Extract numbers from mixed string.

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Jeong_evolution
Jeong_evolution 2016-10-29
评论： Jeong_evolution 2016-11-3
Str = ['<data seq="0"<temp8.0</temp<data seq="1"<temp6.9</temp'];
I want to extract temp (8.0 & 6.9)
I want to express in workspace
-------------------------------
tem_1 = 8.0
tem_2 = 6.9
-------------------------------

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采纳的回答

Marc
Marc 2016-10-29
There are probably better ways to do this but if this is always going to be the string and only the numbers are going to change, you can use strfind() to get the locations of "temp"
Something like this:
xStr = strfind(Str, 'temp');
temp_1 = str2double(Str(xStr(1)+4:xStr(1)+6));
You should then be able to figure out temp_2....

更多回答（1 个）

per isakson
per isakson 2016-10-29
编辑：per isakson 2016-10-29
Use regexp to match strings consisting of (digit,period,digit), and which follow after the string "temp"
Str = ['<data seq="0"<temp8.0</temp<data seq="1"<temp6.9</temp'];
cac = regexp( Str, '(?<=temp)\d\.\d', 'match' );
temp_2 = str2double(cac{2});
temp_1 = str2double(cac{1});

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