Converting data from a non-R format to R's internal format is a common place to run into errors. Use the str() function to examine any data you read in to make sure R is seeing it the way that you expect. If that looks ok try using summary() or plot() for more checks that the data import went as expected. Do this before doing any other analysis on the data and you will avoid a lot of errors later on.
E.g., str(dat) shows that column "A" is character, as are several other columns that you probably mean to be numeric, which would account for the error message that you got. (The output of dput() got mangled a bit in the mail (long lines got broken in inappropriate places), but I think I got it read in corrrectly.) > str(dat) 'data.frame': 100 obs. of 22 variables: $ Date: chr "1-Jan-61" "2-Jan-61" "3-Jan-61" "4-Jan-61" ... $ A : chr "0.00" "6.10" "0.00" "0.00" ... $ B : num 1.27 9.144 0.508 0 0 ... $ C : num 8.13 94.74 1.27 0 0 ... $ D : num NA NA NA NA NA NA NA NA NA NA ... $ E : num 0.25 15.49 0 0 0 ... $ F : num NA NA NA NA NA NA NA NA NA NA ... $ G : num 0 6.1 0 0 0 0 0 0 0 0 ... $ H : num NA NA NA NA NA NA NA NA NA NA ... $ I : chr NA NA NA NA ... $ J : chr "0.00" "4.32" "0.00" "0.00" ... $ K : chr "0.00" "10.67" "0.00" "0.00" ... $ L : chr "0.00" "5.33" "6.60" "0.00" ... $ M : chr NA NA NA NA ... $ NA. : chr NA NA NA NA ... $ X0 : chr NA NA NA NA ... $ P : chr NA NA NA NA ... $ Q : num NA NA NA NA NA NA NA NA NA NA ... $ R : num NA NA NA NA NA NA NA NA NA NA ... $ S : chr "0.00" "4.83" "0.00" "0.00" ... $ T : chr NA NA NA NA ... $ U : num NA NA NA NA NA NA NA NA NA NA ... Bill Dunlap TIBCO Software wdunlap tibco.com > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On > Behalf > Of eliza botto > Sent: Monday, March 31, 2014 12:12 PM > To: ruipbarra...@sapo.pt; r-help@r-project.org > Subject: Re: [R] monthly sum > > Dear Rui, > Here is the complete data. > > dput(dat) > structure(list(Date = c("1-Jan-61", "2-Jan-61", "3-Jan-61", "4-Jan-61", > "5-Jan-61", "6-Jan- > 61", "7-Jan-61", "8-Jan-61", "9-Jan-61", "10-Jan-61", "11-Jan-61", > "12-Jan-61", "13-Jan- > 61", "14-Jan-61", "15-Jan-61", "16-Jan-61", "17-Jan-61", "18-Jan-61", > "19-Jan-61", "20- > Jan-61", "21-Jan-61", "22-Jan-61", "23-Jan-61", "24-Jan-61", "25-Jan-61", > "26-Jan-61", > "27-Jan-61", "28-Jan-61", "29-Jan-61", "30-Jan-61", "31-Jan-61", "1-Feb-61", > "2-Feb-61", > "3-Feb-61", "4-Feb-61", "5-Feb-61", "6-Feb-61", "7-Feb-61", "8-Feb-61", > "9-Feb-61", "10- > Feb-61", "11-Feb-61", "12-Feb-61", "13-Feb-61", "14-Feb-61", "15-Feb-61", > "16-Feb-61", > "17-Feb-61", "18-Feb-61", "19-Feb-61", "20-Feb-61", "21-Feb-61", "22-Feb-61", > "23-Feb- > 61", "24-Feb-61", "25-Feb-61", "26-Feb-61", "27-Feb-61", "28-Feb-61", > "1-Mar-61", "2- > Mar-61", "3-Mar-61", "4-Mar-61", "5-Mar-61", "6-Mar-61", "7-Mar-61", > "8-Mar-61", "9- > Mar-61", "10-Mar-61", "11-Mar-61", "12-Mar-61", "13-Mar-61", "14-Mar-61", > "15-Mar- > 61", "16-Mar-61", "17-Mar-61", "18-! > Mar-61", "19-Mar-61", "20-Mar-61", "21-Mar-61", "22-Mar-61", "23-Mar-61", > "24-Mar- > 61", "25-Mar-61", "26-Mar-61", "27-Mar-61", "28-Mar-61", "29-Mar-61", > "30-Mar-61", > "31-Mar-61", "1-Apr-61", "2-Apr-61", "3-Apr-61", "4-Apr-61", "5-Apr-61", > "6-Apr-61", "7- > Apr-61", "8-Apr-61", "9-Apr-61", "10-Apr-61"), A = c("0.00", "6.10", "0.00", > "0.00", "0.00", > "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", > "0.00", "0.00", > "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "1.78", "12.95", > "25.91", "0.00", > "0.51", "34.04", "3.30", "19.30", "0.76", "13.97", "3.81", "18.29", "9.14", > "0.00", "0.00", > "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", > "6.86", "0.00", > "6.86", "0.00", "0.00", "0.00", "1.52", "0.00", "0.00", "0.00", "0.00", > "0.00", "0.00", > "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "5.84", > "0.00", "0.00", > "0.00", "0.00", "0.00", "9.65", "0.00", "0.00", "37.08", "0.00", "0.00", > "0.00", "0.00", > "19.05", "0.00", "0! > .00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "18.29", > "12.45", "11.94", "0.00", "0.00", "0.00", "0.00", "9.40"), B = c(1.27, > 9.144, 0.508, 0, 0, 0, > 0, 0, 1.27, 4.064, 1.016, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2.032, 15.494, > 36.576, 6.858, > 1.778, 76.2, 13.97, 32.512, 6.604, 32.258, 3.556, 15.24, 11.176, 2.794, > 7.366, 0, 0, 0, 0, > 0, 0, 0, 0, 0, 4.826, 0.508, 5.588, 0, 0, 0, 0, 0.254, 0, 0, 0, 0, 0, 0, 0, > 0, 5.588, 0, 0, 0, 0, > 4.064, 2.794, 2.54, 0, 0, 0, 9.906, 0, 0, 30.734, 0, 0, 0, 0, 32.258, 5.08, > 0, 0, 0, 0, 0, 0, 0, > 2.54, 17.018, 7.112, 11.43, 0, 2.54, 0, 0, 12.954), C = c(8.128, 94.742, > 1.27, 0, 0, 0, 0, 0, > 0, 4.826, 0, 1.27, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3.556, 1.016, 8.128, 0, > 0.762, 62.738, 19.05, > 32.512, 15.24, 33.02, 2.032, 16.256, 2.54, 2.54, 5.842, 1.27, 0, 0, 0, 0, 0, > 0, 0, 0, 6.858, > 1.016, 6.604, 0, 0, 0, 0, 1.524, 0, 0, 0, 0, 0, 0, 0, 0, 6.096, 0, 0, 0, 0, > 0, 0, 0, 0, 0, 0, 0, 0, > 10.668, 7.62, 2.54, 0, 0, 0, 13.462, 8.636, 0, 0, 0, 0, 0, 0, 0, 0, 9.652, > 1.778, 2.54, 0, 0, 0, > 0, 4.064), D = c(NA_real_, NA_real! > _, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_), ! > E = c(0.25, 15.49, 0, 0, 0, 0, 0, 0, 0.25, 0.76, 0.76, 0, 0, 0, 0, > 0, 0, 0, 0, 0, 0, 0, 0, 2.03, 10.41, 32, 2.29, 2.54, 66.29, 10.67, > 29.97, 3.81, 23.88, 5.08, > 16.76, 12.19, 2.54, 5.33, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7.37, 0, 10.41, 0, > 0, 0, 0.25, 0, 0, 0, 0, > 0, 0, 0, 0, 0, 2.29, 0, 0, 0, 0, 5.08, 0.51, 0, 0, 0, 0, 10.16, 0, 0, > 28.7, 0, 0, 0, 0.51, 19.81, > 1.02, 0, 0, 0, 0, 0, 0, 0, 2.54, 19.81, 5.59, 12.45, 0.51, 0, 0, 0, > 11.18), F = c(NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_,! > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_ ), G = c(0, 6.1, 0, 0, 0, 0, 0, 0, > 0, 0, 0, 0, 0, 0, 0, > 0, 0, 0, 0, 0, 0, 0, 0, 1.78, 12.95, 25.91, 0, 0.51, 34.04, 3.3, > 19.3, 0.76, 13.97, 3.81, > 18.29, 9.14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6.86, 0, 6.86, 0, 0, 0, > 1.52, 0, 0, 0, 0, 0, 0, 0, > 0, 0, 0, 0, 0, 0, 0, 5.84, 0, 0, 0, 0, 0, 9.65, 0, 0, 37.08, 0, 0, 0, 0, > 19.05, 0, 0, 0, 0, 0, 0, 0, > 0, 0, 18.29, 12.45, 11.94, 0, 0, 0, 0, 9.4), H = c(NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, ! > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_rea > l_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_), I = c(NA_character_, > NA_character_, > NA_character_, NA_character_, NA_character_, NA_! > character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character! > _, NA_character_, NA_character_, NA_character_, NA_character_, NA_ > character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_), J = > c("0.00", "4.32", > "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "5.33", "0.00", > "0.00", "0.00", > "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", > "0.00", "1.78", > "0.25", "11.18", "0.00", "0.00", "63.75", "23.11", "11.18", "3.05", > "5.59", "0.00", > "2.03", "0.25", "4.32", "10.16", "0.00", "0.00", "0.00", "0.00", "0.00", > "0.00", "0.00", > "0.00", "0.00", "0.76", "0.00", "6.10", "0.00", "0.00", "0.00", "0.00", > "0.00", "0.00", > "0.00", "0.00", "0.00", "0.00", "0.00! > ", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", > "0.00", "0.00", "0.00", > "0.00", "0.00", "0.00", "0.00", "4.83", "19.81", "0.00", "0.00", "0.00", > "0.00", "8.89", > "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "8.38", > "4.83", "0.00", > "0.76", "0.00", "0.00", "0.00", "0.00", "0.00"), K = c("0.00", "10.67", > "0.00", "0.00", > "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", > "0.00", "0.00", > "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "1.27", > "0.00", "11.18", > "0.00", "0.00", "53.59", "28.70", "19.81", "0.51", "15.49", "1.78", > "2.03", "0.25", > "1.78", "2.54", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", > "0.00", "0.00", > "0.00", "0.00", "3.56", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", > "0.00", "0.00", > "1.27", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", > "0.00", "0.00", > "0.00", "0.00", "0.00", "0.00", "0.00", "0.00",! > "0.00", "0.00", "25.40", "0.00", "0.00", "0.00", "0.00", "15.49", > "9.40", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "2.03", > "11.94", "2.29", > "0.00", "0.00", "0.00", "0.00", "0.00", "9.91"), L = c("0.00", "5.33", > "6.60", "0.00", > "0.00", "0.00", "0.00", "0.00", "0.00", "2.79", "0.00", "0.00", "0.00", > "0.00", "0.00", > "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", > "0.00", "5.08", > "0.00", "0.00", "38.86", "24.13", "14.99", "0.00", "13.72", "3.05", > "3.05", "0.00", > "0.00", "6.35", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", > "0.00", "0.00", > "2.29", "0.00", "1.52", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", > "0.00", "0.00", > "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", > "0.00", "0.00", > "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "4.06", "5.08", > "0.00", "0.00", > "0.00", "8.89", "43.69", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", > "0.00", "0.00", > "4.06", "6.60", "4.06", "0.00", "0.00", "0.00", "0.! > 00", "0.00", "6.86"), M = c(NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, ! > NA_character_, NA_character_, NA_character_, NA_character_, NA_cha > racter_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_), NA. = c(NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_char! > acter_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_ch! > aracter_, NA_character_, NA_character_, NA_character_, NA_characte > r_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, > NA_character_, NA_character_, NA_character_), X0 = c(NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, ! > NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_), P = c(NA_character_, NA_character_, > NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_c! > haracter_, NA_character_, NA_character_, NA_character_, NA_charact > er_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_charac! > ter_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_), Q = > c(NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_rea! > l_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA > _real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_), R = > c(NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_r! > eal_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_), S > = c("0.00", > "4.83", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.51", > "0.00", "0.00", > "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", > "0.00", "0.00", > "0.00", "0.00", "14.73", "4.32", "3.56", "57.91", "15.24", "28.45", > "10.16", "33.02", > "5.08", "9.14", "4.32", "9.65", "8.38", "12.70", "0.00", "0.00", > "0.00", "0.00", "9.14", > "1.02", "0.00", "0.00", "4.57", "0.00", "7.62", "0.00", "0.00", "0.00", > "0.00", "3.05", > "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.76", > "0.00", "0.0! > 0", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "0.00" > , "0.00", "0.00", "2.54", "7.11", "5.59", "0.00", "0.00", "0.00", > "10.16", "0.00", "0.00", > "0.00", "0.00", "0.00", "0.00", "0.00", "0.00", "2.29", "10.67", "4.06", > "0.00", "0.00", > "0.00", "0.00", "9.14", "3.56"), T = c(NA_character_, NA_character_, > NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_ch! > aracter_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_, NA_character_, NA_character_, > NA_character_, NA_character_, NA_character_), U = c(NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, ! > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_ > real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, > NA_real_)), .Names = c("Date", "A", "B", "C", "D", "E", "F", "G", "H", "I", > "J", "K", "L", "M", > "NA.", "X0", "P", "Q", "R", "S", "T", "U"), ! > row.names = c(NA, 100L), class = "data.frame") > Thankyou, > Eliza > > Date: Mon, 31 Mar 2014 20:04:37 +0100 > > From: ruipbarra...@sapo.pt > > To: eliza_bo...@hotmail.com; r-help@r-project.org > > Subject: Re: [R] monthly sum > > > > Hello, > > > > Sorry, but I have no idea why the error message, with me it works > > correctly. Are you sure that the four columns A, B, C and D are numeric? > > What does str(dat) say? > > > > Rui Barradas > > > > Em 31-03-2014 19:40, eliza botto escreveu: > > > Dear Rui, > > > > > > Thanks for your reply. But the command seems not to be working. I am > > > getting the following error. > > > > > > Error in FUN(X[[1L]], ...) : invalid 'type' (character) of argument > > > > > > Any idea? :( > > > > > > Thanks, > > > > > > Eliza > > > > > > > > > > Date: Mon, 31 Mar 2014 18:48:08 +0100 > > > > From: ruipbarra...@sapo.pt > > > > To: eliza_bo...@hotmail.com; r-help@r-project.org > > > > Subject: Re: [R] monthly sum > > > > > > > > Hello, > > > > > > > > Maybe the following will do. > > > > > > > > > > > > library(zoo) > > > > ym <- as.yearmon(dat$Date, "%d-%B-%y") > > > > aggregate(dat[,-1], list(ym), FUN = sum, na.rm = TRUE) > > > > > > > > > > > > Also, please use dput() to post data examples. > > > > > > > > Hope this helps, > > > > > > > > Rui Barradas > > > > > > > > Em 31-03-2014 18:31, eliza botto escreveu: > > > > > Dear useRs, > > > > > I have the data of following format. I have only pasted some part > > > of the data. The data starts from 1961 and ends up in december 1987. > > > > > > > > > > dat <- read.table(text="Date A B C D1-Jan-61 0.00 1.27 8.128 > > > 0.252-Jan-61 6.10 9.144 94.742 15.493-Jan-61 0.00 0.508 1.27 > > > 0.004-Jan-61 0.00 0 NA 0.005-Jan-61 0.00 0 0 0.006-Jan-61 0.00 NA 0 > > > 0.007-Jan-61 0.00 0 0 0.008-Jan-61 0.00 NA 0 0.009-Jan-61 0.00 NA 0 > > > NA10-Jan-61 0.00 4.064 4.826 > > > 0.76",sep="",header=TRUE,stringsAsFactors=FALSE) > > > > > > > > > > I need to calculate the sum of each months of A,B,C and D. There > > > are NA's in each column so whenever there is NA it should be ignored. > > > > > In the end we should have a table with 12 values for each year or > > > all the for columns having dimension (12*number of years rows and 4 > > > columns). > > > > > > > > > > Thankyou very much in advance > > > > > Eliza > > > > > [[alternative HTML version deleted]] > > > > > > > > > > ______________________________________________ > > > > > R-help@r-project.org mailing list > > > > > https://stat.ethz.ch/mailman/listinfo/r-help > > > > > PLEASE do read the posting guide > > > http://www.R-project.org/posting-guide.html > > > > > and provide commented, minimal, self-contained, reproducible code. > > > > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
