R Data Frame

R Data Frame

An R Data Frame is a list of variables of the same number of rows. List of variables are transformed to columns in Data Frame. And respective values in each of these columns together form rows.

In this tutorial, we will see a basic example of an R Data Frame, and the list of tutorials covering different scenarios of Data Frame.

Example

The following is an example for R Data Frame.

c1, c2, c3 are the columns. 1, 2, 3 and 4 are the rows.

And we have used following R script to generate the above Data Frame.

df <- data.frame("c1" = c(41, 42, 43, 44),
                 "c2" = c(45, 46, 47, 48),
                 "c3" = c(49, 50, 51, 52))

data.frame() function creates a Data Frame.

R Data Frame Tutorials

Create Data Frame

• R – Create Empty Data Frame
• R – Create Data Frame

Read Elements / Rows / Columns

• R – Access Element at (i,j) in Data Frame

Rows / Columns

• R – Get Number of Rows in Data Frame
• R – Get Number of Columns in Data Frame
• R – Add Row to Data Frame
• R – Add Column to Data Frame
• R – Remove Row(s) in Data Frame
• R – Delete Duplicate Rows in Data Frame
• R – Remove NA Rows in Data Frame
• R – Delete Column(s) in Data Frame

Modify

• R – Reset Row Numbers of Data Frame
• R – Replace NA with 0 in Data Frame
• R – Rename Column(s) of Data Frame

Sorting

• R – Sort Data Frame by Column

Filtering

• R – Filter Data Frame with NA rows

Conversions

• R – Convert List to Data Frame
• R – Convert Data Frame to Matrix
• R – Convert Matrix to Data Frame

Transformations

• R – Apply Function For Each Row in Data Frame

Two or More Data Frames

• R – Combine Data Frames
• R – Compare Data Frames

Import / Export

• R – Import Excel to Data Frame

Others

• R – Structure of Data Frame
• R – Summary of Data Frame

Conclusion

In this R Tutorial, we learned what a Data Frame is, in R language, and listed out different tutorials on R Data Frames.