last

Returns the last or the N last elements of an ordered container.

Syntax

• last(X)

  • X is an ordered container

The returned value is an lvalue.

• last(X, n)

  • X is an ordered container

  • n is a non-negative integer

Description

• If X is any ordered container (string, vector, matrix, list, structure, pixmap, or binary data object), then last(X) returns the last element of X.

• last(X, n) returns the last n elements of X, in order. If X is a linear container, then the type of the result is the type of X. Otherwise (if X is a matrix or a pixmap) the result is a list.

Examples

sort(frequencies(compute(RandomInt(1000000)^2, n, 1, 1000000) @ digits @ last))

(0, 99581)
(1, 200067)
(4, 200294)
(5, 99928)
(6, 200237)
(9, 199893)

Alice ≔ ExampleData("Alice in Wonderland") \ 50

ALICE’S ADVENTURES IN WONDERLAND

Lewis Carroll
…

sort(frequencies(words(Alice) @ characters @ last @ UpperCase))

(A, 679)
(B, 5)
(C, 8)
(D, 3207)
(E, 5732)
(F, 836)
(G, 1018)
(H, 658)
(I, 415)
(K, 379)
(L, 671)
(M, 332)
(N, 1791)
(O, 1314)
(P, 209)
(Q, 1)
(R, 1504)
(S, 2211)
(T, 3266)
(U, 363)
(V, 2)
(W, 356)
(X, 15)
(Y, 1416)

last(ColorGradient(1, 10, "white", "black"), 3)

rgba(0.224, 0.224, 0.224, 1.000)
rgba(0.110, 0.110, 0.110, 1.000)
rgba(0.000, 0.000, 0.000, 1.000)

See also

• part

• first