Difference between revisions of "Slice"

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[[Category:Functions that select part of an array]]
 
[[Category:Functions that select part of an array]]
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== Slice(A, I, n) ==
 
== Slice(A, I, n) ==

Revision as of 01:40, 27 January 2016


Slice(A, I, n)

Returns the «n»th slice of array «A» along index «I».

The Slice function is so commonly used, as is its associational counterpart, the Subscript function, that a special shorthand notation is more often used in Analytica expressions. Slice(A, I, n) can be written as A[@I = n].

Slice(A, n)

When «A» is one-dimensional, «I» can be omitted. Use this syntax when you want to obtain the «n»th element of a list, but cannot name the index since it is implicit.

Library

Array functions

Examples

Index I := [10, 20, 30, 40]
Index J := ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h']
Index K := 1..3
Variable A := Table(J)(9, 2, 3, 4, 1, 9, 0, 3)
Variable B := I + K
Slice(A, J, 5) → 1
Slice(A, J, 3..6) → [3, 4, 1, 9]
Slice(A, J, K) → Array(J, [9, 2, 3])
Slice(A, J, 8) → «null» {with an out-of-range warning}
Slice(A, I, 3) → Array(J, [9, 2, 3, 4, 1, 9, 0, 3])
Slice(B, I, 3) → Array(K,[31, 32, 33])
Slice(B, K, 3) → Array(I,[13, 23, 33, 43])
Slice(4, J, 5) → 4

See Also

Comments


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