What are NA values?

What are NA values?

NA represents ‘not available’ used for indicating the missing values or undefined data in the datasets. It is a logical constant of length 1. NA is one of the reserved words whose properties differ from others. It is one of the common issues while dealing with large amounts of data sets. Dealing with NA values is a crucial step in data analysis....

How do we select rows containing NA values?

R provides many in-built or predefined functions to deal with NA values. This NA can be able to presented in different data sets such as data frames, matrices, and vectors. R provides some functions or methods to select rows containing NA values. Some of the methods are:...

Conclusion

In this article, we accomplished two methods to select rows with NA values by using the functions complete.cases() and is.na(). Here, R provided many tools for dealing with these NA values....