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How can I do the cumulative?

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Pul
Pul on 25 Aug 2021
Commented: Star Strider on 26 Aug 2021
Hello everyone,
I should calculate the cumulative of daily data.
Then I should do a monthly cumulative and finally, the yearly average.
Can anyone help me please?
Thank you.
  4 Comments
Pul
Pul on 25 Aug 2021
Yes, thank you!

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Accepted Answer

Star Strider
Star Strider on 25 Aug 2021
The retime function is your friend foir this type of problem —
LD = load('giulia_TT[1].mat');
giulia_TT = LD.giulia_TT
giulia_TT = 136440×6 timetable
Time Var1 Var2 Var3 Var4 Var5 Var6 ____________________ ____ ____ _____ ____ ____ _____ 10-Dec-1997 09:00:00 310 1 -27 43 NaN 712.9 10-Dec-1997 10:00:00 300 1 -28.4 47 NaN 712.7 10-Dec-1997 11:00:00 260 4 -30.3 48 NaN 712.8 10-Dec-1997 12:00:00 240 4 -32.4 49 NaN 712.6 10-Dec-1997 13:00:00 220 4 -34.5 50 NaN 712.3 10-Dec-1997 14:00:00 180 4 -31.4 52 NaN 712.3 10-Dec-1997 15:00:00 220 1 -31.3 53 NaN 712.1 10-Dec-1997 16:00:00 200 2 -29.9 53 NaN 712 10-Dec-1997 17:00:00 180 3 -29.4 54 NaN 711.7 10-Dec-1997 18:00:00 200 2 -29.1 54 NaN 711.5 10-Dec-1997 19:00:00 210 3 -28.9 54 NaN 711.4 10-Dec-1997 20:00:00 180 3 -28.7 54 NaN 711.4 10-Dec-1997 21:00:00 210 1 -28.3 54 NaN 711.3 10-Dec-1997 22:00:00 250 2 -28.1 55 NaN 711.3 10-Dec-1997 23:00:00 270 3 -28.2 55 NaN 711.4 11-Dec-1997 00:00:00 270 3 -27.9 55 NaN 711.3
RTds_giulia_TT = retime(giulia_TT,'daily', @(x)sum(x,'omitnan')) % Daily Sum
RTds_giulia_TT = 7722×6 timetable
Time Var1 Var2 Var3 Var4 Var5 Var6 ___________ ____ ____ ______ ____ ____ _____ 10-Dec-1997 3430 38 -445.9 775 0 10680 11-Dec-1997 4970 88 -708.9 1304 0 17079 12-Dec-1997 4770 190 -718.3 1265 0 17107 13-Dec-1997 4820 257 -593.6 1329 0 17118 14-Dec-1997 5130 223 -625.3 1276 0 17148 15-Dec-1997 6160 122 -610.4 1231 0 17301 16-Dec-1997 5330 282 -612.3 1254 0 17229 17-Dec-1997 4840 220 -631.3 1295 0 17226 18-Dec-1997 5210 171 -638.5 1294 0 17181 19-Dec-1997 5500 192 -662.9 1233 0 17175 20-Dec-1997 5900 149 -629.9 1242 0 17164 21-Dec-1997 5020 153 -615.8 1273 0 17345 22-Dec-1997 5500 331 -555.8 1315 0 17371 23-Dec-1997 5020 274 -579.6 1306 0 17275 24-Dec-1997 5090 220 -541.7 1338 0 17406 25-Dec-1997 5390 325 -542.8 1293 0 17477
RTms_giulia_TT = retime(giulia_TT,'monthly', @(x)sum(x,'omitnan')) % Daily Sum
RTms_giulia_TT = 254×6 timetable
Time Var1 Var2 Var3 Var4 Var5 Var6 ___________ __________ ____ _______ _____ _____ __________ 01-Dec-1997 1.1479e+05 4878 -12777 28071 0 3.732e+05 01-Jan-1998 1.6505e+05 4790 -20623 38684 0 5.3087e+05 01-Feb-1998 1.5418e+05 7953 -22694 35043 0 4.7948e+05 01-Mar-1998 1.5895e+05 8202 -16416 53622 0 5.0993e+05 01-Apr-1998 19780 1272 -1792.9 7235 0 64240 01-May-1998 0 0 0 0 0 0 01-Jun-1998 0 0 0 0 0 0 01-Jul-1998 0 0 0 0 0 0 01-Aug-1998 0 0 0 0 0 0 01-Sep-1998 0 0 0 0 0 0 01-Oct-1998 0 0 0 0 0 0 01-Nov-1998 15670 735 -2075.2 4977 1151 52008 01-Dec-1998 1.5947e+05 6713 -18695 51606 12188 5.3271e+05 01-Jan-1999 1.4317e+05 6176 -17875 55303 13262 5.3282e+05 01-Feb-1999 1.4437e+05 6296 -26016 40696 12270 4.8046e+05 01-Mar-1999 1.5873e+05 7751 -38321 34910 14902 5.2862e+05
RTym_giulia_TT = retime(giulia_TT,'yearly', @(x)mean(x,'omitnan')) % Yearly Average
RTym_giulia_TT = 23×6 timetable
Time Var1 Var2 Var3 Var4 Var5 Var6 ___________ ______ ______ _______ ______ ______ ______ 01-Jan-1997 221.18 9.3988 -24.618 54.087 NaN 719.08 01-Jan-1998 221.12 9.739 -31.197 62.76 16.347 712.16 01-Jan-1999 205.71 9.868 -38.546 60.084 27.833 709.86 01-Jan-2000 206.22 10.858 -40.587 58.32 42.214 712.57 01-Jan-2001 209.39 9.7574 -40.086 57.345 49.112 711.97 01-Jan-2002 209.49 11.56 -46.325 50.188 41.987 714.63 01-Jan-2003 204.8 13.667 -45.886 51.518 58.09 713.5 01-Jan-2004 216.18 10.512 -44.052 53.394 68.275 697.74 01-Jan-2005 212.52 11.821 -41.702 55.45 76.23 689.32 01-Jan-2006 209.99 10.875 -40.048 57.513 98.428 721.18 01-Jan-2007 210.15 9.7131 -39.308 58.263 96.873 747.83 01-Jan-2008 215.82 11.908 -40.737 56.545 73.186 711.08 01-Jan-2009 216.33 12.638 -41.397 56.284 78.298 711.96 01-Jan-2010 226.65 11.077 -47.59 49.562 75.023 710.05 01-Jan-2011 213.5 12.444 -44.61 54.425 90.797 713.36 01-Jan-2012 218.74 11.087 -41.803 56.673 101.93 713.02
Experiment to get different results.
.
  10 Comments
Star Strider
Star Strider on 26 Aug 2021
As always, my pleasure!
.

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