extract py.list data in matlab to numeric

Dear All,

I used [results] = pyrunfile(py_path,"x"); to extract my python simulation data into matlab. it is sucessfull done, however the type of data is py.list, then i used cell and cell2mat in order to get x array as numeric. However it always give me weeor that :

Error using cell2mat

CELL2MAT does not support cell arrays containing cell arrays or objects.

also i used double to change into numeric but i get this error:

Error using py.list/double

Conversion of Python element at position 1 to type 'double' failed. All Python elements must be convertible as scalar to the requested type.

the varibale in my python code is just a simple timeseries data, i will be thankful if you kindly help to find the solution.here is the format: val =

[array([865.18658447, 865.50640869, 865.8380127 , ..., 836.89562988,

836.19567871, 835.52642822])]

Use string, double or cell function to convert to a MATLAB array.

Answer 1

[Luca Ferro]

let's say that pyList is your list:

cellPyList=cell(pyList); %converts to cell array of form  {[1]},{[2]},...
arrPyList=[cellPyList{:}]; %converts to numeric array of form [1,2,...]