Add a line plot in stack of rasters in spplot R

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Add a line plot in stack of rasters in spplot R



I have a stack of rasters.


## read the libraries
library(raster)
library(rgdal)
library(sp)

##random raster object
r <- raster(ncol=40, nrow=20)
r <- rnorm(n=ncell(r))
# Create a RasterStack object with 3 layers
s <- stack(x=c(r, r*2, r**2))

##coordinate system
wgs<-CRS("+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs")

##plotting with spplot
plot(spplot(s,layout=c(2,2),
colorkey =list(space = "right"),
names.attr = c("a","b","c")))



enter image description here



So far, I have plotted the stack of raster in layout=c(2,2). Now, in the empty 2nd row and 2nd column I want to plot the mean of raster stack as a line plot. Something like this....


layout=c(2,2)


plot(cellStats(s, stat='mean', na.rm=TRUE,
asSample=TRUE),type="l",ylab="mean",xlab="value")



Can anyone help me with this?



enter image description here









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