Brendan Hamm
MathWorks
自 2015 起处于活动状态
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Random vector non repeated otherwise create new vector
p = perms(1:5); idx = randi([1,size(p,1)]); selection = p(idx,:)
Random vector non repeated otherwise create new vector
p = perms(1:5); idx = randi([1,size(p,1)]); selection = p(idx,:)
6 years 前 | 0
已回答
Is there a difference between declaring a class property "Dependent" versus "Dependent = true"?
There is no difference. For attributes which are binary (true/false) then just putting the attribute name is the same as togglin...
Is there a difference between declaring a class property "Dependent" versus "Dependent = true"?
There is no difference. For attributes which are binary (true/false) then just putting the attribute name is the same as togglin...
6 years 前 | 1
已回答
GradientDescent algorithm returning error: left and right side different number of elements
I would put a break point on the line: error = ((hypothesis - y).^2); I would assume that the size of hypothesis and y are dif...
GradientDescent algorithm returning error: left and right side different number of elements
I would put a break point on the line: error = ((hypothesis - y).^2); I would assume that the size of hypothesis and y are dif...
6 years 前 | 0
已回答
Exporting a figure with an opaque legend box but no visible edge
You can modify this by setting the EdgeColor to none. set(Lgd,'EdgeColor','none');
Exporting a figure with an opaque legend box but no visible edge
You can modify this by setting the EdgeColor to none. set(Lgd,'EdgeColor','none');
6 years 前 | 1
| 已接受
已回答
fitcsvm decision boundary equation
Generate some data for the classes rng('default') n = 100; X = [2 + 0.5*randn(n,2);... 3 + 0.6*randn(n,2)]; Y = [zeros(...
fitcsvm decision boundary equation
Generate some data for the classes rng('default') n = 100; X = [2 + 0.5*randn(n,2);... 3 + 0.6*randn(n,2)]; Y = [zeros(...
7 years 前 | 1
已回答
keep getting "too many output arguments" error while using the optimization tool box
Your non-linear constraint function needs to pass 2 output arguments back with the following calling signature: function [c,ceq...
keep getting "too many output arguments" error while using the optimization tool box
Your non-linear constraint function needs to pass 2 output arguments back with the following calling signature: function [c,ceq...
7 years 前 | 1
已回答
How many hours do MATLAB self-paced courses last about?
Each of the self-paced courses will show a "detailed course outline" on the course page. These will list the number of "days", w...
How many hours do MATLAB self-paced courses last about?
Each of the self-paced courses will show a "detailed course outline" on the course page. These will list the number of "days", w...
7 years 前 | 6
| 已接受
已回答
How do I make a polynomial regression of data points and afterwards calculate the prediction accuracy
I notice a few issues. Based on the second line of your portion, I assume that you mean to call the variable PressureDiffSquared...
How do I make a polynomial regression of data points and afterwards calculate the prediction accuracy
I notice a few issues. Based on the second line of your portion, I assume that you mean to call the variable PressureDiffSquared...
7 years 前 | 1
| 已接受
已回答
How plot a matrix for Naive Bayes classifier?
The |heatmap| function was introduced in 2017a. The |imagesc| function will work though. To display the numeric counts you will ...
How plot a matrix for Naive Bayes classifier?
The |heatmap| function was introduced in 2017a. The |imagesc| function will work though. To display the numeric counts you will ...
7 years 前 | 0
| 已接受
已回答
The is no 'linearFit' function
This is a helper function provided at the end of the documentation in the <https://www.mathworks.com/help/predmaint/examples/_...
The is no 'linearFit' function
This is a helper function provided at the end of the documentation in the <https://www.mathworks.com/help/predmaint/examples/_...
7 years 前 | 1
| 已接受
已回答
Good coding practice / refactoring to remove multiple inheritance
1. There is no "best" practice as this depends on why you made the initial decision to perform multiple inheritance and then lat...
Good coding practice / refactoring to remove multiple inheritance
1. There is no "best" practice as this depends on why you made the initial decision to perform multiple inheritance and then lat...
7 years 前 | 0
已回答
Is there any way to generate code for nntool?
The nntool does not allow this, but you can generate the code for setting up and training a classification problem, which I assu...
Is there any way to generate code for nntool?
The nntool does not allow this, but you can generate the code for setting up and training a classification problem, which I assu...
7 years 前 | 0
已回答
Problem with p-value calculation for Spearman's rho correlation analysis
I will notify the development team of your request. In the meantime, if anyone is experiencing the same issue, it may be worth e...
Problem with p-value calculation for Spearman's rho correlation analysis
I will notify the development team of your request. In the meantime, if anyone is experiencing the same issue, it may be worth e...
7 years 前 | 0
已回答
the H and P value of standard normal distribution
The lillietest tests the null hypothesis that the *data* comes from a normal distribution against the alternative that it does n...
the H and P value of standard normal distribution
The lillietest tests the null hypothesis that the *data* comes from a normal distribution against the alternative that it does n...
7 years 前 | 0
| 已接受
已回答
I am using Matlab R2016a. I want add alexnet but add on explorer not shown any thing what i do please suggest
You will need to upgrade to a new version of MATLAB as this was not released until R2016b.
I am using Matlab R2016a. I want add alexnet but add on explorer not shown any thing what i do please suggest
You will need to upgrade to a new version of MATLAB as this was not released until R2016b.
7 years 前 | 0
已回答
How can I post an order request via API?
Hi Fabio, Without a pair of keys myself I cannot duplicate the |auth| portion of this. I suspect this woudl be done with the ...
How can I post an order request via API?
Hi Fabio, Without a pair of keys myself I cannot duplicate the |auth| portion of this. I suspect this woudl be done with the ...
7 years 前 | 0
已回答
Weight and Bias from a Neural Network
I'm not sure why you would get a 0x1 empty double column vector. You may need to post some code to help figure this piece out. ...
Weight and Bias from a Neural Network
I'm not sure why you would get a 0x1 empty double column vector. You may need to post some code to help figure this piece out. ...
7 years 前 | 5
| 已接受
已回答
How to speed up code for converting an array of strings to array of numbers
I am not sure how much of a speedup to expect in the conversion, but I would highly consider using <https://www.mathworks.com/he...
How to speed up code for converting an array of strings to array of numbers
I am not sure how much of a speedup to expect in the conversion, but I would highly consider using <https://www.mathworks.com/he...
7 years 前 | 1
已回答
What is wrong with my while loop?
Your problem is that the result of X(:,:,1) == X(:,:,b) or X(:,:,1) ~= X(:,:,b) will return a logical matrix th...
What is wrong with my while loop?
Your problem is that the result of X(:,:,1) == X(:,:,b) or X(:,:,1) ~= X(:,:,b) will return a logical matrix th...
8 years 前 | 1
| 已接受
已回答
how to parallelize separate matrix-matrix multiplications?
Unless you are working on a cluster, I would not expect to see any speed up from parallelizing such operations. The reason for t...
how to parallelize separate matrix-matrix multiplications?
Unless you are working on a cluster, I would not expect to see any speed up from parallelizing such operations. The reason for t...
8 years 前 | 0
| 已接受
已回答
How to change XTick Labels in a heatmap
A |heatmap| stores the labels in the |XDisplayLabels| property. It is not a |matlab.graphics.axis.Axes|, but rather a |matlab.gr...
How to change XTick Labels in a heatmap
A |heatmap| stores the labels in the |XDisplayLabels| property. It is not a |matlab.graphics.axis.Axes|, but rather a |matlab.gr...
8 years 前 | 1
已回答
How do i normalize data in neural networks ? feauture by feature or hole data in one step?
Yes. Data would be normalized feature by feature as it would not make sense to divide something in units of C by something in un...
How do i normalize data in neural networks ? feauture by feature or hole data in one step?
Yes. Data would be normalized feature by feature as it would not make sense to divide something in units of C by something in un...
8 years 前 | 0
已回答
Non linear optimization using MATLAB
There is clearly an issue with the question as the provided solution does not provide a valid answer to the problem. That being ...
Non linear optimization using MATLAB
There is clearly an issue with the question as the provided solution does not provide a valid answer to the problem. That being ...
8 years 前 | 0
已回答
how can i make alexnet accept 277x277x1 images
You can resize an image with the |imresize| function. Now since your images are of size 277x277x1 I will assume they are graysca...
how can i make alexnet accept 277x277x1 images
You can resize an image with the |imresize| function. Now since your images are of size 277x277x1 I will assume they are graysca...
8 years 前 | 1
| 已接受
已回答
Saving strings of different sizes in one variable
This is where the cell data type is used. names = {'folder1 xxx\name 1.txt';'folder2 xxxxxxx\name 2.txt';name_3 = 'folder3 ...
Saving strings of different sizes in one variable
This is where the cell data type is used. names = {'folder1 xxx\name 1.txt';'folder2 xxxxxxx\name 2.txt';name_3 = 'folder3 ...
8 years 前 | 1
已回答
runtime for t-copulafit
Your best option is to change the method for negative log-likelihood calculations. This is only recommended for large samples. ...
runtime for t-copulafit
Your best option is to change the method for negative log-likelihood calculations. This is only recommended for large samples. ...
8 years 前 | 1
| 已接受
已回答
p values from correlation matrix using nancov
The corrcoef function accepts Name-Value pair inputs to handle missing data. [r,p] = corrcoeff(B,'rows','complete') ...
p values from correlation matrix using nancov
The corrcoef function accepts Name-Value pair inputs to handle missing data. [r,p] = corrcoeff(B,'rows','complete') ...
8 years 前 | 1
| 已接受
已回答
testing significan linier trend
If you are using a version equal to or later than 2013b than you can use the |fitlm| function which prints the relevant t-statis...
testing significan linier trend
If you are using a version equal to or later than 2013b than you can use the |fitlm| function which prints the relevant t-statis...
8 years 前 | 0
| 已接受
已回答
Monte Carlo for OLS histogram
You only ever assign to the 1st element of beta_hat. I think you need to recheck your code. 1. if you are intending to do |m|...
Monte Carlo for OLS histogram
You only ever assign to the 1st element of beta_hat. I think you need to recheck your code. 1. if you are intending to do |m|...
8 years 前 | 0
已回答
Binary solutions with GA
This will be a bit length to answer this question again, but I have provided a way you can solve this problem in a previous post...
Binary solutions with GA
This will be a bit length to answer this question again, but I have provided a way you can solve this problem in a previous post...
8 years 前 | 0
