What is the simplest way to convert this string '[[x1, x2, x3], [y1, y2, y3], [& so on]]' into a matlab matrix where each item is a row, [x1,x2,x3 ; y1, y2, y3; & so on]?
4 次查看(过去 30 天)
显示 更早的评论
What is the simplest way to convert this string '[[x1, x2, x3], [y1, y2, y3], [& so on]]' into a matlab matrix where each item is a row, [x1,x2,x3 ; y1, y2, y3; & so on]? Thank you!
2 个评论
the cyclist
2017-6-23
编辑:the cyclist
2017-6-23
In the string, are x1, etc, numbers? So is an example string
'[[1,2,3],[4,5,6]]'
?
采纳的回答
Walter Roberson
2017-6-23
S = '[[x1, x2, x3], [y1, y2, y3], [&, so, on]]';
S = S(3:end-2); %get rid of leading and trailing [[ ]]
by_line = regexp(S, '],\s*\[', 'split'); %split at comma between subsections
by_item = regexp(by_line, ',\s*', 'split'); %split each subsection at comma
enmass = vertcat(by_item{:}); %reassemble cell array
output = str2double(enmass);
更多回答(1 个)
the cyclist
2017-6-23
Similar technique to Walter's:
S = '[[1,2,3],[4,5,16]]';
output = str2num(regexprep(S(3:end-2),'],[',';'));
2 个评论
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Characters and Strings 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!