How do you read in the variables that you need?
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Answer Posted / kumaraswamy maduri
Use KEEP or DROP depending on the number of varibales you
require.
Keep: Out of 50 if you require to keep 20 variables it
better to use keep.
Drop: It meaning less to use KEEP when you want to use 35-
40 variables. Its better to drop the remaining variables.
Both mean same but efficient coding is always preffered.
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