Answered
Classification Score "fitcensemble" with Decision Trees - Ambiguous Matlab Documentation
The statement about score in Output Arguments section of compact classification ensemble is about individual trees. Trees do ind...

3 months ago | 0

Answered
Find a fixed accuracy using confusion matrix.
You can set the random seed to get predictable results, as follows rng(1234); Check the rng documentation.

3 months ago | 0

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Is it possible to calculate the importance of the input variable using weights, beta and bias calculated by SVM and NN?
In case of SVM, it's generally not possible to calculate feature importance. You can find more details regarding this here. In c...

3 months ago | 0

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Answered
Cylinder fit to pointcloud
You can use various parameters to control the output of the function. For example, try providing a reference vector and decreasi...

3 months ago | 0

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I am getting different accuracy after each run in DNN.
Set a random seed using the rng function. Otherwise, during each run, a different random seed might be selected, resulting in di...

3 months ago | 0

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unable to import EfficientNet from onnx
R2020a does not support the required operator for EfficientNet. This is a known issue, and might be fixed in any future release....

3 months ago | 0

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Calculating RMSE for single variable time series data
There are various ways to approach this problem. If there was one and only one row from each date and cycle combination, this c...

3 months ago | 0

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Loading multiple datasets to the classification learner app
Combine the datasets together, either as a table or as a matrix, and load it into classification learner. More details on using ...

3 months ago | 0

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Cannot open csv files in Matlab classification learner app after upgrading my Mac OS to Mac Catalina
This is a known issue and might be resolved in a future release. Meanwhile, you can look at some of the workaround provided for ...

3 months ago | 0

Answered
Quadratic SVM for feature selection
In general, SVM can't be used to determine feature importance. You can read more about this in this answer. There are various fe...

3 months ago | 0

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How to stratify covariates in coxphfit function?
It is possible to specify a column for stratification, as in following example, load('lightbulb.mat'); b = coxphfit(lightbulb(...

3 months ago | 0

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Answered
How can I change weights of inputs in Fitcecoc for every binary classifiers?
In this case, the binary learners are Trees, specifically CompactClassificationTree. A tree does not have weights. Instead, it h...

3 months ago | 0

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Binary Logistic Regression Curve
Use the fitglm function to fit logistic regression model to data. Check the following code for example, % Create random data x...

3 months ago | 1

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Answered
How do I find or visualise the top features used for SVM classifier?
It's not possible to determine feature importance in SVM model, unless you use linear kernel. You can read more about this in th...

3 months ago | 0

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How to get validation posterior probabilities from CVSVM classifier
I understand that you want to predict posterior probabilities for testing data on the CVSVM model. However, the intention of Cro...

3 months ago | 0

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Answered
machine learning normalizing data
I understand that you want to consider OCC as categorical data. Use the categorical function to create a categorical array from ...

4 months ago | 0

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Error in port widths or dimensions. Invalid dimension has been specified for input ' SFunction '.
You need to ensure that the various matrices you use are of appropriate shape, so that substraction is possible. For example, if...

5 months ago | 0

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Generated code for word size 16bit / 32bit
If both the hardware support the 16 bit setting, then you should have no issues with running the code. If possible, create two d...

5 months ago | 1

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Answered
I have a little problem when I try to run my custom library for Arduino on matlab.
You are getting out of memory error. This happens when you allocate more memory than in available on the system. For tips on how...

5 months ago | 0

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How to apply fit-function on variable
You can pass the new data to the fitobject. See the example below, x = sin(1:10)'; x2 = cos(1:10)'; y = (1:10)'; curve = fit...

5 months ago | 1

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Answered
How to access .csv files in a .tar.gz file?
You can call a function recursively on the folder, and process the files which match your requirement. See https://www.mathworks...

5 months ago | 0

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How to use a trained kNN model from Classification APP NEW DATA.
Once you export the model to workspace, you can predict on new data as follows, y = trainedModel.predictFcn(X); %where X is new...

5 months ago | 0

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Why different feature selection functions give so different results?
Selected features will differ due to both algorithmic differences, as well as nature of data. To give an hypothetical example, i...

5 months ago | 0

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Answered
Error with new version of readtable (R2020a)
The issue is with file encoding. However, it won't be possible for me to tell what encoding is appropriate as this should be men...

5 months ago | 0

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How to interpret the coefficients of the LDA function fitcdiscr for dimensionality reduction?
When you use fitcdiscr function, it returns the model that best seperates the classes. You can check the documentation for Class...

5 months ago | 0

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Is there a 'DeltaPredictor' (output in linear discriminant analysis) equivalent in other classification algorithms (SVM and KNN)?
Sometimes due to the nature of the underlying model itself, it might not be possible to determine feature importance. For those ...

5 months ago | 0

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Answered
Cross validation settings for Classification Discriminant models
When you use the crossval function, it creates a partioned model with KFold set to default value of 10. Currently, it's not poss...

5 months ago | 0

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How to generate an ellipse using the insertShape Function?
This feature is not available as of now. You can create an ellipse by approximating the polygon.

5 months ago | 0

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confusion matrix for multinational regression analysis
You can use mnrval to get the probabilities of each class. These probabilities can then be used to get class prediction, and tho...

5 months ago | 0

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Is it possible to simulate a classifiers behaviour?
I understand that you would like to have options for interpreting the results in real time. Currently, it's not possible to vis...

5 months ago | 0

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