Missing values [wrangle]

(Builds on: Exploratory data analysis (2D))
(Leads to: Vector and summary functions)

R uses NA to present unknown, but potentially measurable variables.

The pattern of missingness in a dataset is often informative, so you should never silently ignore missing values.

Readings

• Missing values [r4ds-5.2.3]. (transformation)

• Missing values [r4ds-5.6.2]. (summary)

• Missing values [r4ds-7.4]. (visualisation)

Supplemental readings

• naniar