slitting a number into year, mont and day
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I have a column(a(:,1)) containing numbers like;
19900101
19900102
19900103
19900104
19900105
19900106
19900107
19900108
19900109
19900110
The numbers represent year(1:4), month(5:6) and daynumber(7:8).
How to I split these numbers into year, number of month and daynumber?
Thanks
Johannes
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답변 (2개)
Walter Roberson
2013년 4월 19일
years = floor( a(:,1) ./ 10000);
months = mod( floor( a(:,1) ./ 100 ), 100);
days = mod( a(:,1), 100 );
댓글 수: 1
Jan
2013년 4월 22일
I'd prefer this method, because it does not convert the numbers to strings and back to numbers again.
Daniel Shub
2013년 4월 19일
It is not clear what your "a" is. If it is a numeric array
a = [ 19900101
19900102
19900103
19900104
19900105
19900106
19900107
19900108
19900109
19900110
];
you need to convert it to a char array
a = int2str(a);
Obviously if it is already a char array, you do not need to convert it. You then need to grab the sections you want, and possibly convert them back into numbers ...
year = str2num(a(:, 1:4));
month = str2num(a(:, 5:6));
day = str2num(a(:, 7:8));
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