• ← Part
• → Position

Pick

WMA link

Pick[list, sel]

returns those items in list that are True in sel.

Pick[list, sel, patt]

returns those items in list that match patt in sel.

• • Pick[{a, b, c}, {False, True, False}]

• • Pick[f[g[1, 2], h[3, 4]], {{True, False}, {False, True}}]

• • Pick[{a, b, c, d, e}, {1, 2, 3.5, 4, 5.5}, _Integer]