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Time cell (or char) inside a double array

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Engineer
Engineer 2014-1-20
评论： Till Rahlf 2014-1-20
Hello, I have a 45x1 cell array, that I can convert to 45x8 char... the single cell is showing time, for example '09:45:46' ..
now, I would like to put this column as the first column of a double precision data array D.
I tried several things I was reading around, but I haven't found anything that could give me the right time as I see it here.
Some tips? Thanks
  2 个评论
Engineer
Engineer 2014-1-20
编辑：Engineer 2014-1-20
I get the time using getabstime function from a timeseries object...in output is a (for exapmle) 45x1 cell containing each one the time in string 09:45:43. I'd like to have the time expressed in the first column in a double precision array as it is shown above. Now, I solved the problem doing datenum(getabstime(ow86), as usual, but I'd like to have time express as above, in order to read "easily" the data

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Till Rahlf
Till Rahlf 2014-1-20
编辑：Till Rahlf 2014-1-20
which matlab release do you use?
dateCells = {'09:45:46','09:45:49'}
dateString = strjoin(dateCells, sprintf('\n'))
result = textscan(dateString, '%d:%d:%d') % for integer results
result = textscan(dateString, '%f:%f:%f') % for double results
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Engineer
Engineer 2014-1-20
Thanks..I have earlier version of Matlab, but I found strjoin in File exchange http://www.mathworks.com/matlabcentral/fileexchange/31862-strjoin.
However, I'd like to have the cell showing the time 09:45:43 (1,1), 09:45:44 (2,1), 09:45:45 (3,1) etc. , as first column of an array that is made by double precision data in the other 4 columns...
Reading around, maybe this is not possible(?!)...I switched for the usual datenum, even if I'm not very satisfied by that!
Amit
Amit 2014-1-20
Okay the problem is the 09:45:43 is not double precision. So you cannot express it as double precision. The closest I can say you can do it 094543 which is a number.

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更多回答（1 个）

Till Rahlf
Till Rahlf 2014-1-20
What is exactly the result you expect?
Can you give an example for the cell array "dateCells "?
dateCells = {'09:45:43','09:45:44','09:45:45'}
expectedResult = ???
  2 个评论
Engineer
Engineer 2014-1-20
I would like to show/print the time in the format HH:MM:SS instead of the datenum number in this double array. Probably, as said before, this is not possible because the time is not a number
Till Rahlf
Till Rahlf 2014-1-20
Yes, it is right. The character ":" can not be represented by a double number.
Alternatively you can have numbers like Amit wrote:
result = [
094543 ...
094544 ...
094545 ...
]
Or in stead of one double time column, you could have 3, like
result = [ 09 45 43 ...
09 45 44 ...
09 45 45 ...
]
Is that solution applicable?

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