search for: pooraka_data

Displaying 2 results from an estimated 2 matches for "pooraka_data".

2010 Sep 02
0
extract month data automatically
Hi, I would like to extract monthly data automatically using a code.  Given are my sample data. I know how to do one by one: jan_data1 <- Pooraka_data[Pooraka_data$Month=="1",4] feb_data1 <- Pooraka_data[Pooraka_data$Month=="2",4] mar_data1 <- Pooraka_data[Pooraka_data$Month=="3",4] apr_data1 <- Pooraka_data[Pooraka_data$Month=="4",4] ... then i try: p0_mn <- function(dt) {  p0 <- sum(dt==0)...
2008 May 12
2
How to eliminate perticular date
Hi R-expert, I try to eliminate 29 Feb but I got an error message below: feb_data1 <- Pooraka_data[Pooraka_data$Month=="2",] feb_28days <- feb_data1 [feb_data1$Day=="28",] feb_29days <- feb_data1 [feb_data1$Day=="29",] ## delete 29 Feb feb_no_29 <- feb_data1 [-(feb_29days),] feb_no_29 <- feb_data1 [-(feb_29days),] Error in xj[i] : invalid subscript type...