Here I am summarizing your query.

You are working on Data science certification project and need an explanation about the step 2 which says "separate out the log and time columns." 

Please find the explanation below:

Machine log refers to the column 'content' present in the data set. In this step we need to separate the content column from the other columns present in the data set.


E.g: 

initialdata<-read.csv("NFL_SocialMedia_sample_data1.csv",head=T)

newdata<-data.frame(initialdata[,1]) 


Hope this resolves your query.


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