how to sort data
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I have two column of datas
COLUMN1 COLUMN2
5 R
3 E
1 A
4 P
i NEED THE OUTPUT AS
1 A
3 E
4 P
5 R
CAN ANYONE TELL HOW TO PROCESS PLEASE
3 个评论
Jan
2011-9-15
Pat, please explain the input and output more descriptive. Do you have an ASCII or Excel file with two columns, or a matrix with two columns, or two column vectors? Is the output a string, another file, some characters, different variables?
Take the time to read: http://www.mathworks.com/matlabcentral/answers/797-how-do-i-write-a-good-answer-for-matlab-answers
Jan
2011-9-15
@Pat: If I'm looking on your other 30 questions, it seems, like you are not interested in answering questions for clarifications. Answering your questions would be much easier, if you take the time to explain all necessary details. Almost the half of your question do not get any answer, and you could accept two answers only. I recommended the standard usage of upper/lower-case characters before, but without impressing you.
If you do not use this forum for an efficient exchange of information, why do you use it at all?
Jan
2011-9-15
@Pat: Now the format is much nicer to read.
采纳的回答
Jan
2011-9-15
If "COLUMN1 COLUMN2 5 R 3 E 1 A 4 P" means this:
data = {5, 'R'; ...
3, 'E'; ...
1, 'A'; ...
4, 'P'};
Then you can sort it this way:
[dummy, index] = sort([data{:, 1}]);
sorted = data(index, :);
1 个评论
Jamie Smith
2015-10-17
how can this be done for much larger excel file that contains words in the first column? I need to arrange the table so that the values in the 8th column are in ascending order but in doing so keep their respective names in the first column?
更多回答（1 个）
Andrei Bobrov
2011-9-15
data = reshape({5 'R' 3 'E' 1 'A' 4 'P'},2,[])'
out = sortrows(data,1)
or
out = reshape(sortrows(data,1)',1,[])
if
data(:,1)=cellfun(@num2str,data(:,1),'un',0)
out = sortrows(data,1)
3 个评论
Jan
2011-9-15
@Andrei: You are bold. +1
Pat
2011-9-15
Andrei Bobrov
2011-9-15
out = sortrows(data,-1)
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