When you load a new data frame from a CSV, you want to get an understanding of what the data looks like.
If the data frame is small, you can display it by typing its name df
. If the data frame is larger, it can be helpful to inspect a few rows of the data frame without having to look at the rest of it.
The head()
function returns the first 6 rows of a data frame. If you want to see more rows, you can pass an additional argument n
to head()
. For example, head(df,8)
will show the first 8
rows.
The function summary()
will return summary statistics such as mean, median, minimum and maximum for each numeric column while providing class and length information for non-numeric columns.
Instructions
View the entire data frame by typing artists
in the empty code block and running the code.
Within the same code block, inspect artists
using head()
. How many rows are returned?
Still within the same code block, call summary()
on artists and run the code to view the summary statistics of the data frame.