dplyr package! selecting the columns using select( ) function 

Datasets often come with more variables than we need, and we're not going to need all of them in any one analysis. So we will need to select a handful of the variables from a data set that are relevant for our analysis. This can be done using select function from dplyr package.
Selecting variables from a data set using select function can be carried out in two different ways:
- By using names of the variables
- By using position of the variable
In this video we will look at select function and its various options
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