mscohere function with two cell arrays

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]

Hi, this would be pure guesswork, without a data sample.

[Bjorn Gustavsson]

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               

mscohere(xCell1,xCell2) 
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)
    parse_inputs(x1,esttype,varargin{:});
Error in welch (line 43)
    welchparse(x,esttype,varargin{:});
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.

Answer 1

[Aditya Jha]

Hi!

‘mscohere’ does not accept cell-arrays as input.

For more details about valid data types to mscohere, please refer to the following documentation: https://www.mathworks.com/help/signal/ref/mscohere.html