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Error using - Matrix dimensions must agree.

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please I will be grateful for any help for this error:
Error using -
Matrix dimensions must agree.
Error in tvf_emd (line 136)
temp_x = temp_x-y(ind_remov_pad);
the code is below:
if flag_stopiter
temp_x = temp_x-y(ind_remov_pad);
per isakson
per isakson on 19 Oct 2019
We wrote our comments at the same time, which explains the confusion.

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Accepted Answer

per isakson
per isakson on 19 Oct 2019
Edited: per isakson on 23 Oct 2019
I get a different error. One reason for the difference in the wording is that we run different releases of Matlab(?). I run R2018b. However, more important it seems we are running different versions of your program. (Note: The line number might differ, since I have deleted some blank lines.)
>> dbstop if error
>> imf = tvf_emd( DS_DATA_ODU )
Unable to perform assignment because the size of the left side is 1-by-500 and the size of the right side is 231-by-500.
Error in tvf_emd (line 39)
39 imf(nimf,:)=temp_x;
K>> whos imf nimf temp_x
Name Size Bytes Class Attributes
imf 50x500 200000 double
nimf 1x1 8 double
temp_x 231x500 924000 double
K>> nimf
nimf =
This error is because you cannot overwrite one row of imf by the full matrix temp_x. The error of your question is most likely of the same kind.
The line imf(nimf,:)=temp_x; should probably be imf(nimf,:)=temp_x( some_index, : ) ;
In response to comment
If it ain't broke, don't fix it
"The original version [of tvf_emd] can be found at file exchange" Yes, I found Time varying filter based empirical mode decomposition(TVF-EMD). In the example, signal_decomposition.m, the function, tvf_emd, takes a row vector (signal) and returns a matrix. The number of rows of the output matrix depends on the input signal. There is no indication that the functions could take a matrix, i.e. many signals, as input. The documentation of tvf_emd isn't enough to make major modifications of the code - IMO.
Your goal is to make a function that takes a matrix. And returns what? Simplest first, make a wrapper. Try
>> imf_array = my_tvf_emd( DS_DATA_ODU );
>> whos imf_array DS_DATA_ODU
Name Size Bytes Class Attributes
DS_DATA_ODU 231x500 924000 double
imf_array 231x1 11129872 cell
function imf_array = my_tvf_emd( signals )
len = size( signals, 1 );
imf_array = cell( len, 1 );
for jj = 1 : len
imf_array{jj} = tvf_emd( signals(jj,:) );
Yussif M. Awelisah
Yussif M. Awelisah on 23 Oct 2019
this worked and I am sincerely grateful.

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