Convert 1x1 cell to 1x1 double

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Shrinish Donde
Shrinish Donde 2021-1-18
编辑： Mario Malic 2021-1-19
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.
  1 个评论
dpb
dpb 2021-1-18
Attach a small subset of the table T as .mat file...we can't see the needed details from here.

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Mario Malic
Mario Malic 2021-1-18
编辑：Mario Malic 2021-1-19
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

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