MATLAB: How to change underlying char data to double with cells

Question

Hi,

How to change underlying char data to double with cells:

The struct I have is:

roofM.materials.volumetricHeatCapacity = is a cell

roofM.materials.volumetricHeatCapacity{1} = is a char (e.g. '3456')

I want to change the char to double for futher processing.

can't seem to get it to work, any help is appreciated!

Answer 1

‘strnum’ can be used to convert data of type ‘char’ to ‘double’

So in your case you can apply this function to each element of the cell using ‘cellfun’

The following line converts your data from char to double

cellfun(@str2num, roofM.materials.volumetricHeatCapacity); 

For more information on ‘cellfun’ and ‘strnum’ refer to the following links

https://www.mathworks.com/help/matlab/ref/str2num.html

https://www.mathworks.com/help/matlab/ref/cellfun.html

Hope this helps!