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Last seen: 2 Tage ago Active since 2015

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Histogram of overlaid standard normal draws
The code below overlays histograms of two sets of standard normal draws. I also attach the graph itself. These draws are based o...

3 Monate ago | 1 answer | 1

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Question

fmincon and the Objective function returned NaN warning
I minize the negative of a log-likehood function to estimate the parameters of a mixed logit regression model. I use fmincon to ...

3 Monate ago | 1 answer | 0

1

Question

GlobalSearch and fmincon options
I use GlobalSearch for minizing a function. I use fmincon as the solver. Does using fmincon as the solver mean that I can make u...

5 Monate ago | 1 answer | 0

1

Question

Lower and Upper bounds in GlobalSearch
I am maximizin a log-likelihood function in an empirical econometric research to estimate a mixed logit model. For this purpose ...

5 Monate ago | 0 answers | 0

0

Question

Generating independent Halton sequences in same session
I would like to create two Halton sequences which should be independent of each other. I use the code below. I am worried that t...

5 Monate ago | 0 answers | 0

0

Question

10 raised to the power
When I multiply two matrices element wise (which is probably not important to my question), some numbers appear as 3.40000000000...

5 Monate ago | 1 answer | 0

1

Question

Size of the unique elements and size of the output of accumarray
Why are the sizes of the two arrays, unique and accumarray, not the same? size(unique(MAT(:,1))) size(accumarray(MAT(:,1),MAT(...

5 Monate ago | 1 answer | 0

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Question

Is it possible to publish MATLAB code that can be executed online?
I have simple .m file. It contains a simulation that demonstrates the law of large numbers with a figure. What I want to do is t...

mehr als ein Jahr ago | 1 answer | 0

1

Question

In the MATLAB documentation, the "random" function is explained here https://nl.mathworks.com/help/stats/prob.normaldistribution...

fast 3 Jahre ago | 1 answer | 0

1

Question

Creating a function that returns multiple graphs
I would like to create a function that returns as output arguments two different histograms such that in the script file either ...

etwa 3 Jahre ago | 1 answer | 0

1

Question

Is there such a thing as MATLAB Markdown
Do I understand it correctly that MATLAB's Live Script is what R Markdown is for R? Otherwise how can I do what is done here htt...

etwa 3 Jahre ago | 0 answers | 0

0

Question

Why is the no evaluate selection button?
Why is there no "evaluate selection" button in the Editor menu that one always has to use the mouse to evaluate a selection, or ...

etwa 3 Jahre ago | 1 answer | 0

1

Question

Add surface based on two vectors in 3D plot
In the code below, my aim is to mark the span spanned by the vectors x1 and x2. So I need to add a 2D surface in the 3D plot ind...

mehr als 3 Jahre ago | 1 answer | 0

1

Question

Moving the labels of the z axis to the back of the 3D graph
In a 3D plot such as the one produced by scatter3, the labels of the z axis are displayed on the left of the plot. Is there a wa...

mehr als 3 Jahre ago | 1 answer | 0

1

Question

the isnumeric function and the NaN
I have a matrix array (A) that includes three column arrays. All columns contain integers except that one of the columns also in...

mehr als 3 Jahre ago | 1 answer | 0

1

Question

Is fminunc a too careful search algorithm?
I minimise a log-likelihood function in MATLAB, and it takes about five minutes. I wanted to see how much time it takes in other...

fast 4 Jahre ago | 0 answers | 0

0

Question

How to make conditional calculation?
I have two vectors, contained in matrix M, each with a dimension of 1000 by 1. Each vector contains integer numbers. The values ...

fast 4 Jahre ago | 2 answers | 0

2

Question

warning about optimset and using optimoptions
Hi, I use the fminunc function and the optimset as options = optimset('GradObj','on','MaxFunEvals',1000,'MaxIter',1000,'Dis...

etwa 4 Jahre ago | 2 answers | 0

2

Is MATLAB a compiler?
From the answers above, I understand that a compiler and interpreter are two very different things, and therefore it does not ma...

mehr als 4 Jahre ago | 0

Creating dummy variables from categorical variable
I would like to ask a question here. One should always vectorise the code where possible, as I read in the literature. But in th...

mehr als 4 Jahre ago | 0

Question

Is MATLAB a compiler?
I have been using MATLAB for some time but I am still not clear how MATLAB compares to some alternative software in the followin...

mehr als 4 Jahre ago | 3 answers | 1

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Question

Creating dummy variables from categorical variable
Suppose there is a column vector array n containing unique but repeating values of the form 1 1 5 7 7 The ...

mehr als 4 Jahre ago | 4 answers | 0

4

The "unique" function returns "Index exceeds matrix dimensions" error
Thanks a lot for the quick and detailed responses.

fast 5 Jahre ago | 0

Question

The "unique" function returns "Index exceeds matrix dimensions" error
I have a .mat file loaded in the Workspace. I execute the command unique = unique(datafile.data(:,2)); It creates the u...

fast 5 Jahre ago | 2 answers | 0

2

Why does MATLAB fail to load my preferred language on macOS Sierra?
Is language English, region Netherlands affected by the issue? Thanks.

mehr als 5 Jahre ago | 0

Question

Computation of the standard error of a FGLS coefficient estimate
Hi, I use the MATLAB code below to calculate the standard errors of the coeffficients estimated by Weighted Least Squares (WL...

etwa 6 Jahre ago | 0 answers | 0