POST

Visualizing data: getting started with bar charts

<<Previous post: Exploring data with descriptive statistics and frequency tables Once you’ve done a first-pass analysis of your data using summaries and tables, it’s time to visualize it with graphs and charts. For exploring categorical variables, it makes sense to start with a simple bar chart. We will start with using a built-in function of R, “barplot”, before getting into ggplot2 – a package that Read more

POST

Exploring data with descriptive statistics and frequency tables

<< Previous: Organizing and cleaning data: missing values, part 1 Once your variables are in the right shape, you can start examining your data. I like to start out with running descriptive statistics and frequency analyses for the variables I’m interested in, and see if there are any missing values and values out of the expected Read more