Join Barton Poulson for an in-depth discussion in this video Creating scatterplot matrices, part of Up and Running with R.
In the last movie, we looked at how to create a scatterplot to show the…association between two quantitative variables.…On the other hand, sometimes you have several quantitative variables, and you…want to look at the associations between each of them.…One option, in that case, is to create what's called a scatterplot matrix, which…has several scatterplots arranged in rows and columns.…I'm going to use the Google search data.…I'm going to load it in by saying Google gets read.csv, and so on.…Let's just take a look at the variable names in it.…
There's what we've got.…State, state_code, data_viz is a search term, Facebook is a search term, NBA is…a search term, whether the State has an NBA team, the percentage of people with…degrees, whether they have a stats_education curriculum in the K through 12 system,…and the region of the U.S.…Now what I'm going to do is I'm going to take each of the quantitative…variables -- data_viz, degree, Facebook, and NBA -- and I'm going to put them into…a scatterplot matrix.…
The course continues with examples on how to create charts and plots, check statistical assumptions and the reliability of your data, look for data outliers, and use other data analysis tools. Finally, learn how to get charts and tables out of R and share your results with presentations and web pages.
- What is R?
- Installing R
- Creating bar character for categorical variables
- Building histograms
- Calculating frequencies and descriptives
- Computing new variables
- Creating scatterplots
- Comparing means