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Darlington Mensah


Last seen: presque 3 ans il y a |  Actif depuis 2016

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Question


Minimum least square fitting with multiple variable
Hello I am trying to fit my data with a linear trend using MLS fitting. However, I don't understand how the initial guess affec...

plus de 5 ans il y a | 1 réponse | 0

1

réponse

Question


How to effectively reorder data
I have unordered coordinates and when i order it by doing th following, contorno = readtable('HJ_00-01.xlsx'); contx = table2a...

plus de 5 ans il y a | 3 réponses | 0

3

réponses

Question


Sorting of geographic coordinates
I have an excel file with X - Y coordinates. Plotting the file using the scatter plot, i get this: Howerver, when I plot ...

plus de 5 ans il y a | 1 réponse | 0

0

réponse

Question


Return true if only one element in matrix is nonzero
How do I find out if my matrix contains only one non-zero element and return true, if not false. Such that 0 0 0 0 0 ...

presque 6 ans il y a | 1 réponse | 0

1

réponse

Question


Matrix manupulation to get specific index
I have a matrix like this. 1 1 1 1 9 1 0 1 0 With my central value being 9 and i would like to find all the values...

presque 6 ans il y a | 1 réponse | 0

1

réponse

Question


Convert comma-separated decimal to point-separated decimal
I have a table with 500 rows and 8 columns. The decimal separation is comma (,). However I would like to convert the separation ...

presque 7 ans il y a | 2 réponses | 0

2

réponses

Question


Fitting a function to a curve/dataset
I intend to find the function of best fit to my experimental function (γ_exp). I use the following code when I my fit function i...

plus de 7 ans il y a | 1 réponse | 0

1

réponse

Question


How to minimize a function without using a loop
I have an equation with 3 constant (Nug & Sill, Lag) and 2 variable (R[ranges from 1 to 4000], alpha[ranges from 1 to 2, step of...

plus de 7 ans il y a | 1 réponse | 0

1

réponse

A répondu
Code running very slow
I realized the major problem was organization of my code. I was performing calculation in a loop where it was absolutely unneces...

presque 8 ans il y a | 1

| A accepté

Question


Code running very slow
My code seems to run very slowly and I can't think of any way to make it faster. All my arrays have been preallocated. S is a la...

presque 8 ans il y a | 1 réponse | 0

1

réponse

Question


Optimization of matlab code
I am relatively new in MATLAB and my major problem is optimization. My code seems to run very slowly and I can't think of any w...

presque 8 ans il y a | 2 réponses | 0

2

réponses

Question


How do I execute my loop at a relatively short time?
It is taking like forever (over 6 hours) to execute a loop. The size of my variables are; Z = 2041211 element Distance = ...

presque 8 ans il y a | 1 réponse | 0

1

réponse

Question


How can i make my code run faster
Hi. Is there a better way of writing a nested loop? My code Works well but it takes about 7min to completely execute. fo...

presque 8 ans il y a | 1 réponse | 0

1

réponse