Create a Matrix from a cell array
显示 更早的评论
Hello
I want to create a matrix from a cell with the below:
cell(1,1)='Value,Rooms,Cleanliness,Service' cell(1,2)='2 of 5 stars,2 of 5 stars,4 of 5 stars,2 of 5 stars' cell(2,1)='Value,Location,Sleep Quality,Rooms,Cleanliness,Service' cell(2,2)='5 of 5 stars,5 of 5 stars,5 of 5 stars,5 of 5 stars,5 of 5 stars,5 of 5 stars'
cell(3,1)='Location,Rooms,Cleanliness,Service' cell(3,2)='4 of 5 stars,1 of 5 stars,3 of 5 stars,4 of 5 stars'
etc
I want to combine each characteristic for example location with each rating for example in cell(2,2) is 5 in cell(3,2) is 4. This ratings should be at the same column. If the rating doesn't appear for example the location in the first raw the matrix will take the number 10.
Do you have any ideas?
Thank you.
1 个评论
采纳的回答
Guillaume
2016-9-22
Your post is not very clear, not help with the fact that your example does not use valid matlab syntax. Possibly, that's what you want:
ratings = {'Value,Rooms,Cleanliness,Service', '2 of 5 stars,2 of 5 stars,4 of 5 stars,2 of 5 stars'; ...
'Value,Location,Sleep Quality,Rooms,Cleanliness,Service', '5 of 5 stars,5 of 5 stars,5 of 5 stars,5 of 5 stars,5 of 5 stars,5 of 5 stars'; ...
'Location,Rooms,Cleanliness,Service', '4 of 5 stars,1 of 5 stars,3 of 5 stars,4 of 5 stars'}
%The above is not a very useful way to store data, so split it:
ratinglabels = cellfun(@(r) strsplit(r, ','), ratings(:, 1), 'UniformOutput', false);
ratingscores = cellfun(@(r) str2double(regexp(r, '\d+(?= of)', 'match')), ratings(:, 2), 'UniformOutput', false); %extract score
%get unique labels, and mapping between original array and label column:
[labels, ~, destinationcolumn] = unique([ratinglabels{:}]);
%get row destination for each score:
destinationrow = repelem(1:size(ratings, 1), cellfun(@numel, ratingscores))';
%create output matrix and fill with score. Default value if score is missing is NaN:
scores = nan(size(ratings, 1), numel(labels));
scores(sub2ind(size(scores), destinationrow, destinationcolumn)) = [ratingscores{:}];
%pretty display:
scores = array2table(scores, 'VariableNames', matlab.lang.makeValidName(labels))
%export to excel:
writetable(scores, 'someexcelfile.xlsx');
更多回答（1 个）
Image Analyst
2016-9-22
0 个投票
A 2-D cell array (like you have) is a matrix. It's a matrix of cells. Just define your cells differently if you want the things in between the commas to be in different cells.
1 个评论
Thimiod Athan
2016-9-22
编辑：Thimiod Athan
2016-9-22
My mistake, I want to create a matrix in excel. The cell is like the picture
类别
在 帮助中心 和 File Exchange 中查找有关 Data Type Conversion 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
