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Snoopy


Last seen: 28 days 前 |  自 2015 起处于活动状态

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已回答
What are the specifics of MATLAB home license?
To determine which add-ons cannot be used on Home license, - go to https://nl.mathworks.com/pricing-licensing.html?prodcode=ML...

8 months 前 | 0

提问


What are the specifics of MATLAB home license?
I would like to ask two quesitons. First, I am trying to understand the difference between home and professional version of MATL...

8 months 前 | 2 个回答 | 0

2

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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...

12 months 前 | 1 个回答 | 0

1

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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...

1 year 前 | 1 个回答 | 0

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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? ...

1 year 前 | 4 个回答 | 2

4

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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 ...

1 year 前 | 1 个回答 | 0

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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 ...

1 year 前 | 1 个回答 | 0

1

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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?

2 years 前 | 1 个回答 | 0

1

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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...

2 years 前 | 1 个回答 | 0

1

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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...

2 years 前 | 0 个回答 | 0

0

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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...

2 years 前 | 1 个回答 | 0

1

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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...

2 years 前 | 1 个回答 | 0

1

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

2 years 前 | 2 个回答 | 1

2

个回答

已回答
Is 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...

2 years 前 | 0

提问


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...

2 years 前 | 1 个回答 | 1

1

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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 ...

2 years 前 | 1 个回答 | 0

1

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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...

2 years 前 | 1 个回答 | 0

1

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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 ...

2 years 前 | 0 个回答 | 0

0

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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 前 | 0 个回答 | 0

0

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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 前 | 1 个回答 | 0

1

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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 前 | 1 个回答 | 0

1

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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...

3 years 前 | 2 个回答 | 1

2

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

5 years 前 | 1 个回答 | 0

1

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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 ...

5 years 前 | 1 个回答 | 0

1

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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...

5 years 前 | 1 个回答 | 0

1

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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 ...

5 years 前 | 1 个回答 | 0

1

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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...

5 years 前 | 1 个回答 | 0

1

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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...

5 years 前 | 1 个回答 | 0

1

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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...

5 years 前 | 1 个回答 | 0

1

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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...

6 years 前 | 0 个回答 | 0

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