errTest: Small subset of tura with NA's inserted into cell 51 for...

In bendv/bfastmonitor.rasterEngine: Implementation of bfastmonitor() using rasterEngine() from spatial.tools

Description

This small rasterBrick can be used for testing error catching.

Usage

data(errTest)

Details

bfastmonitor() will return an error for this brick if startperiod=c(2006, 1) (e.g.) since all values for one pixel for dates before 2005 have been removed, making it impossible to construct a stable history period for that. bfastmonitor_rasterEngine_tryCatch() should assign values of -9999 for this pixel and continue processing all other pixels.

Examples

data(errTest)

## Not run: 
# bfastmonitor_rasterEngine() without error catching returns an error without completing the tastk
bfm <- bfastmonitor_rasterEngine(errTest, startperiod=c(2006, 1), cpus=1, datetype="irregular")

## End(Not run)

# with tryCatch() this error is skipped and a -9999 assigned
bfm <- bfastmonitor_rasterEngine_tryCatch(errTest, startperiod=c(2006, 1), cpus=1, datetype="irregular", printErrors=FALSE)

# extract change(breakpoints) and magnitude and remove -9999 values
change <- raster(bfm, 1)
change[change == -9999] <- NA
magn <- raster(bfm, 2)
magn[magn == -9999] <- NA

# produce an error mask from previous results
errMask <- raster(bfm)
errMask[bfm[[1]] == -9999] <- 1

bendv/bfastmonitor.rasterEngine documentation built on May 12, 2019, 10:58 a.m.