Hi Elisa, You need to check your data.? For some 'st', the data is repeated/duplicated (I am assuming, didn't check it) especially for a particular year. dat1<-read.csv("elisa.csv",sep="\t") dat1$st<- as.character(dat1$st) ?str(dat1) #'data.frame':??? 506953 obs. of? 5 variables: # $ st?????? : chr? "AGOMO" "AGOMO" "AGOMO" "AGOMO" ... # $ year???? : int? 2004 2004 2004 2004 2004 2004 2004 2004 2004 2004 ... # $ month??? : int? 1 1 1 1 1 1 1 1 1 1 ... # $ day????? : int? 1 2 3 4 5 6 7 8 9 10 ... # $ discharge: num? 6.75 7.6 5.58 5.02 4.8 ... library(reshape2) dat2<- do.call(rbind,lapply(split(dat1,list(dat1$st,dat1$year)),function(x) {x$day<-seq_along(x$day);x})) row.names(dat2)<-1:nrow(dat2) ?str(dat2) #'data.frame':??? 506953 obs. of? 5 variables: # $ st?????? : chr? "TANNU" "TANNU" "TANNU" "TANNU" ... # $ year???? : int? 1935 1935 1935 1935 1935 1935 1935 1935 1935 1935 ... # $ month??? : int? 1 1 1 1 1 1 1 1 1 1 ... # $ day????? : int? 1 2 3 4 5 6 7 8 9 10 ... # $ discharge: num? 8.06 7.65 7.3 7.3 6.95 6.95 6.6 6.25 5.9 5.61 ... res1<-lapply(split(dat2,dat2$st),function(x) dcast(x,day~year,mean,value.var="discharge")) ?length(res1) #[1] 124 ?which(lapply(res1,nrow)>366) #this is what I mentioned #CURVO GHIST READO TERCA UZZCO #?? 34??? 52??? 82?? 115?? 118 nrow(res1$CURVO) #[1] 730 ?nrow(res1$CURVO) #[1] 730 ?tail(res1$CURVO) #??? day 2005 2006 2007 2008????? 2010 #725 725? NaN? NaN? NaN? NaN 1.2552028 #726 726? NaN? NaN? NaN? NaN 1.1714796 #727 727? NaN? NaN? NaN? NaN 0.8065988 #728 728? NaN? NaN? NaN? NaN 0.9375889 #729 729? NaN? NaN? NaN? NaN 1.1693797 #730 730? NaN? NaN? NaN? NaN 1.2124010 If the data is duplicated, then you can try this to sort out: res1[lapply(res1,nrow)>366]<-lapply(res1[lapply(res1,nrow)>366],function(x) x[1:366,]) which(lapply(res1,nrow)>366) #named integer(0) tail(res1$TERCA) #??? day???? 2004????? 2005????? 2006????? 2010 #361 361 4.451136 0.1457738 0.7695212 1.2963822 #362 362 4.539952 0.1371580 0.7409566 1.3431055 #363 363 2.133320 0.1179060 0.7325064 1.3905679 #364 364 1.499514 0.1238591 0.7223855 1.3318688 #365 365 1.136719 0.1312868 0.7449733 1.3561590 #366 366 1.004139?????? NaN?????? NaN 0.5610225 A.K. ________________________________ From: eliza botto <eliza_botto at hotmail.com> To: "smartpink111 at yahoo.com" <smartpink111 at yahoo.com> Sent: Wednesday, March 13, 2013 7:04 PM Subject: reshape Dear Arun, [text file is attached in case the format of file is change.......... excel file contains the data. Few days ago, i asked you a question about reshaping of data, of the file which is attached with this email By using the following command? library(reshape2) ?res<-lapply(split(dat1,dat1$st),function(x) dcast(x,month~year,mean,value.var="discharge")) The data was converted to following shape $VERRO ? ?month ? ? ? 2008 ? ? ?2009 ? ? ?2010 1 ? ? ?1 ?1.4737028 ?2.314878 ?2.672661 2 ? ? ?2 ?1.6700918 ?2.609722 ?2.112421 3 ? ? ?3 ?3.2387775 ?7.305766 ?6.939536 4 ? ? ?4 ?6.7063592 18.745256 13.278218 5 ? ? ?5 13.4666085 21.061198 12.185597 6 ? ? ?6 ?9.7578872 ?8.642275 ?6.973769 7 ? ? ?7 ?2.2772154 ?3.436705 ?3.357440 8 ? ? ?8 ?1.1911175 ?2.300386 ?1.994471 9 ? ? ?9 ?0.8528279 ?2.653862 ?1.242462 10 ? ?10 ?0.7581712 ?1.956000 ?1.753606 11 ? ?11 ?3.6661192 ?3.406465 10.984185 12 ? ?12 ?2.2877993 ?3.736377 ?2.312527 $VOBIC ? ?month ? ? ?2005 ? ? ?2006 ? ? ?2008 ? ? ?2009 1 ? ? ?1 1.7360776 0.8095275 1.6369044 0.8195241 2 ? ? ?2 0.6962079 3.8510720 0.4319758 2.3304495 3 ? ? ?3 1.0423625 2.7687266 0.2904245 0.7015527 4 ? ? ?4 2.4158326 1.2315324 1.4287387 1.5701019 5 ? ? ?5 1.6852624 0.8981553 0.2336609 2.4217805 6 ? ? ?6 0.7311802 0.5769895 0.5988320 1.0135255 7 ? ? ?7 0.4366588 0.5744698 0.2393858 0.6352815 8 ? ? ?8 0.2259192 1.0504790 0.1727715 0.4938100 9 ? ? ?9 0.3061264 0.7786805 0.1607744 0.5704136 10 ? ?10 0.1007935 0.1449439 1.3299596 0.6592695 11 ? ?11 0.4050701 0.2634931 3.4369699 2.8625800 12 ? ?12 2.5665737 3.5129255 3.7440045 6.7098572 I now want to reshape the data so that i instead of month column, there is a "day" column and corresponding to that column there are values of discharge against each day. Point to remember is that there can be leap years in the data. Therefore, in the day column there should be 366 rows and the discharge value against 366th row of "day" column should be NA for normal years. The output should slightly look like the following day2007200820092012 11.06481450.739607160.709476751.0910787 21.03883460.721533780.642139050.98537076 30.994321350.724910180.604172220.92753464 40.964183460.713164880.626546960.93985833 51.01195460.721533780.601655151.0182268 60.990267020.70683050.618238961.01867 70.96763580.627783840.624279221.0029522 80.984760260.589403720.675053341.0979852 90.992942280.596523180.63785911.1139438 100.960866430.623609280.631065041.1213348 110.961336750.685543460.632059741.0227273 120.910802230.692296270.679805130.99130809 130.898210330.695432570.625013880.98488831 140.90451450.697288760.652906231.0115222 150.971476140.721533780.631314180.97627949 160.972398850.737912840.615216920.94556519 171.00774530.676293650.622519120.94295091 181.02916630.697929810.644660540.93701747 191.02837050.659599590.651216180.91748959 200.969657780.608771360.668747160.95011925 210.968335920.661707260.655964571.0267864 221.00641240.619956180.577547541.0067704 231.13065080.614961340.635842971.0029563 241.06462430.628076090.615495770.99962462 250.928952190.615668930.592897730.98986724 260.942263680.653836540.558965290.95461753 271.02668740.617186840.572011930.88800036 280.94771740.555822150.535633291.0005777 290.981320330.629388560.522046891.0308107 300.992216490.589182910.573018751.0172452 311.05236710.646848410.578798270.91537055 321.0265770.58529220.681835260.91131135 330.933984210.584033440.7828520.96773502 340.88977990.616603250.782104830.94601239 350.892958190.633329670.704205790.98362671 360.895142570.563174440.769290951.0820029 370.896331620.584054430.818266421.0334544 380.953632950.579567980.842612740.96225166 390.983145180.604592630.764479490.91343272 400.98407340.645256820.71450390.9234311 410.956092520.696100550.748946850.98913102 420.996894260.685934740.694914190.85918895 430.997123210.670523270.689887450.87369491 440.983603080.693200160.775263010.94079462 451.01018540.675746250.681081990.94199814 460.97868190.706308330.649400530.96485538 470.991059310.698306030.615985821.0220053 480.993048560.703287150.659961981.0572528 490.979516030.70447730.614225721.0563196 500.966466220.591025260.641630911.0131615 510.943271660.593649720.626780170.91487339 520.951434220.613215470.645127060.91821118 530.933120710.583458750.678795931.0396076 540.946182930.58163910.700427170.98816825 550.969606440.553955920.675280461.0243786 560.952475780.534918280.659219811.001266 570.922747010.543278220.68861811.0076981 580.894430040.513272440.685622180.92648276 590.92652730.55081720.695660260.96099836 600.881879870.575617960.840092360.94934403 610.853577260.578525550.836073960.95625094 620.847754730.574117410.865484220.94170779 630.752322230.633223450.961532550.92981229 640.805179230.5818721.01116060.97984979 650.846797790.61297290.899303021.0105809 660.925805770.583721540.881288511.0515365 670.822347070.565243150.825528690.99106288 680.806379790.585820310.856195921.017468 690.775416040.611130560.866708181.015052 700.787507740.610304760.847902521.0300831 710.742507070.599864740.805210920.98531088 720.781721070.67169050.845400360.99889496 730.810744350.564842950.881530860.98009904 740.801071010.494853230.890004740.95679038 750.79091670.56518690.837582691.0355801 760.774696460.604315990.852634431.0908412 770.833467740.545913990.925448671.0836892 780.8445920.500468440.968060821.1196524 790.780972150.524489630.982251211.0815244 800.757262190.521005490.885294761.0881958 810.803240420.545886410.900113731.1234666 820.781228150.556052210.867759271.0836817 830.723385220.52704270.928950671.101074 840.745660560.572055240.851884861.1711372 850.707430640.610067080.861676681.3422045 860.64938610.537263620.882443011.146363 870.643327320.574083911.09494311.0501232 880.633222230.589973871.15035121.1187078 890.638528490.548038891.07272751.1463537 900.639437960.580587711.05522111.0277322 910.579675230.617089931.36677171.0434552 920.523858640.581591181.50668371.0381919 930.502897370.56697661.55489691.0872603 940.552531090.579787081.50904171.1263416 950.543698380.519883851.47954130.99869602 960.50948560.544044061.47229990.98555417 970.517196780.596260331.46011931.0158522 980.537638180.542616541.43274880.99869549 990.526522060.575883281.32307290.9967576 1000.507632660.618973761.44819221.0196349 1010.494634890.624457831.53571680.98960951 1020.48530960.615046441.42877021.0153303 1030.514013480.524271651.39415150.93344699 1040.505479540.520285731.44491780.98603459 1050.489847060.564647411.51582030.96893531 1060.509766640.615625191.7243610.92914199 1070.528582410.589434391.63495940.92845841 1080.539694270.677070821.49664010.99246688 1090.525429790.708300871.62886431.0001392 1100.552199470.692685841.59141090.96535717 1110.57489360.704544511.5839230.89322917 1120.581341970.95039531.59469980.96774321 1130.580231970.870118941.58721721.0703388 1140.570996090.850895271.60779591.0396314 1150.611240360.857834891.53126121.0232001 1160.596745180.853992681.64969791.0236788 1170.542354320.850160092.95830831.0019835 1180.478948690.866258834.22728221.0129579 1190.513190720.875382143.06184361.0569999 1200.533892050.912875632.46327631.1196854 1210.575013681.11644792.19263891.3541186 1220.652808750.947994442.11810861.8258313 1230.572470140.889800132.05124521.5870326 1240.645089420.842806532.02151491.6699538 1250.55869680.919142051.92608542.9393732 1260.530147881.37553281.83618812.5174096 1270.499938951.04813391.84277891.9632441 1280.544228351.17479321.95604261.6715986 1290.477599621.04810331.97988641.6251918 1300.472808651.02870631.98105481.7246901 1310.508133381.03708421.95205572.2090389 1320.491969511.08176281.97757252.134945 1330.580330951.06359531.94970042.1593739 1342.72760931.21894551.99369142.078446 1352.3409551.19119642.10516521.8117349 1360.653795341.01430492.12064411.6135186 1370.674405841.72366932.04421371.5115738 1380.494603462.42139372.02971921.4475275 1390.494041382.59001762.04374121.4044078 1400.542445153.26251542.01515361.3867691 1410.573050244.3120012.1568951.3498345 1420.554512134.78249232.76127511.3576969 1430.533292355.07245793.72252541.3243373 1440.521651034.83804234.66425761.3231542 1450.549035335.07087485.15899061.3634215 1460.625000754.58860556.11495811.5063462 1470.664636316.89224396.13105351.4863485 1481.74460577.0276825.02013831.4015488 1490.9893138211.113274.31413951.3755733 1500.7485418.5194484.35305811.3336467 1510.7877564817.8661033.72399831.4434756 1520.9671787510.6184633.1817371.3319598 1530.838063999.49790213.43566431.2871763 1540.767686629.10266754.24232851.2521469 1550.713488338.05928693.6136811.2438042 1560.691580477.38667114.56377591.2676442 1570.755100927.456215910.5612871.2905136 1580.786538357.93885276.91756951.3912844 1590.693669176.62166575.69888981.3522234 1600.86008193.27049817.14140912.8149149 1610.773236536.01129496.16770342.4243438 1620.802740226.14409245.93353323.4082182 1630.775161227.82397825.78761326.1901435 1640.853297577.97278545.98386646.4392565 1650.755804217.69552246.09740445.200522 1665.43650317.10237946.38980855.3154358 1674.67327877.01319597.11186176.0050122 1682.71813246.93724317.04393327.397882 1691.68299066.98617698.02083355.2847531 1701.09545286.85807389.06670064.3840506 1711.1832026.61854629.11420153.5813312 1721.54395246.45544718.24071142.8464327 1731.66295946.0023777.15631042.308585 1741.39110896.02015345.9965922.2683034 1751.0137966.08015164.51635142.2232726 1761.22203255.83708364.11013631.8545508 1771.39074885.55399244.16503531.7834044 1781.04934135.52670764.12196851.7679803 1790.817993035.65157875.97276222.2616463 1800.770582686.15258077.82814082.6211916 1810.781056596.30688596.40658462.5053509 1820.815826126.29605585.5316082.5193545 1830.872425396.62221186.08146782.1911263 1840.799617737.33735544.26058942.4818411 1850.74638478.34599554.71059152.4199169 1860.674591517.87512715.75189462.3712093 1870.692568157.06783475.58827462.287974 1880.679422927.18847145.02895982.0957046 1890.677472376.8622313.68996272.006909 1900.700974126.3338292.98369381.9475101 1910.631158316.09406432.90733281.861646 1920.615122676.08883662.81579571.898311 1930.564320416.24429532.83587361.9261693 1940.594892257.10070852.80102412.058995 1950.642937737.53796762.83925981.7427533 1960.620940666.66205162.98212351.7049205 1970.597350326.02718452.71624041.5980379 1980.584379845.99023854.57428681.7239156 1990.579452165.98941317.91891861.4384137 2000.557736436.10517024.33473291.2943278 2010.552432116.09860782.78877781.4182289 2020.565459145.39031172.70727281.3331344 2030.534671865.80665172.57246521.8001603 2040.623344675.20840422.60017652.1845565 2050.647746996.0602162.56937051.3000448 2060.516276996.04092432.5359381.1315809 2070.541215595.86390432.18347811.0953713 2080.542103965.90491762.04957271.1153756 2090.546852954.52234552.15498041.113491 2100.525649475.65755092.08905011.0848855 2110.497719215.93350971.83736131.0765594 2120.495674635.8513461.97941721.0522506 2130.546131125.85084481.89801571.1027664 2140.566462015.95377832.35460991.1728034 2150.543097265.76733942.2220551.0670922 2160.508683934.38068571.82851221.0639146 2170.562784195.4972781.76906731.1427799 2180.565930615.68401851.76321341.0827335 2190.578437764.52610071.7283421.0536919 2200.669033453.84358922.26787481.1587576 2210.568170093.8455411.80112631.1373135 2220.521121593.76844251.57930111.0949174 2230.538162.71063561.66561491.0756004 2240.555363624.80099221.63285351.207592 2250.588774065.62892251.45032461.1277703 2260.58639936.47543691.4356031.6840457 2270.604196435.32173831.34201351.781441 2280.598778232.78827231.21323541.5170789 2290.600894484.86793372.02606111.3124227 2300.585118772.28809412.804861.1344342 2310.590046454.57215122.80999011.1697087 2320.597775354.7464592.74010881.1334919 2330.637527054.55994832.697911.1111067 2340.635632434.51849952.62538081.1990097 2350.575525414.66521862.59458491.1742317 2360.579450214.65962322.51177591.1356492 2370.569736662.16199812.49691231.1258631 2380.585889012.62385662.78611581.192101 2390.609870432.67228073.06652551.1678017 2400.623637014.5182022.70350611.137551 2410.632970444.41402031.83183691.0741609 2420.620964014.10900271.14647931.118947 2430.552160424.28036691.13755491.0494053 2440.590046451.59845331.12076981.0879782 2450.563294493.09942741.13428741.1720783 2460.61047974.53809061.13333131.1377645 2470.592820384.72700551.09277281.1797031 2480.530186935.2568121.01961561.2226005 2490.545983745.54867970.975800781.2140205 2500.531234576.84242241.02819161.2295129 2510.536805849.25181511.03240861.776022 2520.564948845.83119191.06125191.2755068 2530.53707735.11100451.01309961.2357103 2540.536425825.12136471.04169421.1249365 2550.583900224.98415231.05619351.1568394 2560.5749425.10465510.955761171.1756604 2570.543061816.46399111.01087371.1308558 2580.61556293.69223851.15831921.1994919 2590.631837915.6415911.65108971.2125883 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