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Practical Predictive Analytics
book

Practical Predictive Analytics

by Ralph Winters
June 2017
Beginner to intermediate content levelBeginner to intermediate
576 pages
15h 22m
English
Packt Publishing
Content preview from Practical Predictive Analytics

The colors() function

The colors() function returns a list of colors that are used in the current palette. We can then perform a little code manipulation in conjunction with the gsub() function that we just used to replace all of the specified colors from OnlineRetail$Description with blanks.

We will also use the kable() function, which is contained within the knitr package, in order to produce simple HTML tables of the results:

# compute the length of the field before changes before <- sum(nchar(OnlineRetail$Description)) # get the unique colors returned from the colors function, and remove any digits found at the end of the string # get the unique colors col2 <- unique(gsub("[0-9]+", "", colors(TRUE))) #Now we will filter out any colors ...
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Publisher Resources

ISBN: 9781785886188Supplemental Content