Split vector A into smaller vectors based on vector B

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I have two vectors of same lenght. Vector A contains angle data, and vector B contains gait phase (1=stand; 2=swing).

I want to split vector A into smallers vector for each individual gait cycle (1 stand + 1 swing).

My data is as follows:

Vector A Vector B

1.2 1

1.3 1

1.4 1

1.5 2

1.6 2

1.7 2

1.8 2

1.9 2

1.10 2

2.11 1

2.12 1

2.13 1

2.14 1

2.15 2

2.16 2

2.17 2

2.18 2

Then I want to split A into...

Vector C Vector D

1.2 2.11

1.3 2.12

1.4 2.13

1.5 2.14

1.6 2.15

1.7 2.16

1.8 2.17

1.9 2.18

1.10

Thank you!

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Answer 1

KSSV 2019-3-4

在 MATLAB Online 中打开

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A = [1.2                1
3                1
4                1
5                2
6                2
7                2
8                2
9                2
10              2
11              1
12              1
13              1
14              1
15              2
16              2
17              2
18              2    ]
A1 = A(A(:,2)==1,1)
A2 = A(A(:,2)==2,1)

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Francisco Anaya 2019-3-4

thank you. but can you write for when i have two vectors?

One is the vector data A, the other has the swing and stance phases vector B.

I want to cut vector A into full gait cycles of one 1 and one 2 in B.

hope this is clear

KSSV 2019-3-4

在 MATLAB Online 中打开

A1 = A(B==1) ;
A2 = A(B==2) ;

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Split vector A into smaller vectors based on vector B

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Split vector A into smaller vectors based on vector B

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