October 2019
Beginner to intermediate
674 pages
16h 43m
English
Content preview from Mastering pandas - Second Edition
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Multi-column selection in R
In R, we specify the multiple columns to select by stating them in a vector within square brackets:
>stocks_table[c('Symbol','Price')]
Symbol Price
1 GOOG 518.70
2 AMZN 307.82
3 FB 74.90
4 AAPL 109.70
5 TWTR 37.10
6 NFLX 334.48
7 LINKD 219.90
>stocks_table[,c('Symbol','Price')]
Symbol Price
1 GOOG 518.70
2 AMZN 307.82
3 FB 74.90
4 AAPL 109.70
5 TWTR 37.10
6 NFLX 334.48
7 LINKD 219.90
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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