Popularity of Data Science Software

The number of data science jobs for the more popular software (those with 250 jobs or more, 2/2017).

R (blue) and SAS (orange).

Number of scholarly articles found in the most recent complete year (2016) for the more popular data science software. To be included, software must be used in at least 750 scholarly articles.

The number of scholarly articles found in each year by Google Scholar. Only the top six “classic" statistics packages are shown.

The number of scholarly articles found in each year by Google Scholar for classic statistics packages after the curves for SPSS and SAS have been removed.

1,220 respondents from 72 different countries

https://www.rstudio.com/resources/cheatsheets/

http://github.com/rstudio/cheatsheets/raw/master/base-r.pdf

https://github.com/rstudio/cheatsheets/raw/master/data-transformation.pdf

Do you see any errors in the following code?

library(tidyverse)

ggplot(dota = mpg) + 
  geom_point(mapping = aes(x = displ, y = hwy))

fliter(mpg, cyl = 8)
filter(diamond, carat > 3)

Discuss with your neighbor what the error statement is saying. How would you fix it?

ggplot(dota = mpg) + 
+   geom_point(mapping = aes(x = displ, y = hwy))
#> Error in structure(list(data = data, layers = list(), 
#> scales = scales_list(),  : 
#>  argument "data" is missing, with no default

fliter(mpg, cyl = 8)
#> Error in fliter(mpg, cyl = 8) : could not find function "fliter"

filter(diamond, carat > 3)
#> Error in filter(diamond, carat > 3) : object 'diamond' not found

Open today's activity and work through the exercise.