Convert 1x1 cell to 1x1 double

Hi,

I am trying to convert a 1x1 cell to 1x1 double using str2double. An explanation is as follows:

M.c = str2double(T(test, x))

M: 1x1 struct with a field c

T: table

test: row number in T

x: column number in T

Matlab version: R2020b

PS: The individual values in (test,x) are of type double but since they are inside a table they are converted to 1x1 cell type and therefore I have to convert it to 1x1 double array.

Problem: I am getting 'NaN' when I try to set the value of M.c. I am expecting a double to be set there since the program is structured in that way.

Thank you.

[dpb]

Attach a small subset of the table T as .mat file...we can't see the needed details from here.

Answer 1

[Mario Malic]

Hi, depending on the contents in the cell array, here are two examples. Mind the indexing into cell, you should use curly brackets to get the "contents" of the cell.

% Example for a character array with single element
a = '3.4';
str2num(a)
ans =
    3.4000
str2double(a)
ans =
    3.4000
% Example for character array with multiple elements
a ='3.4, 5.2';
str2double(a)
ans =
   NaN
str2num(a)
ans =
    3.4000    5.2000

[Shrinish Donde]

Thanks Mario !