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  3. Data Manipulation with data.table in R

Exercise

Importing selected columns

It's time to practice importing only a few columns from a file as opposed to importing the entire file. You will be importing the following file: 

id,name,val
29192,Robert Whitaker, 200
49301 ,Elisa Waters,190  
34456 , Karla Schmidt,458

Instructions 1/2

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Use fread()'s select argument to import only "id" and "val" columns.