Slice rows
Returns a DataFrame with rows at given indices:
df[0, 3, 4]Returns a DataFrame with rows inside given index ranges (including boundary indices):
df[1..2]
df[0..2, 4..5]Returns a DataFrame containing first n rows
df.take(5)Returns a DataFrame containing last n rows
df.takeLast(5)Returns a DataFrame containing first rows that satisfy the given condition
df.takeWhile { isHappy }Returns a DataFrame containing all rows except first n rows
df.drop(5)Returns a DataFrame containing all rows except last n rows
df.dropLast() // default 1
df.dropLast(5)Returns a DataFrame containing all rows except first rows that satisfy the given condition
df.dropWhile { !isHappy }