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Rikke


Active since 2019

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How to extend array?
I want to extend an array like this: A = [1 2 3 4]; B = [2 3 5 7]; C =[1 1 2 2 2 3 3 3 3 3 4 4 4 4 4 4 4]; How could I do ...

meer dan 5 jaar ago | 1 answer | 0

1

answer

Question


How to add x-axis in the bottom or in the top of a figure?
I have a graph were I want to have both an x-axis for time and another showing distance. Is there some easy way to do this? I ...

meer dan 5 jaar ago | 1 answer | 0

1

answer

Answered
How to extend/add elements to an array?
I got the solution for B= [3 2 3 5]. Thanks Andrei! A=[2 3 4 5 0 1 4 5 5 0 3 4 0 2 0 ]; B=[3 2 3 5]; jj = find(A == 0); out ...

meer dan 5 jaar ago | 0

Question


How to extend/add elements to an array?
I want to extend an array at the points were the array are 0. For example an array like this: A=[2 3 4 5 0 1 4 5 5 0 3 4 0 2 ...

meer dan 5 jaar ago | 2 answers | 0

2

answers

Question


How to sum spesific numbers in an array?
Array like this: A=[1 2 1 1 0 2 2 0 0 2 1 0 2 1 1 0 0]; How to sum every number between each zero occurence like this: B=[5 0...

meer dan 5 jaar ago | 1 answer | 0

1

answer

Question


How to make some optimization variables equal to each other?
I want that some spesific variables that are to be optimized, are to be equal to each other. lets say that i want this: x(1)=x(...

meer dan 5 jaar ago | 1 answer | 0

1

answer

Question


How to make a new array based on two arrays?
A=[1 4 3 1 5 9 1 11 14 15 16]; B=[1 4 3 1 5 6 7 8 9 1 11 12 13 14 15 16]; How to make a new array like this: C=[1 4 3 1 5 nan...

meer dan 5 jaar ago | 1 answer | 0

1

answer

Question


Remove some numbers from an array and replace them with zero?
Lets say the array is like this: A = [4 4 4 4 6 6 6 6 6 6 2 2 3 3 3 5 5 5 5 5 3 3 3]; How could I change the matrix to be like...

meer dan 5 jaar ago | 1 answer | 0

1

answer

Question


how to solve many polynomial equations listed in a matrix?
I have a matrix where each row is a polynomial equation: A=[0.01 620.085 -3750 0.01 620.082 -3750 0.01 620.079 -3...

meer dan 5 jaar ago | 2 answers | 0

2

answers

Question


Is it possible to constrain the unknown x in an optimization problem to be rounded up to 1 when it originally is a value between 0 and 1?
I use the fmincon function and have set the lower bound to be 0 and upper bound to be 1. I want the values that are optimized to...

meer dan 5 jaar ago | 1 answer | 0

1

answer

Question


Is it possible to detect and replace abnormal/wrong numbers in an array?
I have a dataset which is an array containing values, and which are plotted in the figure below. A section of the array for the ...

meer dan 5 jaar ago | 2 answers | 0

2

answers

Question


How to group an array and then replace each group with different numbers?
Example of array: A = [1 1 1 0 0 0 1 0 0 1 0 1 1 0 0 ]; Wanted array: B = [1 1 1 4 4 4 1 5 5 1 6 1 1 3 3]; Is is possible to s...

meer dan 5 jaar ago | 2 answers | 0

2

answers

Question


How to automatically constrain some of the unknown values in an optimization problem?
I have an optimization problem with several unknown values (x) which is a part of an array: A=[0 0 x(1) x(2) 0 0 0 x(3) x(4) x(...

meer dan 5 jaar ago | 2 answers | 0

2

answers

Question


How to replace some values in an array with zero and some with values from another array?
A = [2 4 0 0 5 3 0 2 1 0 2]; B = [1 1 0 1]; I want to replace numbers in A greater than 0 with 0, and numbers in A which is 0 ...

meer dan 5 jaar ago | 2 answers | 0

2

answers