Julia - defining a 2 dimensional array with an array as element in one dimension

-1

I am trying to define an array with:

one dimension filled by another one dimensional array Int64

the other dimension filled by regular numbers Int64

How can I do this? The dimensions are x and y.

edited Mar 13 at 19:14

Seanny123

2,60943768

asked Nov 22 '18 at 1:47

Vasl

Your question seems contradictory, and appears to be asking for something that is not logically possible, or that makes no sense. Are you perhaps using the word 'dimension' wrong? And what do you mean by 'array' (vector, matrix or higher-dimensional)?

– DNF
Nov 22 '18 at 9:51

for example I want to define an array that is like this: arr1[i]=arr2[l, arr3[k]]. How do I define arr2?

– Vasl
Nov 22 '18 at 9:58

I think you are mixing up arrays and the indices of the arrays. What you wrote now just means "element number i in arr1 is set equal to element (l, arr3[k]) of arr2". It doesn't explain what is actually inside arr2, just that it is a 2-dimensional array, and that arr1 and arr3 are vectors.

– DNF
Nov 22 '18 at 10:11

the index of the array is another array yes

– Vasl
Nov 22 '18 at 10:16

arr3 is a vector, but we don't know what arr3[k] is, except that it is an element in arr3. I assume it is an integer number, since you are using it as an index.

– DNF
Nov 22 '18 at 10:19

|
show 8 more comments

-1

I am trying to define an array with:

one dimension filled by another one dimensional array Int64

the other dimension filled by regular numbers Int64

How can I do this? The dimensions are x and y.

edited Mar 13 at 19:14

Seanny123

2,60943768

asked Nov 22 '18 at 1:47

Vasl

Your question seems contradictory, and appears to be asking for something that is not logically possible, or that makes no sense. Are you perhaps using the word 'dimension' wrong? And what do you mean by 'array' (vector, matrix or higher-dimensional)?

– DNF
Nov 22 '18 at 9:51

for example I want to define an array that is like this: arr1[i]=arr2[l, arr3[k]]. How do I define arr2?

– Vasl
Nov 22 '18 at 9:58

I think you are mixing up arrays and the indices of the arrays. What you wrote now just means "element number i in arr1 is set equal to element (l, arr3[k]) of arr2". It doesn't explain what is actually inside arr2, just that it is a 2-dimensional array, and that arr1 and arr3 are vectors.

– DNF
Nov 22 '18 at 10:11

the index of the array is another array yes

– Vasl
Nov 22 '18 at 10:16

arr3 is a vector, but we don't know what arr3[k] is, except that it is an element in arr3. I assume it is an integer number, since you are using it as an index.

– DNF
Nov 22 '18 at 10:19

|
show 8 more comments

-1

I am trying to define an array with:

one dimension filled by another one dimensional array Int64

the other dimension filled by regular numbers Int64

How can I do this? The dimensions are x and y.

edited Mar 13 at 19:14

Seanny123

2,60943768

asked Nov 22 '18 at 1:47

Vasl

I am trying to define an array with:

one dimension filled by another one dimensional array Int64

the other dimension filled by regular numbers Int64

How can I do this? The dimensions are x and y.

julia

edited Mar 13 at 19:14

Seanny123

2,60943768

asked Nov 22 '18 at 1:47

Vasl

edited Mar 13 at 19:14

Seanny123

2,60943768

asked Nov 22 '18 at 1:47

Vasl

edited Mar 13 at 19:14

Seanny123

2,60943768

edited Mar 13 at 19:14

Seanny123

2,60943768

edited Mar 13 at 19:14

Seanny123

2,60943768

asked Nov 22 '18 at 1:47

Vasl

asked Nov 22 '18 at 1:47

Vasl

asked Nov 22 '18 at 1:47

Vasl

Your question seems contradictory, and appears to be asking for something that is not logically possible, or that makes no sense. Are you perhaps using the word 'dimension' wrong? And what do you mean by 'array' (vector, matrix or higher-dimensional)?

– DNF
Nov 22 '18 at 9:51

for example I want to define an array that is like this: arr1[i]=arr2[l, arr3[k]]. How do I define arr2?

– Vasl
Nov 22 '18 at 9:58

I think you are mixing up arrays and the indices of the arrays. What you wrote now just means "element number i in arr1 is set equal to element (l, arr3[k]) of arr2". It doesn't explain what is actually inside arr2, just that it is a 2-dimensional array, and that arr1 and arr3 are vectors.

– DNF
Nov 22 '18 at 10:11

the index of the array is another array yes

– Vasl
Nov 22 '18 at 10:16

arr3 is a vector, but we don't know what arr3[k] is, except that it is an element in arr3. I assume it is an integer number, since you are using it as an index.

– DNF
Nov 22 '18 at 10:19

|
show 8 more comments

Your question seems contradictory, and appears to be asking for something that is not logically possible, or that makes no sense. Are you perhaps using the word 'dimension' wrong? And what do you mean by 'array' (vector, matrix or higher-dimensional)?

– DNF
Nov 22 '18 at 9:51

for example I want to define an array that is like this: arr1[i]=arr2[l, arr3[k]]. How do I define arr2?

– Vasl
Nov 22 '18 at 9:58

I think you are mixing up arrays and the indices of the arrays. What you wrote now just means "element number i in arr1 is set equal to element (l, arr3[k]) of arr2". It doesn't explain what is actually inside arr2, just that it is a 2-dimensional array, and that arr1 and arr3 are vectors.

– DNF
Nov 22 '18 at 10:11

the index of the array is another array yes

– Vasl
Nov 22 '18 at 10:16

arr3 is a vector, but we don't know what arr3[k] is, except that it is an element in arr3. I assume it is an integer number, since you are using it as an index.

– DNF
Nov 22 '18 at 10:19

Your question seems contradictory, and appears to be asking for something that is not logically possible, or that makes no sense. Are you perhaps using the word 'dimension' wrong? And what do you mean by 'array' (vector, matrix or higher-dimensional)?

– DNF
Nov 22 '18 at 9:51

for example I want to define an array that is like this: arr1[i]=arr2[l, arr3[k]]. How do I define arr2?

– Vasl
Nov 22 '18 at 9:58

I think you are mixing up arrays and the indices of the arrays. What you wrote now just means "element number i in arr1 is set equal to element (l, arr3[k]) of arr2". It doesn't explain what is actually inside arr2, just that it is a 2-dimensional array, and that arr1 and arr3 are vectors.

– DNF
Nov 22 '18 at 10:11

the index of the array is another array yes

– Vasl
Nov 22 '18 at 10:16

arr3 is a vector, but we don't know what arr3[k] is, except that it is an element in arr3. I assume it is an integer number, since you are using it as an index.

– DNF
Nov 22 '18 at 10:19

|
show 8 more comments

2 Answers
2

active

oldest

votes

Your use of "dimension" is vague, but perhaps you want a Matrix{Number}:

julia> array = Matrix{Number}([1.5 2.5; 1 2])

2×2 Array{Number,2}:

 1.5  2.5

 1.0  2.0

answered Nov 22 '18 at 2:18

Bill

70146

add a comment |

your question is not clear. Another possible answer is that you need a Vector of Vectors (rather than a Matrix)

julia> arr = Vector{Int64}

0-element Array{Array{Int64,1},1}



julia> push!(arr,[1,2,3])

1-element Array{Array{Int64,1},1}:

 [1, 2, 3]



julia> push!(arr,[4,5,6])

2-element Array{Array{Int64,1},1}:

 [1, 2, 3]

 [4, 5, 6]

answered Nov 22 '18 at 2:24

Przemyslaw Szufel

2,827214

Thank you for your answer. I need to define an array that is 2-dimensional, (x, y) as dimensions and the first dimension is filled with numbers and the second with a one dimensional array.

– Vasl
Nov 22 '18 at 2:30

2

@Vasl What you've written here is still not precise. I suggest editing your question to include "psuedo-code" of what you are hoping your array will look like.

– Colin T Bowers
Nov 22 '18 at 2:57

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

Your use of "dimension" is vague, but perhaps you want a Matrix{Number}:

julia> array = Matrix{Number}([1.5 2.5; 1 2])

2×2 Array{Number,2}:

 1.5  2.5

 1.0  2.0

answered Nov 22 '18 at 2:18

Bill

70146

add a comment |

Your use of "dimension" is vague, but perhaps you want a Matrix{Number}:

julia> array = Matrix{Number}([1.5 2.5; 1 2])

2×2 Array{Number,2}:

 1.5  2.5

 1.0  2.0

answered Nov 22 '18 at 2:18

Bill

70146

add a comment |

Your use of "dimension" is vague, but perhaps you want a Matrix{Number}:

julia> array = Matrix{Number}([1.5 2.5; 1 2])

2×2 Array{Number,2}:

 1.5  2.5

 1.0  2.0

answered Nov 22 '18 at 2:18

Bill

70146

Your use of "dimension" is vague, but perhaps you want a Matrix{Number}:

julia> array = Matrix{Number}([1.5 2.5; 1 2])

2×2 Array{Number,2}:

 1.5  2.5

 1.0  2.0

answered Nov 22 '18 at 2:18

Bill

70146

answered Nov 22 '18 at 2:18

Bill

70146

answered Nov 22 '18 at 2:18

Bill

70146

answered Nov 22 '18 at 2:18

Bill

70146

add a comment |

your question is not clear. Another possible answer is that you need a Vector of Vectors (rather than a Matrix)

julia> arr = Vector{Int64}

0-element Array{Array{Int64,1},1}



julia> push!(arr,[1,2,3])

1-element Array{Array{Int64,1},1}:

 [1, 2, 3]



julia> push!(arr,[4,5,6])

2-element Array{Array{Int64,1},1}:

 [1, 2, 3]

 [4, 5, 6]

answered Nov 22 '18 at 2:24

Przemyslaw Szufel

2,827214

Thank you for your answer. I need to define an array that is 2-dimensional, (x, y) as dimensions and the first dimension is filled with numbers and the second with a one dimensional array.

– Vasl
Nov 22 '18 at 2:30

2

@Vasl What you've written here is still not precise. I suggest editing your question to include "psuedo-code" of what you are hoping your array will look like.

– Colin T Bowers
Nov 22 '18 at 2:57

add a comment |

your question is not clear. Another possible answer is that you need a Vector of Vectors (rather than a Matrix)

julia> arr = Vector{Int64}

0-element Array{Array{Int64,1},1}



julia> push!(arr,[1,2,3])

1-element Array{Array{Int64,1},1}:

 [1, 2, 3]



julia> push!(arr,[4,5,6])

2-element Array{Array{Int64,1},1}:

 [1, 2, 3]

 [4, 5, 6]

answered Nov 22 '18 at 2:24

Przemyslaw Szufel

2,827214

Thank you for your answer. I need to define an array that is 2-dimensional, (x, y) as dimensions and the first dimension is filled with numbers and the second with a one dimensional array.

– Vasl
Nov 22 '18 at 2:30

2

@Vasl What you've written here is still not precise. I suggest editing your question to include "psuedo-code" of what you are hoping your array will look like.

– Colin T Bowers
Nov 22 '18 at 2:57

add a comment |

your question is not clear. Another possible answer is that you need a Vector of Vectors (rather than a Matrix)

julia> arr = Vector{Int64}

0-element Array{Array{Int64,1},1}



julia> push!(arr,[1,2,3])

1-element Array{Array{Int64,1},1}:

 [1, 2, 3]



julia> push!(arr,[4,5,6])

2-element Array{Array{Int64,1},1}:

 [1, 2, 3]

 [4, 5, 6]

answered Nov 22 '18 at 2:24

Przemyslaw Szufel

2,827214

your question is not clear. Another possible answer is that you need a Vector of Vectors (rather than a Matrix)

julia> arr = Vector{Int64}

0-element Array{Array{Int64,1},1}



julia> push!(arr,[1,2,3])

1-element Array{Array{Int64,1},1}:

 [1, 2, 3]



julia> push!(arr,[4,5,6])

2-element Array{Array{Int64,1},1}:

 [1, 2, 3]

 [4, 5, 6]

answered Nov 22 '18 at 2:24

Przemyslaw Szufel

2,827214

answered Nov 22 '18 at 2:24

Przemyslaw Szufel

2,827214

answered Nov 22 '18 at 2:24

Przemyslaw Szufel

2,827214

answered Nov 22 '18 at 2:24

Przemyslaw Szufel

2,827214

Thank you for your answer. I need to define an array that is 2-dimensional, (x, y) as dimensions and the first dimension is filled with numbers and the second with a one dimensional array.

– Vasl
Nov 22 '18 at 2:30

2

@Vasl What you've written here is still not precise. I suggest editing your question to include "psuedo-code" of what you are hoping your array will look like.

– Colin T Bowers
Nov 22 '18 at 2:57

add a comment |

Thank you for your answer. I need to define an array that is 2-dimensional, (x, y) as dimensions and the first dimension is filled with numbers and the second with a one dimensional array.

– Vasl
Nov 22 '18 at 2:30

2

@Vasl What you've written here is still not precise. I suggest editing your question to include "psuedo-code" of what you are hoping your array will look like.

– Colin T Bowers
Nov 22 '18 at 2:57

Thank you for your answer. I need to define an array that is 2-dimensional, (x, y) as dimensions and the first dimension is filled with numbers and the second with a one dimensional array.

– Vasl
Nov 22 '18 at 2:30

@Vasl What you've written here is still not precise. I suggest editing your question to include "psuedo-code" of what you are hoping your array will look like.

– Colin T Bowers
Nov 22 '18 at 2:57

add a comment |

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