Re: [R] plot data from tapply

I left off the statement to load the reshape package. If you don't have it, install it from CRAN: x=c(1,2,3,1) y=c(1,2,3,1) ss=c(55,NA,55,88) ss_byxy_test=tapply( ss, list( x, y), mean, na.rm=TRUE) ss_byxy_test # use the 'reshape' package library(reshape) # now 'melt' the data to get it into a f

Re: [R] plot data from tapply

Here is one way of doing it: x=c(1,2,3,1) y=c(1,2,3,1) ss=c(55,NA,55,88) ss_byxy_test=tapply( ss, list( x, y), mean, na.rm=TRUE) # use the 'reshape' package ss_byxy_test # now 'melt' the data to get it into a format for plotting (ss_melt <- melt(ss_byxy_test)) # create the plot area so you can ad

[R] plot data from tapply

i have three data, x coordinate, y coordinate and signal strength i use tapply() function to get the average ss in the give x,y location x=c(1,2,3,1) y=c(1,2,3,1) ss=c(55,NA,55,88) ss_byxy_test=tapply( ss, list( x, y), mean) and I get this table 1 2 3 1 71.5 NA NA 2 NA NA NA 3 N