How do I convert a value from a cell array into an integer?

Question

Eggo Ogge 2011-3-2

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2325-how-do-i-convert-a-value-from-a-cell-array-into-an-integer

评论： Prateek Nagvani 2019-5-20

My problem is when I read one cell from table, for example 5, I need to convert this in integer value.

I try cell2mat function, but this function converts in matrix form and when I want to multiply it, it gets matrix but I only need a scaler:

d=5 (from the table)
e=cell2mat(d)
f=e*1 there i don't get 5, I get 53.

That is a problem for me.

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

David Young 2011-3-2

Please could you show a few lines of code that illustrate the problem? It should be possible to cut and paste the code from your question into MATLAB and replicate the result.

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Matt Tearle 2011-3-2

6
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2325-how-do-i-convert-a-value-from-a-cell-array-into-an-integer#answer_3619

In addition to what David and Andreas said, I'm wondering if this table is coming from a GUI (ie a uitable) or something like that, so you're actually getting a string representation. In fact, if "5"*1 is resulting in 53, I'd bet that's the problem. Take a look in your Workspace at the class of d or type whos d in the Command Window. The solution is simple: use str2num to convert the table of strings to numbers.

As an aside, you don't need cell2mat for a single element of the table, just index in with curly braces, rather than parentheses. c(4,2) will return a single cell containing the string '5'; c{4,2} will return the contents of that cell - the string itself.