mergeTime function

merge SpatRasters by timelines to create a single timeseries

Combine SpatRasters with partly overlapping time-stamps to create a single time series. If there is no overlap between the SpatRasters there is no point in using this function (use c instead).

Also note that time gaps are not filled. You can use fillTime to do that. methods

## S4 method for signature 'SpatRasterDataset'
mergeTime(x, fun=mean, filename="", ...)

Arguments

• x: SpatRasterDataset
• fun: A function that reduces a vector to a single number, such as mean or min
• filename: character. Output filename
• ...: list with named options for writing files as in writeRaster

Returns

SpatRaster

Examples

r <- rast(system.file("ex/logo.tif", package="terra"))   
s1 <- c(r, r)
time(s1) <- as.Date("2001-01-01") + 0:5
s1 <- s1/10
time(s1) <- as.Date("2001-01-07") + 0:5
s2 <- s1*10
time(s2) <- as.Date("2001-01-05") + 0:5
x <- sds(s1, s1, s2)

m <- mergeTime(x, mean)