band1<-raster(B1)
Error in if (x == "" | x == ".") { : argument is of length zero
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Phil
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1what is `B1`? I am guessing a zero length character. – Robert Hijmans Mar 26 '21 at 16:22
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B1 is the name of the file where Band 1 images are saved. – Spogmay khan Mar 27 '21 at 13:29
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I doubt that. Please edit your question to show that (print B1 before running this example). – Robert Hijmans Mar 28 '21 at 04:31
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That suggests that B1 is an empty string
library(raster)
B1 <- character()
B1
# character(0)
raster(B1)
# Error in if (x == "" | x == ".") { : argument is of length zero
Robert Hijmans
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