[bug report] CDO trend does NOT take into account the spacing on the X axis.
Added by Adriano Fantini almost 5 years ago
This is a bug report. Please let me know if I should put this somewhere else.
The operator -trend does not take into account of the spacing between timesteps.
EXAMPLE:
If we have a monthly file from 1900 to 2000 the trend operator will work correctly. However, if one selects only one season (e.g. -selseas,MAM) and then calculates the trend on that, the resulting trend is 4 times higher than it should be, because the spacing between timesteps is not linear in the selected file. The spacing is:
1, 2, 3, 13, 14, 15, 25, 26, 27... etc
M, A, M, M, A, M, M, A, M... etc
but -trend assumes it is:
1, 2, 3, 4, 5, 6, 7, 8, 9... etc
Replies (2)
RE: [bug report] CDO trend does NOT take into account the spacing on the X axis. - Added by Karin Meier-Fleischer almost 5 years ago
Cross posting. See https://code.mpimet.mpg.de/issues/9124
RE: [bug report] CDO trend does NOT take into account the spacing on the X axis. - Added by Adriano Fantini almost 5 years ago
Yeah, sorry, feel free to close. I found the bug report tool only after I already posted this message.