Nothing
#' @importFrom graphics par strwidth
#' @importFrom stats cor na.omit reorder filter
################## AUTO-CORRELATION #############
# Create function to make histogram with density superimposed
panel.hist <- function(x, ...) {
# Set user coordinates of plotting region
usr <- par("usr"); on.exit(par(usr))
par(usr = c(usr[1:2], 0, 1.5))
par(new=TRUE)
# Do not start new plot
hist(x, prob=TRUE, axes=FALSE, xlab="", ylab="",
main="", col="lightgray")
lines(density(x, na.rm=TRUE))
# Add density curve
}
# Create function to compute and print R^2
panel.r2 <- function(x, y, digits=2, cex.cor, ...) {
# Set user coordinates of plotting region
usr <- par("usr"); on.exit(par(usr))
par(usr = c(0, 1, 0, 1))
r <- cor(x, y, use="complete.obs")**2 # Compute R^2
txt <- format(c(r, 0.123456789), digits=digits)[1]
if(missing(cex.cor)) cex.cor <- 1/strwidth(txt)
text(0.5, 0.5, txt, cex = cex.cor * r)
}
stabl <- function(p, q, thr.value)
{
# build threshould
t <- as.numeric(thr.value)
t <- c(0, t, 0, t, 1, 1)
pm <- c(0, 0, 0, 0, 1, 100)
# build matrix
mr <- matrix(t, ncol = 3, byrow = TRUE)
rcls <- matrix(pm, ncol=3, byrow=TRUE)
p <- reclassify(p, mr)
pmf <- reclassify(p, rcls)
qs <- reclassify(q, mr, right=FALSE)
qs <- calc(qs, fun=sum)
# Build stability
stab <- pmf + qs
#mapp <- rasterToPoints(stab)
#df <- data.frame(mapp)
#colnames(df) <- c("Longitude", "Latitude", "MODEL")
return(stab)
}
stabl.con <- function(p, q, thr.value){
# build threshould
t <- as.numeric(thr.value)
ts <- c(0, t, -1)
mr <- matrix(ts, ncol = 3, byrow = TRUE)
c_pre <- reclassify(p, mr,right=FALSE)
t1 <- c(0, t, 0)
mr1 <- matrix(t1, ncol = 3, byrow = TRUE)
qs <- reclassify(q, mr1,right=FALSE)
fun <- function(x){
# paramaters
nparm <- length(x[x > 0])
# core function
mean(x) * nparm / nlayers(q) }
q.val <- calc(qs, fun = fun)
v <- getValues(q.val)
v <- replace(v, v == 0, 10)
qs.complex <- setValues(q.val, v)
plot(qs.complex)
# Build stability
stab <- c_pre * qs.complex
t3 <- c(-10, -1, -2, 1 , 10, 2)
mr3 <- matrix(t3, ncol = 3, byrow = TRUE)
stab.sal <- reclassify(stab, mr3, right=FALSE)
#plot(stab.sal)
#con.rast <- stack(q.val, c_pre)
#mX.lost <- function(x, y, q = 2, p = -1) {ifelse(x < 0.1, p * q, x * y)}
#stab <- overlay(x=q.val,y=c_pre, fun = mX.lost, unstack=TRUE,forcefun=T)
#writeRaster(stab.sal, 'Prueb.asc',overwrite=T)
#plot(stab)
#df <- data.frame(mapp)
#colnames(df) <- c("Longitude", "Latitude", "MODEL")
return(stab.sal)
}
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