When fprintf, I need a return (\r\n) after each line (with inconstant number of values per line)
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- I'm doing a loop to print many lines of data in a file, and I want a return after each line. I am ok with constant number of values per line. But when the number of values per line is not constant, the format of data in the file is not correct.
E.g. use following code to print 3 values (1st line) then 4 values (2nd line) per line
if true
fprintf(File,'%s,%i,%i\r\n',DataArray{:})
end
It shows
a,1,4
b,5,8,
9
What I want is:
a,1,4
b,5,8,9
I know the problem is because I set the number of value to be 3 in the code (%s,%i,%i), so Matlab deem each line has 3 values. But how can I get the format that I need??
2 commentaires
Tom
le 26 Juin 2013
Will the data always have one string, then some number of integers? e.g. '%s %i %i' or '%s %i %i %i' and so on?
Réponse acceptée
Tom
le 26 Juin 2013
Modifié(e) : Tom
le 26 Juin 2013
Data = {'alpha', 1 , 2 , 3, 'beta' , 'gamma' , 'delta' , 4};
% find locations strings and numeric data:
str = cellfun(@ischar,Data);
num = cellfun(@isnumeric,Data);
t = num2str(str + (num*2)); %number 1 equates to string, 2 equates to numeric
formatStr = [regexprep(t,{'1','2'} , {'%s', '%i'}) ,'\r\n'];
fprintf(File,formatStr)
Plus de réponses (1)
Image Analyst
le 26 Juin 2013
How about
if length(DataArray) == 3
fprintf(File,'%s,%i,%i\r\n',DataArray{:})
else
fprintf(File,'%s,%i,%i %i\r\n',DataArray{:})
end
2 commentaires
Image Analyst
le 27 Juin 2013
In the future, it helps to put in those kind of details/requirements in the original question. Otherwise, how would we know?
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