Compilation of a 2d array and a 1d array
2
$begingroup$
With a list say {{x1,y1},{x2,y2}…} and a list {z1}, what is the best way to create a list {{x1,y1,z1},{x2,y2,z1},{x3,y3,z1}…}
list-manipulation
edited Apr 2 at 0:22
J. M. is away♦
98.9k10311467
asked Apr 1 at 18:49
tombom21tombom21
556
$endgroup$
add a comment |
2
$begingroup$
With a list say {{x1,y1},{x2,y2}…} and a list {z1}, what is the best way to create a list {{x1,y1,z1},{x2,y2,z1},{x3,y3,z1}…}
list-manipulation
edited Apr 2 at 0:22
J. M. is away♦
98.9k10311467
asked Apr 1 at 18:49
tombom21tombom21
556
$endgroup$
add a comment |
2
2
2
$begingroup$
With a list say {{x1,y1},{x2,y2}…} and a list {z1}, what is the best way to create a list {{x1,y1,z1},{x2,y2,z1},{x3,y3,z1}…}
list-manipulation
edited Apr 2 at 0:22
J. M. is away♦
98.9k10311467
asked Apr 1 at 18:49
tombom21tombom21
556
$endgroup$
With a list say {{x1,y1},{x2,y2}…} and a list {z1}, what is the best way to create a list {{x1,y1,z1},{x2,y2,z1},{x3,y3,z1}…}
list-manipulation
list-manipulation
edited Apr 2 at 0:22
J. M. is away♦
98.9k10311467
asked Apr 1 at 18:49
tombom21tombom21
556
edited Apr 2 at 0:22
J. M. is away♦
98.9k10311467
asked Apr 1 at 18:49
tombom21tombom21
556
edited Apr 2 at 0:22
J. M. is away♦
98.9k10311467
edited Apr 2 at 0:22
J. M. is away♦
98.9k10311467
edited Apr 2 at 0:22
J. M. is away♦
98.9k10311467
98.9k10311467
asked Apr 1 at 18:49
tombom21tombom21
556
asked Apr 1 at 18:49
tombom21tombom21
556
asked Apr 1 at 18:49
tombom21tombom21
556
556
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
5
$begingroup$
You can use PadRight:
PadRight[
{{x1, y1}, {x2, y2}},
{Automatic, 3},
z1
]
{{x1, y1, z1}, {x2, y2, z1}}
Or ArrayPad:
ArrayPad[
{{x1, y1}, {x2, y2}, {x3, y3}},
{{0,0},{0,1}},
z1
]
{{x1, y1, z1}, {x2, y2, z1}, {x3, y3, z1}}
answered Apr 1 at 18:56
Carl WollCarl Woll
72.6k396188
$endgroup$
add a comment |
1
$begingroup$
n = 1000000;
a = RandomReal[{-1, 1}, {n, 2}];
b = ConstantArray[0., 1];
c = Join[a, ConstantArray[b, Length[a]], 2]; // RepeatedTiming // First
0.016
answered Apr 1 at 18:54
Henrik SchumacherHenrik Schumacher
59.2k582164
$endgroup$
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
5
$begingroup$
You can use PadRight:
PadRight[
{{x1, y1}, {x2, y2}},
{Automatic, 3},
z1
]
{{x1, y1, z1}, {x2, y2, z1}}
Or ArrayPad:
ArrayPad[
{{x1, y1}, {x2, y2}, {x3, y3}},
{{0,0},{0,1}},
z1
]
{{x1, y1, z1}, {x2, y2, z1}, {x3, y3, z1}}
answered Apr 1 at 18:56
Carl WollCarl Woll
72.6k396188
$endgroup$
add a comment |
5
$begingroup$
You can use PadRight:
PadRight[
{{x1, y1}, {x2, y2}},
{Automatic, 3},
z1
]
{{x1, y1, z1}, {x2, y2, z1}}
Or ArrayPad:
ArrayPad[
{{x1, y1}, {x2, y2}, {x3, y3}},
{{0,0},{0,1}},
z1
]
{{x1, y1, z1}, {x2, y2, z1}, {x3, y3, z1}}
answered Apr 1 at 18:56
Carl WollCarl Woll
72.6k396188
$endgroup$
add a comment |
5
5
5
$begingroup$
You can use PadRight:
PadRight[
{{x1, y1}, {x2, y2}},
{Automatic, 3},
z1
]
{{x1, y1, z1}, {x2, y2, z1}}
Or ArrayPad:
ArrayPad[
{{x1, y1}, {x2, y2}, {x3, y3}},
{{0,0},{0,1}},
z1
]
{{x1, y1, z1}, {x2, y2, z1}, {x3, y3, z1}}
answered Apr 1 at 18:56
Carl WollCarl Woll
72.6k396188
$endgroup$
You can use PadRight:
PadRight[
{{x1, y1}, {x2, y2}},
{Automatic, 3},
z1
]
{{x1, y1, z1}, {x2, y2, z1}}
Or ArrayPad:
ArrayPad[
{{x1, y1}, {x2, y2}, {x3, y3}},
{{0,0},{0,1}},
z1
]
{{x1, y1, z1}, {x2, y2, z1}, {x3, y3, z1}}
answered Apr 1 at 18:56
Carl WollCarl Woll
72.6k396188
answered Apr 1 at 18:56
Carl WollCarl Woll
72.6k396188
answered Apr 1 at 18:56
Carl WollCarl Woll
72.6k396188
answered Apr 1 at 18:56
Carl WollCarl Woll
72.6k396188
72.6k396188
add a comment |
add a comment |
1
$begingroup$
n = 1000000;
a = RandomReal[{-1, 1}, {n, 2}];
b = ConstantArray[0., 1];
c = Join[a, ConstantArray[b, Length[a]], 2]; // RepeatedTiming // First
0.016
answered Apr 1 at 18:54
Henrik SchumacherHenrik Schumacher
59.2k582164
$endgroup$
add a comment |
1
$begingroup$
n = 1000000;
a = RandomReal[{-1, 1}, {n, 2}];
b = ConstantArray[0., 1];
c = Join[a, ConstantArray[b, Length[a]], 2]; // RepeatedTiming // First
0.016
answered Apr 1 at 18:54
Henrik SchumacherHenrik Schumacher
59.2k582164
$endgroup$
add a comment |
1
1
1
$begingroup$
n = 1000000;
a = RandomReal[{-1, 1}, {n, 2}];
b = ConstantArray[0., 1];
c = Join[a, ConstantArray[b, Length[a]], 2]; // RepeatedTiming // First
0.016
answered Apr 1 at 18:54
Henrik SchumacherHenrik Schumacher
59.2k582164
$endgroup$
n = 1000000;
a = RandomReal[{-1, 1}, {n, 2}];
b = ConstantArray[0., 1];
c = Join[a, ConstantArray[b, Length[a]], 2]; // RepeatedTiming // First
0.016
answered Apr 1 at 18:54
Henrik SchumacherHenrik Schumacher
59.2k582164
answered Apr 1 at 18:54
Henrik SchumacherHenrik Schumacher
59.2k582164
answered Apr 1 at 18:54
Henrik SchumacherHenrik Schumacher
59.2k582164
answered Apr 1 at 18:54
Henrik SchumacherHenrik Schumacher
59.2k582164
59.2k582164
add a comment |
add a comment |
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