フィルターのクリア

Help with csv data preparation

1 回表示 (過去 30 日間)
FRANCISCO
FRANCISCO 2013 年 11 月 11 日
コメント済み: Simon 2013 年 11 月 12 日
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 件のコメント
Walter Roberson
Walter Roberson 2013 年 11 月 11 日
Please show us a sample input line as known to excel, and tell us what datatype excel thinks the first column is.
FRANCISCO
FRANCISCO 2013 年 11 月 12 日
My csv file is as follows, but also what I can generate without brackets [] of binary patterns:
Applying the above code, the imported data puts me in the first column in text format
I want every number in a column represent, for example:
[0000], 1,0.200
I represent:
| 0 | 0 | 0 | 0 | 1 | 0.20 |
Many thanks

サインインしてコメントする。

採用された回答

Simon
Simon 2013 年 11 月 12 日
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 件のコメント
FRANCISCO
FRANCISCO 2013 年 11 月 12 日
I run the code and it gives me error. I'm somewhat confused
Simon
Simon 2013 年 11 月 12 日
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.

サインインしてコメントする。

その他の回答 (0 件)

カテゴリ

Help Center および File ExchangeText Data Preparation についてさらに検索

製品

Community Treasure Hunt

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

Start Hunting!

Translated by