Convert vector to cell array
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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
Jan
2013-6-18
It is not clear what this exactly means:
"Cell array of data series names" in the form nn.n
Matt Kindig
2013-6-18
What is the desired output for datanames?
采纳的回答
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
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('.', '_');
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