Convert vector to cell array

15 次查看（过去 30 天）
Austin
Austin 2013-6-18
I am trying to use this
xDataNumbers = [2.5 5 7 8 11.5]
as the datanames for a fints
tsobj = fints(dates, data, datanames)
so - the question is: How do I convert a vector with numbers into a "Cell array of data series names" in the form nn.n?
Thanks. A
  3 个评论
显示 1更早的评论
Austin
Austin 2013-6-18
编辑：Austin 2013-6-18
I have an array
xDataNumbers = [3.5 7 9.2 11.5 ...]
that I want to use as datanames for the third parameter in
tsobj = fints(dates, data, datanames)
The format should have max width of 5 with 1 decimal place (%5.1f I think). Another issue is that the datanames cant start with a number, so it's ok to prepend something like 'S: '
Oh, wait, can the dataname strings even contain any numbers??
Matt Kindig
Matt Kindig 2013-6-18
What is the desired output for datanames?

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Kye Taylor
Kye Taylor 2013-6-18
The third input to the fints function is a cell array of strings that can be valid MATLAB identifiers. That is, the strings cannot start with numbers and can only contain letters, numbers, and the underscore. As a workaround, you could do this
% convert numeric array to cell, and convert all contents to strings
dataNamesInput = cellfun(@num2str,num2cell(xDataNumbers(:)),'uniformoutput',false);
% make sure first letter is not numeric (it will be 'x')
dataNamesInput = cellfun(@(s)['x',s],dataNamesInput,'uniformoutput',false);
% remove periods and replace with underscores
dataNamesInput = regexprep(dataNamesInput,'\.','_');
and use dataNamesInput as the third input. Someone may suggest using the genvarnames function, but it will replace periods with '0x2'. You may prefer that. In any case, you'll still need the first line of code above that converts numeric array to cell of strings.
  1 个评论
Jan
Jan 2013-6-19
This:
dataNamesInput = cellfun(@(s)['x',s],dataNamesInput, 'uniformoutput',false);
dataNamesInput = regexprep(dataNamesInput,'\.','_');
can be done faster by:
dataNamesInput = strcat('x', dataNamesInput);
dataNamesInput = strrep('.', '_');

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 MATLAB 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by