Naming Excel Sheet with xlswrite.

I am looking to use xlswrite to export a matrix to excel. For the naming convention, I want to name it based on a variable (ex: x=30) so that the excel file would be named "Rule30.xls".

I've tried using xlswrite(FILE,ARRAY) as xlswrite( ('Rule%d',x) , matrix), similar to how I'd use fprintf.

Here would be a quick code example:

x=30            % Defines x
matrix = eye(x) % Creates an identity matrix that's x by x
xlswrite(('Rule%d',x),matrix) % Writes 'matrix' as an excel file titled 'Rule30.xls'

Answer 1

[Fangjun Jiang]

FileName=['Rule',num2str(x)]

FileName=sprintf('Rule%d',x)

[Samuel Brewton]

Both work perfect, thanks so much!