Drop

Drop[list,n]

gives list with its first n elements dropped.

Drop[list,-n]

gives list with its last n elements dropped.

Drop[list,{n}]

gives list with its n element dropped.

Drop[list,{m,n}]

gives list with elements m through n dropped.

Drop[list,{m,n,s}]

gives list with elements m through n in steps of s dropped.

Drop[list,seq1,seq2,]

gives a nested list in which elements specified by seqi have been dropped at level i in list.

Details

• Drop uses the standard sequence specification:
•  All all elements None no elements n elements 1 through n UpTo[n] elements 1 up to at most n, as available -n last n elements {n} element n only {m,n} elements m through n inclusive {m,n,s} elements m through n in steps of s
• Drop can be used on an object with any head, not necessarily List.
• For a matrix, Drop[list,seq1,seq2] effectively drops all elements except those in a submatrix of list.
• Drop works on SparseArray objects.
• Applying Drop to an Association object yields an Association with elements from the specified positions dropped.

Examples

open allclose all

Basic Examples(6)

Drop the first 2 elements from a list:

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Drop the last 3 elements:

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Drop elements 2 through 4:

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Drop the second element from an Association:

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Drop all but the first element from an Association:

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Drop every other element from 2 to 6 from an Association:

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