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Creating a cell array

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Bob Sherland
Bob Sherland 2018-4-25
关闭： MATLAB Answer Bot 2021-8-20
Hi, I was wondering how to create a cell array that will hold two strings and an integer, such that
file_name=input('Please enter the file name: ', 's');
file_author=input('Please enter the file author: ', 's');
no_pages=input('Please enter the number of pages in the file: ');
and the cell array would then become as below with the first two entries as strings and the last entry (no_pages) is a double.
{file_name,file_author,no_pages}
and then how I could add downwards to this so that it would become
{file_name,file_author,no_pages;file_name,file_author,no_pages}
Where the second row is a new file with new information and I can keep adding books into this array in this manner?
Cheers, any help would be appreciated

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回答（2 个）

KSSV
KSSV 2018-4-25
N = 10 ;
Books = cell(N,1) ;
for i = 1:N
file_name=input('Please enter the file name: ', 's');
file_author=input('Please enter the file author: ', 's');
no_pages=input('Please enter the number of pages in the file: ');
Books{i} = {file_name,file_author,no_pages} ;
end
Stephen23
Stephen23 2018-4-25
编辑：Stephen23 2018-4-25
Simpler using direct allocation, and does not return nested cell arrays:
N = 10 ;
C = cell(N,3) ;
for k = 1:N
C{k,1} = input('Please enter the file name: ', 's');
C{k,2} = input('Please enter the file author: ', 's');
C{k,3} = input('Please enter the number of pages in the file: ', 's');
end
C(:,3) = str2double(C(:,3));
Using the 's' option does not evaluate whatever input the user gives, and so it much more secure, the str21double simply converts these numbers (as strings) to numeric.

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