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**Content Feed**

Question

Why does the table command change display format?

I set the display format to "short" because I want that 4 digits are shown after the decimal point, like 0.3124. I crate a "tabl...

1 month ago | 1 answer | 0

### 1

answerQuestion

Saving a structure array, not fields of it

I have a structure array called s1 in the Workspace. I want to save it as it is so that when I load it, I want to see just s1 in...

3 months ago | 1 answer | 0

### 1

answerQuestion

Why DerivativeCheck would be allowed to be on while there is no GradObj?

When GradObj is off, and DerivativeCheck is on, fmincon starts to run without any error or warning. Why would this be the case? ...

4 months ago | 4 answers | 2

### 4

answersQuestion

Why does an array have a different column dimension than the array used to define that array?

I enclose a m file and a small data file. A is a column array with dimension 3233 by 1. B is a column array defined using A and ...

4 months ago | 1 answer | 0

### 1

answerQuestion

Right-hand text limit does not appear in script file

I have several script files. In some the right-hand text limit appears while in few others it does not. When I delete some code ...

5 months ago | 1 answer | 0

### 1

answerQuestion

MATLAB Add AWS Credentials error

I am trying to setup an AWS account within MATLAB. I get the error in the enclosed screenshot. Can anyone help?

1 year ago | 0 answers | 0

### 0

answersQuestion

Do I need to initiate the parallel computing toolbox for my code to run on multiple cores?

I have a function that I minimize using fmincon. I am exploring the possibility of making my code run faster. I got rid of all f...

1 year ago | 1 answer | 0

### 1

answerQuestion

Why Halton draws do not lead to standard normal draws?

fun.m is a function generating Halton draws and standard normal draws based on that. Copyright information: the function is a si...

1 year ago | 0 answers | 0

### 0

answersQuestion

Why does my objective function return complex?

I have a likelihood function that I need to minimize. I use fmincon to search for the minimum. Iterations of fmincon sometimes s...

1 year ago | 1 answer | 0

### 1

answerQuestion

Can this for loop be vectorized?

The for loop below runs over the third dimension (page) to fill the alpha array. Is it possible to vectorize this for loop? al...

1 year ago | 1 answer | 0

### 1

answerQuestion

Can MATLAB be made cheaper?

I use MATLAB intensively for econometric research but also teaching. There is an increasing pressure or recommendation from both...

1 year ago | 2 answers | 0

### 2

answersIs it possible to publish MATLAB code that can be executed online?

I managed to publish my code as html. Please see https://matlab.mathworks.com/users/mwa0000001754528/Published/html/exercisesims...

1 year ago | 0

Question

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...

1 year ago | 1 answer | 1

### 1

answerQuestion

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 ...

1 year ago | 1 answer | 0

### 1

answerQuestion

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...

1 year ago | 1 answer | 0

### 1

answerQuestion

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 ...

1 year ago | 0 answers | 0

### 0

answersQuestion

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...

2 years ago | 0 answers | 0

### 0

answersQuestion

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...

2 years ago | 1 answer | 0

### 1

answerQuestion

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(...

2 years ago | 1 answer | 0

### 1

answerQuestion

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...

2 years ago | 2 answers | 1

### 2

answersQuestion

Link to MATLAB documentation

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

4 years ago | 1 answer | 0

### 1

answerQuestion

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 ...

4 years ago | 1 answer | 0

### 1

answerQuestion

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...

4 years ago | 0 answers | 0

### 0

answersQuestion

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 ...

4 years ago | 1 answer | 0

### 1

answerQuestion

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...

4 years ago | 1 answer | 0

### 1

answerQuestion

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...

4 years ago | 1 answer | 0

### 1

answerQuestion

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...

4 years ago | 1 answer | 0

### 1

answerQuestion

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...

5 years ago | 0 answers | 0

### 0

answersQuestion

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 ...

5 years ago | 2 answers | 0

### 2

answersQuestion

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...

5 years ago | 2 answers | 0