I am ploting gridded time series data. I would like the actual lat and lon
value appear on the graph-if possible inside the graph as numbers. If there is
also more elegant ways to plot the graphs I will appreciate more suggestions.
#################################
library(ggplot2)
library(lattice)
month <- c("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul",
"Aug", "Sep", "Oct", "Nov", "Dec")
month <- factor(month, levels = month.abb)
data <- as.data.frame(expand.grid(lon=seq(4,5, 1), lat=seq(-3,-2,1),
year=seq(2010, 2012,1), month=month))
n=nrow(data)
data$prec <- rgamma(n, 2, 0.25)
data$year <- factor(data$year)
data$lon <- factor(data$lon)
data$lat <- factor(data$lat)
ndata <- data[order(data$lon, data$lat),]
fix(ndata)
max <- max(ndata$prec, na.rm=TRUE)
min <- min(ndata$prec, na.rm=TRUE)
#Plot the graph and save as pdf
pdf("H:/file.pdf")
xyplot(prec~month|year+lon+lat, data=ndata,
type = c("l", "l","p"), ylim=c(min, max),
layout=c(1,4))
dev.off()
##############################
#I want to remove the lat and lon rows and put the numbers inside the graph
############################################################################
Peter Maclean
Department of Economics
UDSM
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