Help with csv data preparation
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I applied the code:
if true
    % code
load file
fid = fopen('data.csv', 'r');
FC = textscan(fid, '%s', 'Delimiter', '\n');
fclose(fid);
FC = FC{1};
% extract data
for n = 1:length(FC)
Data{n, 1:3} = sscanf(FC{n}, '%s %d %f');
end
end
Still I have problems extracting values. Applying that CODES up before the "for" loop, matlab gives me cell:
'0000, 0,0 '
'0001, 1,0.2 '
'0010, 0,0 '
'0011, 0,0 '
'0100, 1,0.2 '
'0101, 0,0 '
'0110, 0,0 '
'0111, 0,0 '
'1000, 1,0.2 '
'1001, 0,0 '
'1010, 1,0.2 '
'1011, 0,0 ' and what I want is that I transform this into different columns as follows:
| 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 0 | 1 | 1 | 0.2 |
How could I do this?
4 Kommentare
  Walter Roberson
      
      
 am 11 Nov. 2013
				Please show us a sample input line as known to excel, and tell us what datatype excel thinks the first column is.
Akzeptierte Antwort
  Simon
      
 am 12 Nov. 2013
        Hi!
In your cell array the second and third entry of every line are numeric values already. You may split the string in the first cell of every line like
[a, b, c, d] = strread(Data{1, 1}, '%1d%1d%1d%1d');
2 Kommentare
  Simon
      
 am 12 Nov. 2013
				Hi!
What code did you run? What is your input (in my case Data{1, 1})? What is the error message?
It seems you have an error converting to your Data cell array. Try
fid = fopen('data.csv', 'r');
FC = textscan(fid, '%s', 'Delimiter', '\n');
fclose(fid);
FC = FC{1};
% remove ',', replace with ' '
FC = regexprep(FC, ',', ' ');
% extract data
for n = 1:length(FC)
Data{n, 1} = sscanf(FC{n}, '%s', 1);
Data{n, 2} = sscanf(FC{n}, '%*s %d');
Data{n, 3} = sscanf(FC{n}, '%*s %*d %f');
end
Of course you will get an error if you have '[]' around your first entry in every row. You should have written that before! Remove them first.
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