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remove column from matrix r

# Remove third column - by column number
MyMatrix <- MyMatrix[,-3]

# Remove third and fifth columns - by feeding the matrix a boolean vector
MyMatrix <- MyMatrix[,c(TRUE,TRUE,FALSE,TRUE,FALSE,TRUE)]
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r remove column by index

DT[, coltodelete := NULL]
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how to remove columns in a table in r

# delete multiple columns in r 
# delete column in R by mapping Null value to them
dataset$firstcol <- dataset$nextcol <- dataset$anothercol <- NULL
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how to drop a column in r

keeps <- c("y", "a")
DF[keeps]
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remove columns in r

DataNAME$ColumnNAME <- NULL
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