poster
2019-12-14, 20:13
如何在Matlab中向量化strsplit函数，使其运行更快？谢谢
function parts = strsplit(splitstr, str) splitlen = length(splitstr); k = strfind(str, splitstr); parts = cell(length(k)+1, 1); s = 1; if isempty(k) parts{1} = str; return end for i=1:length(k) parts{i} = str(s : k(i)-1); s = k(i) + splitlen ; end parts{end} = str((k(end) + splitlen) : end);
回答：
您可以通过调用TEXTSCAN (http://www.mathworks.com/help/techdoc/ref/textscan.html)来替换函数。
str = 'testxyztest2xyztest3'; splitStr = 'xyz'; out = textscan(str,'%s','delimiter',splitStr,'multipleDelimsAsOne',1) out{1} ans = 'test' 'test2' 'test3'
更多&回答... (https://stackoverflow.com/questions/5286420)
function parts = strsplit(splitstr, str) splitlen = length(splitstr); k = strfind(str, splitstr); parts = cell(length(k)+1, 1); s = 1; if isempty(k) parts{1} = str; return end for i=1:length(k) parts{i} = str(s : k(i)-1); s = k(i) + splitlen ; end parts{end} = str((k(end) + splitlen) : end);
回答：
您可以通过调用TEXTSCAN (http://www.mathworks.com/help/techdoc/ref/textscan.html)来替换函数。
str = 'testxyztest2xyztest3'; splitStr = 'xyz'; out = textscan(str,'%s','delimiter',splitStr,'multipleDelimsAsOne',1) out{1} ans = 'test' 'test2' 'test3'
更多&回答... (https://stackoverflow.com/questions/5286420)