mscohere function with two cell arrays

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Felicia DE CAPUA
Felicia DE CAPUA on 12 Jan 2023
Answered: Aditya Jha on 16 Jan 2023
Hi everyone,
I'm using mscohere functiom with two cell arrays 64x1. When I obtain the output, I obtain a cell array 64x1. After, I converted the cell array in matrix array with cell2mat ed obtain a matrix 33554496x64. What is the problem?
Thank to everyone
Jiri Hajek
Jiri Hajek on 13 Jan 2023
Hi, this would be pure guesswork, without a data sample.
Bjorn Gustavsson
Bjorn Gustavsson on 13 Jan 2023
Edited: Bjorn Gustavsson on 13 Jan 2023
mscohere does not accept cell-arrays as input:
xCell1 = {randn(64,1)};
xCell2 = {randn(64,1)};
whos xCell1 xCell2
Name Size Bytes Class Attributes
xCell1 1x1 616 cell
xCell2 1x1 616 cell
Error using pwelch
Expected x to be one of these types:
single, double
Instead its type was cell.
Error in welchparse>parse_inputs (line 80)
validateattributes(y1,{'single','double'}, {'finite','nonnan'},'pwelch','x')
Error in welchparse (line 31)
Error in welch (line 43)
Error in mscohere (line 161)
[varargout{1:nargout}] = welch({x,y},esttype,inputArgs{:});
80 validateattributes(y1,{'single','double'}, {'finite','nonnan'},'pwelch','x')
So clearly you call mscohere with data in some other format.
If you are new to matlab I might be so bold as to suggest that you walk through the on-ramp material/course/presentations. It is designed to get people up and running as fast and efficiently as possible.

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Answers (1)

Aditya Jha
Aditya Jha on 16 Jan 2023
mscohere does not accept cell-arrays as input.
For more details about valid data types to mscohere, please refer to the following documentation:


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