Nothing
################################################################################
#
# plot.predict.downscale.R
# Version 1.1
# 13/02/2015
#
# Updates:
# 13/03/2015: if 0's predicted don't plot them
#
# Plot the observed and predicted area of occupancy against grain size on
# log-log axes.
#
# Args:
# predict.object: an object of class 'predict.downscale' containing observed
# and predicted data
# ...: arguments, including graphical parameters, passed to other methods.
#
# Returns:
# no object returned.
#
################################################################################
plot.predict.downscale <- function(x,
xlim = NULL,
ylim = NULL,
xlab = NULL,
ylab = NULL,
main = NULL,
lwd.obs = NULL,
lwd.pred = NULL,
col.obs = NULL,
col.pred = NULL,
...) {
predict.object <- x
# error checking
if (class(predict.object) != "predict.downscale"){
stop("Input data not of class 'predict.downscale'")
}
model.run <- predict.object$model
observed <- predict.object$observed
predicted <- predict.object$predicted
predicted[predicted == 0] <- NA
### plotting pars
if(is.null(xlim)) {
xlim <- c(min(c(observed[, "Cell.area"],
predicted[, "Cell.area"]), na.rm = TRUE),
max(c(observed[, "Cell.area"],
predicted[, "Cell.area"]), na.rm = TRUE))
}
if(is.null(ylim)) {
ylim <- c(min(c(observed[, "Occupancy"],
predicted[, "Occupancy"]), na.rm = TRUE), 1)
}
if(is.null(xlab)) {
xlab <- "Log cell area"
}
if(is.null(ylab)) {
ylab <- "Log occupancy"
}
if(is.null(main)) {
main <- paste(model.run, "model")
}
if(is.null(col.obs)) {
col.obs <- "black"
}
if(is.null(col.pred)) {
col.pred <- "red"
}
if(is.null(lwd.obs)) {
lwd.obs <- 2
}
if(is.null(lwd.pred)) {
lwd.pred <- 2
}
plot(observed[, "Occupancy"] ~ observed[, "Cell.area"],
type = "n",
log = "xy",
xlim = xlim,
ylim = ylim,
xlab = xlab,
ylab = ylab,
main = main,
...)
points(observed[, "Occupancy"] ~ observed[, "Cell.area"],
type = "b",
col = col.obs,
lwd = lwd.obs,
...)
points(predicted[, "Occupancy"] ~ predicted[, "Cell.area"],
type = "b",
col = col.pred,
lwd = lwd.pred,
...)
}
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