5. warming_plot <- ggplot(warming, aes(x = year, y = value)) + 6. geom_line(colour="black") + 7. geom_point(shape = 21, colour = "black", aes(fill = value), size=5, stroke=1) + 8. scale_x_continuous(limits = c(1880,2017)) + 9. scale_y_continuous(limits = c(-0.5...
In summary, Tidy uses unnecessarily complicated machinery, an obvious drawback for teaching beginners, and yet only equips students to perform a narrow set of operations. It would be like teaching English As a Second Language as follows: The instructor teaches the students to say "Good Morning,"...
library(tidytext) #package for tidy text analysis (Check out Julia Silge's fab book!) library(glue) #for pasting strings library(data.table) #for rbindlist, a faster version of rbind # now let's read in some data & put it...
All types of vectors can be named. Names are useful for writing readable code and describing objects in R. You can name the elements of a vector with thenames()function. As an example, let’s assign the variable x to a new vector with three elements. x<-c(1,3,5) You can use the...
R in Action ggplot2 Advanced R 2.Installing and Loading Package installing:install.packages('ggplot2') loading:library(ggplot2) updating:update.packages() 3.R language basics create a vector: v=(1,4,4,3,2,2,3) or w=c("apple","banana","orange") ...
We want to compare the runtime of an example using R as an interpreted language, and also using Rcpp. We want to calculate the weighted mean of a vector.A naive R function could look like that. We will use only interpreted R code:...
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Factor out common operations rather than repeating them. And keep your code in smaller chunks. If a single function or loop gets too long, consider looking for ways to break it into smaller pieces. There is a 80 characters line, that will help you comfortably fit code on a printed page ...
The original idea of a time-saving reproducible build system extends back at least as far as GNU Make, which still aids the work of data scientists as well as the original user base of complied language programmers. In fact, the name “drake” stands for “Data Frames in R for Make”....
So far we have only seen how to get individual comments or sentences scored. But what if you would like to run the function for an entire dataset with a text column? This is whereprsp_streamcomes in. At its coreprsp_streamis a loop implemented withinpurrr::mapto iterate over your text...