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Why is fitcdiscr function much slower than classify?
It depends on what parameters you pass to either... fitcdiscr supports cross-validation and hyperparameter optimization, and eit...

más de 4 años hace | 0

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Can the rica function return an estimate of the unmixing matrix?
Yes, it does, if you have RICA reduce your original features to just 2, see this example in our doc: https://www.mathworks.com/h...

más de 4 años hace | 0

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SVM Model not working properly on test data
You are applying the predict function correctly, so there must be something wrong with your testData, probably the type in one c...

casi 5 años hace | 0

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Export trained models in coreML
Exporting MATLAB models into a format Python can read, or into the CoreML format is currently not supported. You could exploring...

casi 5 años hace | 1

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how to combine the output of two CNN networks into another CNN
DAG layers are not yet supported, but will be soon. See also https://www.mathworks.com/matlabcentral/answers/369328-how-to-use-m...

casi 5 años hace | 0

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How can I use fitcdiscr using my own covariance matrix?
The training of fitcdiscr is to estimate the covariance matrix. If you have the covariance matrix, makecdiscr can be used to gen...

casi 5 años hace | 1

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how to classify with svm
The table needs to have the various observations as rows. Alternatively to the ClassificationLearnerApp, you can train an SVM us...

casi 5 años hace | 1

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How can I incorporate spatially correlated data into linear mixed effect model which is fitlmematrix method I am trying to use?
The covariance matrix of the response in a linear mixed effects model has 2 components – a random effects component ( sigma^2)*s...

casi 5 años hace | 0

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How to detect trigger point of signal rising
You could apply the CUSUM algorithm. You can find an example with code at https://dsp.stackexchange.com/questions/30039/detect-t...

casi 5 años hace | 0

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Covariance terms using fitdist()
pd.ParameterCovariance(2,2) is the covariance of the variance of the estimated normal distribution. See https://www.mathworks...

casi 5 años hace | 0

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How to reuse activations of two concatenated layers into a new one
1) If you have R2017b, there is support for DAG networks. You'd extract the layers from the networks using the “Layers” property...

casi 5 años hace | 0

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moving shadow removal in video
This forum is meant to help you overcome a problem with a specific MATLAB function, or general guidance for a narrowly defined p...

casi 5 años hace | 0

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How can I enable english subtitles in Machine Learning course?
Unfortunately, these courses don't have subtitles.

casi 5 años hace | 0

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please in details can anyone explain this code of K means Segmentation?
You need to provide some more context, what are you trying to accomplish? Right now, this feels like a coding puzzle. By my inte...

casi 5 años hace | 0

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How can I get the the ward distance change to find an optimal number of clusters.
The evalclusters function determines the optimal number of clusters for you. ‘linkage’ will use agglomerative clustering as the ...

casi 5 años hace | 0

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MATLAB Code for K-Harmonic Means clustering
This algorithm is not supported in the Statistics and Machine Learning toolbox, only standard k-means with various distance func...

casi 5 años hace | 0

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Outputs of classifiers and how to measure confidence?
You could try using the predint or confint functions, see also https://www.mathworks.com/matlabcentral/answers/266432-how-to-plo...

casi 5 años hace | 0

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How to use fitcsvm in matlab classifications Brain tumor Mr image?(Benign,Malignant)
Can you illustrate what your data looks like, and where you get what type of error? And which release of MATLAB are you using? L...

casi 5 años hace | 0

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How to take first derivative and plot
You can use zscore to normalize, then diff to compute the differences, and then plot original and differences on the same plot (...

casi 5 años hace | 0

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How can i do k-fold cross validation with Matlab built-in k-mean?
Cross-validation is indeed typically used in the context of classification, since it's a method to measure accuracy on "unseen" ...

casi 5 años hace | 0

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How do I implement classification tree in Simulink?
Your question is pretty general, but here you can find guidance how to simulate neural networks in Simulink, or insert a neural ...

casi 5 años hace | 0

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how can I identify the features of my data x that mostly contribute to the classification of linear discriminant analysis?
The coefficient magnitude is a measure of predictor importance. After the training with normalized data (zero mean and unit vari...

casi 5 años hace | 1

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HOw to fix an Error in deep network configuration with images data sets
Currently, (deep) networks with multiple inputs are not supported in our framework, but we are working on that enhancement. A...

casi 5 años hace | 0

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glmfit optimization algorithm?
glmfit uses Fisher's scoring method, performing Maximum likelihood estimates with an iteratively reweighted least-squares algori...

casi 5 años hace | 0

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how to use multiple input layers in DAG net as shown in the figure
Modeling DAG graphs with multiple inputs and/or outputs is currently not supported in our deep learning framework, but we are wo...

casi 5 años hace | 0

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How to find average score of different combination
Your combinations don't define a proper partition of the data sets. The grpstats command does allow you to group data from a ...

casi 5 años hace | 0

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How to fit a model a=bx+cy form, for series of data?
If you interpret a=bx+cy as a linear equation with the scalars x,y as unknown (even though you said they are known), it's an ove...

casi 5 años hace | 0