Practical Data Wrangling

Naming variables

Using the right name for a variable is important. There are some conventions and some syntactical rules to name variables properly. Variables have to be one word, they have to start with a letter or underscore, and all remaining characters must be a letter, a number, or an underscore. If these rules are not followed, the program will produce an error.

There are two best practices to take into account when choosing a variable name. First, the variable name should reflect its function in the program. This makes it easier to keep track of how the program functions. Second, if the variable name consists of several words, these should be separated using either camel case or snail case to make it easier to read.

In camel case, ...