Tag: POSIXt

• February 20, 2011

  Converting MATLAB and R date and time values

  For some unknown reason, MATLAB codes its date/time values as the number of elapsed days starting from January 1 in the year 0000. R uses the equally arbitrary, but much more widespread POSIX/Unix epoch as a reference for time keeping, so that R’s POSIX time values are stored internally as the elapsed seconds since 00:00…