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How to summarize grouped data in R?
Group By Summarise R Example
The summarise() or summarize() function takes the grouped dataframe/table as input and performs the summarize functions. To get the dropped dataframe use group_by() function. To use group_by() and summarize() functions, you have to install dplyr first using install.
How do you read a data table?
A table can be read from left to right or from top to bottom. If you read a table across the row, you read the information from left to right. In the Cats and Dogs Table, the number of black animals is 2 + 2 = 4. You'll see that those are the numbers in the row directly to the right of the word 'Black.
