Hi everybody,

I have a 4*4 matrix WD of wind data of the following form:

> WD
$date
[1] "07.07.2010" "07.07.2010" "07.07.2010" "07.07.2010"

$time
[1] "00:00:00" "00:10:00" "00:20:00" "00:30:00"

$CH1Avg
[1] 3.02 3.04 2.94 2.71

I would like to transform the date and time strings in usable numbers for plotting :

-          Transform "07.07.2010" in 07*24 + 07*31*24   for example

-          Transform the string of type "12:15:20" in a number equals to 12+15/60+20/3600

I would hence need a function able to look for defined patterns in a list, like aa:bb:cc and evaluate aa+bb/60+cc/3600.

Anyone has a idea?

Thanks a lot!
Cheers

Olivier Coupiac

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