file store different type of data

hi,

is there way by which can store different type of data such as:

ex. 234,'2005-07-21' 165 ,'2006-08-21'

I want avoid use datnum , because it is slow the running if I have huge data

thanks

Answer 1

[the cyclist]

Two things you should know:

1. You can store mixed data types in a cell array: You might start with "doc cell" to get you started looking at the documentation.
2. The datenum() function is much, MUCH faster if you use the second input argument, in which you specify the format of the strings that are going in.

[huda nawaf]

thanks,

I used

datenum({'2005-09-06'},'yyyy-MM-dd');

do u mean that?

if so, even in this case, the datenum take long time

[the cyclist]

Yes. Try this test:

d = repmat({'2005-09-06'},[100000 1]);

tic;

dn1=datenum(d); % about 23s on my machine

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tic;

dn2=datenum(d,'yyyy-mm-dd'); % about 0.5s on my machine

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