How to sum a column in R?
Understand the Problem
The question is asking for guidance on how to perform the summation of a specific column in the R programming language. This typically involves using a function to calculate the total of values in that column of a data frame.
Answer
sum(data_frame$column_name)
The final answer is sum(data_frame$column_name)
Answer for screen readers
The final answer is sum(data_frame$column_name)
More Information
The sum function is used to calculate the sum of a vector in R. To calculate the sum of a specific column in a data frame, you can reference the column using data_frame$column_name.
Tips
A common mistake is forgetting to handle NA values in the column, which can be addressed by using the na.rm=TRUE argument.
Sources
- How to sum data.frame column values? - Stack Overflow - stackoverflow.com
- How to find the sum of column values of an R dataframe? - GeeksforGeeks - geeksforgeeks.org
- How to use sum() in R - Find the sum of elements in R | DigitalOcean - digitalocean.com
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