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Can anyone tell me how to remove several numbers for a sequence. For example: xx<- c(1,5,7,10) yy<-seq(1,10,1) how do I get take xx away from yy to get the new sequence 2,3,4,6,8,9 Many thanks in advance -- View this message in context: http://r.789695.n4.nabble.com/Remove-several-numbers-from-a-sequence-tp4640630.html Sent from the R help mailing list archive at Nabble.com.

Hi, I am trying to assign "Season" values to dates depending on when they occur. For example, the following dates would be assigned the following "Season" numbers based on the "season" intervals detailed below in the code: ddate Season 29/12/1998 20:00:33 1 02/01/1999 05:20:44 2 02/01/1999 06:18:36 2 02/02/1999

Hi, I am trying to remove a series of records from a large dataframe. The script I have written works fine but takes a long time to run. Can anyone suggest a quicker way to do this? Here is an example of the code I've written. The end result of this bit of code would be a dataframe with any records relating to ID 1 or ID 4 removed: #dataframe id <- c(1,1,1,1,2,2,2,2,2, 3,3,3, 4,4)

Hi, I have overlayed 2 projected shapefiles using the "plot" function. When I plot them the numbers next to the x-axis ticks are printed in scientific format (e.g. -4e+05, -3e+05,...,), and the problem is these dont match up to the projected point locations I also wish to overlay from my dataset. For example, according to the x-axis ticks the prime meridian (0?) is in totally the

I am trying to assign increasing trip numbers to a binary variable ("land"; 1=home and 0=away) where a string of 1's shouldn't increment the trip_no more than once. For example; based on land<-c(0,0,0,0,1,1,1,0,0,0,1,1,0,0,0,0) the "trip_no" sequence produced should be 1,1,1,1,2,2,2,2,2,2,3,3,3,3,3,3 This is as far as I can get but Im stumped. In addition I

Hi, I am trying to assign values to records based conditionally on other records within a dataframe. For example, in the following dataframe the "NA" value in dat$age would be replaced if the age status for that individual and specific year can be found in another record. Ideally this would then also assign the same age status if the individual is recorded in a later year.