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nvanson1-Visitor
1-Visitor
September 15, 2015
Solved

return an array from another array

  • September 15, 2015
  • 2 replies
  • 3861 views

Hello everyone,

I have a question from extracting an array.

Suppose I have an array A=[0 0 0 0 1 1 1 1 1 1 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 2 2 2 2 2 2 2 2 2 2 2 2 2]

How can I extract a subarray B=[0 1 3 4 2]

I am new to mathcad. Thank you for your help in advance.

Son

Best answer by StuartBruff

NGUYEN Van Son wrote:

Hello everyone,

I have a question from extracting an array.

Suppose I have an array A=[0 0 0 0 1 1 1 1 1 1 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 2 2 2 2 2 2 2 2 2 2 2 2 2]

How can I extract a subarray B=[0 1 3 4 2]

I am new to mathcad. Thank you for your help in advance.

With a bit of programming.

Stuart

2 replies

S
StuartBruff23-Emerald VAnswer
23-Emerald V
September 16, 2015

NGUYEN Van Son wrote:

Hello everyone,

I have a question from extracting an array.

Suppose I have an array A=[0 0 0 0 1 1 1 1 1 1 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 2 2 2 2 2 2 2 2 2 2 2 2 2]

How can I extract a subarray B=[0 1 3 4 2]

I am new to mathcad. Thank you for your help in advance.

With a bit of programming.

Stuart

    M
    MikeArmstrong1-Visitor
    1-Visitor
    September 17, 2015

    Slight alternative to Stuarts method using a while loop.

    Mike

      N
      nvanson1-VisitorAuthor
      1-Visitor
      September 17, 2015

      hello Mike,

      Thank you very much for your response.

      Are the elements of array: Duplicate3(M)=(0 1 2 3) taken from the last value (I underlined below) of each similar sequence? or arbitrary?

      M:= (0 0 0 0 1 1 1 1 2 2 2 3 3 3 3 3 3)

      If no, how can we know that?

      And is the commande V<-- sort(M) is used to sort M?

      If yes, I dont need this because I want an array randomly , like N:=(0 0 0 8 8 8 8 10 10 10 5 5 5 5 5 5 1 1 1 1 1 1 1 )

      Thank you very much,

      NGUYEN

      M
      MikeArmstrong1-Visitor
      1-Visitor
      September 17, 2015

      A slight alternative which will return the duplicated values and non-duplicated values. No what was requested but could be of some use.

      Mike

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