view test/range.tst @ 28240:2fb684dc2ec2

axis.m: Implement "fill" option for Matlab compatibility. * axis.m: Document that "fill" is a synonym for "normal". Place "vis3d" option in documentation table for modes which affect aspect ratio. Add strcmpi (opt, "fill") to decode opt and executed the same behavior as "normal".
author Rik <rik@octave.org>
date Fri, 24 Apr 2020 13:16:09 -0700
parents bd51beb6205e
children 715344f405f0 0a5b15007766
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########################################################################
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## Copyright (C) 2007-2020 The Octave Project Developers
##
## See the file COPYRIGHT.md in the top-level directory of this
## distribution or <https://octave.org/copyright/>.
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## This file is part of Octave.
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## Octave is free software: you can redistribute it and/or modify it
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## Test values of range

%!assert (full (1:9), [ 1 2 3 4 5 6 7 8 9 ])
%!assert (full (1:0.4:3), [ 1.0 1.4 1.8 2.2 2.6 3.0 ])
%!assert (full (9:1), zeros (1,0))
%!assert (full (9:-1:1), [ 9 8 7 6 5 4 3 2 1 ])
%!assert (full (1:-1:9), zeros (1,0))
%!assert (full (1:1:1), 1)
%!assert (full (i:2i:10i), zeros (1,0))

## Test mixing integer range with other types

%!shared expect, r, z
%! expect = [ 1 2 3 4 5 6 7 8 9
%!            0 0 0 0 0 0 0 0 0 ];
%! z = zeros (1,9);
%! r = 1:9;

%!assert ([ r ; z                  ], expect)
%!assert ([ r ; single(z)          ], single (expect))
%!assert ([ r ; logical(z)         ], expect)
%!assert ([ r ; sparse(z)          ], sparse (expect))
%!assert ([ r ; sparse(logical(z)) ], sparse (expect))

%!assert ([ r ; int8(z)            ], int8 (expect))
%!assert ([ r ; int16(z)           ], int16 (expect))
%!assert ([ r ; int32(z)           ], int32 (expect))
%!assert ([ r ; int64(z)           ], int64 (expect))
%!assert ([ r ; uint8(z)           ], uint8 (expect))
%!assert ([ r ; uint16(z)          ], uint16 (expect))
%!assert ([ r ; uint32(z)          ], uint32 (expect))
%!assert ([ r ; uint64(z)          ], uint64 (expect))

## Test mixing non-integer range with other types

%!shared expect, r, z
%! expect = [ 1.0 1.4 1.8 2.2 2.6 3.0
%!            0   0   0   0   0   0   ];
%! z = zeros (1,6);
%! r = 1:0.4:3;

%!assert ([ r ; z                  ], expect)
%!assert ([ r ; single(z)          ], single (expect))
%!assert ([ r ; logical(z)         ], expect)
%!assert ([ r ; sparse(z)          ], sparse (expect))
%!assert ([ r ; sparse(logical(z)) ], sparse (expect))

%!assert ([ r ; int8(z)            ], int8 (expect))
%!assert ([ r ; int16(z)           ], int16 (expect))
%!assert ([ r ; int32(z)           ], int32 (expect))
%!assert ([ r ; int64(z)           ], int64 (expect))
%!assert ([ r ; uint8(z)           ], uint8 (expect))
%!assert ([ r ; uint16(z)          ], uint16 (expect))
%!assert ([ r ; uint32(z)          ], uint32 (expect))
%!assert ([ r ; uint64(z)          ], uint64 (expect))

## Test corner cases of ranges (base and limit)

%!shared r, rrev, rneg
%! r = -0:3;
%! rrev = 3:-1:-0;
%! rneg = -3:-0;

%!assert (full (r), [-0 1 2 3])
%!assert (signbit (full (r)), logical ([1 0 0 0]))
%!assert (r(1), -0)
%!assert (signbit (r(1)), true)
%!assert (signbit (r(1:2)), logical ([1 0]))
%!assert (signbit (r(2:-1:1)), logical ([0 1]))
%!assert (signbit (r([2 1 1 3])), logical ([0 1 1 0]))

%!assert (full (rrev), [3 2 1 -0])
%!assert (signbit (full (rrev)), logical ([0 0 0 1]))
%!assert (rrev(4), -0)
%!assert (signbit (rrev(4)), true)
%!assert (signbit (rrev(3:4)), logical ([0 1]))
%!assert (signbit (rrev(4:-1:3)), logical ([1 0]))
%!assert (signbit (rrev([1 4 4 2])), logical ([0 1 1 0]))

%!assert (min (r), -0)
%!assert (signbit (min (r)), true)
%!assert (min (rrev), -0)
%!assert (signbit (min (rrev)), true)

%!assert (max (rneg), -0)
%!assert (signbit (max (rneg)), true)

%!assert (sort (r, "descend"), [3 2 1 -0])
%!assert (signbit (sort (r, "descend")), logical ([0 0 0 1]))
%!assert (signbit (sort (rrev, "ascend")), logical ([1 0 0 0]))

## Test mathematical operations (also, non-finite values and 0)
%!shared r
%! r = 1:5;

%!assert (-r, -1:-1:-5)
%!assert (1 + r, 2:6)
%!assert (Inf + r, Inf (1,5))
%!assert (NaN + r, NaN (1,5))
%!assert (r + 1, 2:6)
%!assert (r + Inf, Inf (1,5))
%!assert (r + NaN, NaN (1,5))
%!assert (1 - r, 0:-1:-4)
%!assert (Inf - r, Inf (1,5))
%!assert (NaN - r, NaN (1,5))
%!assert (r - 1, 0:4)
%!assert (r - Inf, -Inf (1,5))
%!assert (r - NaN, NaN (1,5))
%!assert (2 * r, 2:2:10)
%!assert (0 * r, zeros (1,5))
%!assert (Inf * r, Inf (1,5))
%!assert (NaN * r, NaN (1,5))
%!assert (r * 2, 2:2:10)
%!assert (r * 0, zeros (1,5))
%!assert (r * Inf, Inf (1,5))
%!assert (r * NaN, NaN (1,5))

## Test sorting of ranges (bug #45739)
%!shared r, rrev
%! r = 1:2:10;
%! rrev = 10:-2:1;

%!assert <*45739> (sort (r, "descend"), [9 7 5 3 1])
%!assert <*45739> (sort (rrev, "ascend"), [2 4 6 8 10])

## Test final value within eps of an integer (bug #46859)
%!test <*46859>
%! rng = 1 : (1001/250)/(1/250);
%! assert (rng(end), 1001);

%!test <*46859>
%! rng = 2000: -1 : (1001/250)/(1/250);
%! assert (rng(end), 1001);

## This is not Matlab compatible (stops at 1000 with 999 elements)
## Octave prefers the more intuitive "pure math" approach where
## (1001/250) / (1/250) => (1001/250)*(250/1) => 1001.
%!test <*46859>
%! rng = 1 : (1001/250)/(1/250);
%! assert (numel (1000));