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Harvey Rael


Con actividad desde 2018

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Estadística

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Is there a way to plot a contour with a 3-Dimensional matrix?
All have been helpful - I was being stupid. I think I can loop through the third dimension of the matrix, and keep hold on and c...

más de 6 años hace | 0

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Genetic Algorithm - Case by Case Optimization
Hi All, I may be asking a stupid question, but is there a way to optimize on a case by case basis without needing to change t...

más de 6 años hace | 0 respuestas | 0

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Is there a way to plot a contour with a 3-Dimensional matrix?
Hi, I've asked a lot of questions here recently but I am coming to the business end of my project and the stuff I am trying t...

más de 6 años hace | 3 respuestas | 0

3

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Changing elements of an array by row and column using for loop?
Hi all, So essentially I am trying to correct some acos mistakes in an 180x40 array. I want to run through each element of th...

más de 6 años hace | 1 respuesta | 0

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[DEPRECATED] What frustrates you about MATLAB?
Has anyone tried to measure angles between a huge amount of vectors, by engineering convention? My first vector I need to mea...

más de 6 años hace | 0

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Numerical instability of acos
Hi, I have a bunch of vectors that I wish to calculate the angle between in a 2-D case, but I am finding that where I know th...

más de 6 años hace | 1 respuesta | 0

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How to change Crossover Function in GA midway through solving?
Hi all, I have a GA setup to search for a minimum of a problem. I think my problem is well defined, except it has many local ...

más de 6 años hace | 1 respuesta | 0

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Minimizing a set of known values?
Hi All, I can attach the code I am working on if it helps but my question is more general than that. I am looking to minimize...

más de 6 años hace | 0 respuestas | 0

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Relating outputs of parent function to inputs of nested function
Hi, I am going to try and explain myself simply in the hopes of getting a simple answer. Let's say I have a function 'calcula...

más de 6 años hace | 0 respuestas | 0

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Plotting the left and right side of a tricky equation?
Hi, I am trying to find the intersection betweeen two sides of an equation that include some tricky trigonometric terms by plott...

más de 6 años hace | 1 respuesta | 0

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Minimum value of select cell elements?
I found a way to extract the values into a matrix, rather nicely for myself for those wondering. Appreciate all efforts that wen...

más de 6 años hace | 0

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Minimum value of select cell elements?
I have a cell array that is 20x50. And inside each cell, there is a 200x1 column vector. Of interest to me is the 200th element ...

más de 6 años hace | 3 respuestas | 0

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Measure angles between two vectors solely counter - clockwise
Hi, I have two vectors and I want to measure the angle between them. The first one lies solely along the positive x-axis, and...

más de 6 años hace | 3 respuestas | 0

3

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Numerically integrating a symbolic equation in a for loop?
Fixed it - simply needed to flick the 'ArrayValued' setting in integral to true.

más de 6 años hace | 0

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Numerically integrating a symbolic equation in a for loop?
Hi! I'll try to explain qualitatively first what I am trying to do before then giving code. I have an equation that depends on a...

más de 6 años hace | 2 respuestas | 0

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How to optimise a definite integral?
In the attached image, I want to optimize the function Dt, as I know the end result of the integral. I have expressions for k1 a...

más de 6 años hace | 3 respuestas | 0

3

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How do I use GA to optimize the variables, while keeping the objective function at a certain point?
So, I have a function that contains 3 variables (for arguments sake x1,x2,x3) and I want to find the optimal values for the func...

más de 6 años hace | 1 respuesta | 0

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Undefined function or variable error even though function is saved
**Update** : MATLAB is a cruel mistress. I turned off my computer last night after many attempts (and after asking this question...

más de 6 años hace | 0

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Undefined function or variable error even though function is saved
Keep getting the message "undefined function or variable"..I'm trying to create this function to pass to a genetic algorithm to ...

más de 6 años hace | 1 respuesta | 0

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