Nothing
epi.asc <- function(dat, file, xllcorner, yllcorner, cellsize, na = -9999)
{
id <- is.na(dat)
dat[id] <- na
ncols <- dim(dat)[2]
nrows <- dim(dat)[1]
h.ncol <- paste("ncols", nrows)
h.nrow <- paste("nrows", ncols)
# h.ncol <- paste("ncols", ncols)
# h.nrow <- paste("nrows", nrows)
h.xllcorner <- paste("xllcorner", xllcorner)
h.yllcorner <- paste("yllcorner", yllcorner)
h.cellsize <- paste("cellsize", cellsize)
h.nodata <- paste("nodata_value", na)
header <- rbind(h.ncol, h.nrow, h.xllcorner, h.yllcorner, h.cellsize, h.nodata)
write.table(header, file = file, append = FALSE, quote = FALSE, sep = " ", row.names = FALSE, col.names = FALSE)
rval <- as.matrix(dat)
rval <- matrix(rval, nrow = ncols, byrow = TRUE)
rval <- rval[ncols:1,]
write.table(rval, file = file, append = TRUE, quote = FALSE, sep = " ", row.names = FALSE, col.names = FALSE)
}
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