September 2017
Beginner to intermediate
560 pages
25h 18m
English
book
R Data Analysis Cookbook, Second Edition - Second Edition
by Kuntal Ganguly, Davor Lozić, Mzabalazo Z. Ngwenya, Andrew Bauman, Shanthi Viswanathan, Viswa Viswanathan
Content preview from R Data Analysis Cookbook, Second Edition - Second Edition
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Displaying available methods
The following commands are useful to get a list of available methods, or to get the method signature:
> .jmethods(s,"trim") [1] "public java.lang.String java.lang.String.trim()"
The preceding command indicates that the trim method can be invoked on a String object, and it returns a String object:
> # To get the list of available methods for an object > .jmethods(s) [1] "public boolean java.lang.String.equals(java.lang.Object)" [2] "public java.lang.String java.lang.String.toString()" [3] "public int java.lang.String.hashCode()" [4] "public int java.lang.String.compareTo(java.lang.String)" [5] "public int java.lang.String.compareTo(java.lang.Object)" [6] "public int java.lang.String.indexOf(int)" .....
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.