search for: 1981l

Dear all, I'm trying to make an R code for the drought severity index (DSI) developed by Philips and McGregor (1998). You can refer to the description of the algorithm on page 19 from http://dissertations.port.ac.uk/229/01/MaloneS.pdf The code is given in Excel as the following and can be found on page 60 from the same link. C7 = IF(C6<0,IF(@SUM(A6:A1)<0,C6+A6,"0"),

Hi R users, I have a dataset with multiple variables and i'm trying to weigh average depths for fish species per year by their abundance (CPUE. I have tried the weighted.mean function but as i have two columns for the x value the lenghts differ with the w (CPUE). How do I solve this problem? So far I have tried this: data<-by(allspecies, list(allspecies$Depth, allspecies$Year),

All, What would be the most efficient way to load the data at the following address into a dataframe? http://ratings.fide.com/top.phtml?list=men Thanks, David -- View this message in context: http://r.789695.n4.nabble.com/Loading-Chess-Data-tp4642006.html Sent from the R help mailing list archive at Nabble.com.

...t the way to write the coding for that. Could you please help me on that??? I have also ,written below, the exact dput of my file. Thnx in advance. > dput(eliza) structure(list(Year = structure(c(1L, 133L, 265L, 397L, 529L, 661L, 793L, 925L, 1057L, 1189L, 1321L, 1453L, 1585L, 1717L, 1849L, 1981L, 2113L, 2245L, 2377L, 2509L, 2641L, 2773L, 2905L, 3037L, 3169L, 3301L, 3433L, 3565L, 3697L, 3820L, 3941L, 12L, 144L, 276L, 408L, 540L, 672L, 804L, 936L, 1068L, 1200L, 1332L, 1464L, 1596L, 1728L, 1860L, 1992L, 2124L, 2256L, 2388L, 2520L, 2652L, 2784L, 2916L, 3048L, 3180L, 3312L, 3444L, 3576L, 23...