOSE does not support N-D arrays. Use PAGETRANSPOSE/PAGECTRANSPOSE to transpose pages or PERMUTE to reorder dimensions of N-D arrays.
The best bet is replace this with pagetranspose as it says:
pagetranspose(X)
ans =
ans(:,:,1) = 0.2020 0.8862 0.2749 0.8334 0.3553 0.0783 0.6238 0.4919 0.9753 ans(:,:,2) = 0.7364 0.8973 0.6622 0.7870 0.0131 0.8621 0.1376 0.8198 0.8603 ans(:,:,3) = 0.1506 0.9980 0.8282 0.7839 0.0601 0.6889 0.4893 0.2768 0.0390 ans(:,:,4) = 0.8224 0.1869 0.4129 0.7513 0.9507 0.7576 0.9339 0.7996 0.8677
  3 个评论
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Cris LaPierre
Cris LaPierre 2023-6-3
编辑：Cris LaPierre 2023-6-3
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.
Madison
Madison 2023-6-3
Error using '
TRANSPOSE does not support N-D arrays. Use PAGETRANSPOSE/PAGECTRANSPOSE to transpose pages or
PERMUTE to reorder dimensions of N-D arrays.
Error in view_wave_data (line 17)
pcolor(lon,lat,SWH');

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