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Thomas Kirsh


Last seen: 4 months ago |  Active since 2020

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MATLAB Crashes when trying to run "svmtrain" on CentOS
I'm trying to run some feature selection and classification models using libsvm on my university's supercomputer. I haven't had ...

7 months ago | 1 answer | 0

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Question


How can I use repeated, k-fold cross-validation results with rocmetrics?
I have 10-repeat 5-fold cross-validation scores and labels for a model that I'm trying to efficiently plot ROC curves for usine ...

1 year ago | 1 answer | 0

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Answered
How can I split a continuous target into a train/test set such that the mean and standard deviation are the same?
The way to do it is to bin the target into bins depending on what makes sense for your target. target = randn(100, 1); binn...

1 year ago | 0

Question


How can I split a continuous target into a train/test set such that the mean and standard deviation are the same?
I'm trying to do an 80-20 split on my target so that the distributions are the same. I've tried using cvpartition but I don't be...

1 year ago | 1 answer | 0

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Question


Get Shapley values for the whole model
I'm trying to get the Shapley values for my classification model so that I can estimate the feature importances. However, based ...

1 year ago | 1 answer | 0

1

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Question


Inherit or Copy ClassificationLinear
I'm trying to use shapley to get the Shapley values for my logistic regression model. However, I got my model using glmfit and j...

1 year ago | 1 answer | 0

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Question


If I try to use `sprintf` to format a string as numeric, why does a different number get passed?
When I try to format strings with numeric values using sprintf, I notice that if I forget to change the value that I'm trying to...

2 years ago | 2 answers | 0

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answers

Question


What is the architectural difference between using `feedforwardnet` and `fitcnet`?
I'm trying to train and evaluate a simple ANN for binary classification. It seems that I can use both fitcnet and feedforwardnet...

2 years ago | 1 answer | 0

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Question


predictorImportance changes between releases
I've been debugging an old bagged ensemble tree model and I noticed that when I run the model using MATLAB R2019a, R2017b, and R...

2 years ago | 1 answer | 0

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Question


writetable adds unnecessary columns to Excel file
I'm trying to save my table to an Excel spreadsheet. test_limits = {'1', '2', '3'}; test_sens = {'0.54(0.02)', '0.89(0.01)', ...

4 years ago | 1 answer | 0

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answer

Answered
How can I add the C parameter as a single value in fitcsvm?
The 'Cost' parameter in fitcsvm is usually used to add weights to imbalanced classes, not modifying the constraint on the hyperp...

5 years ago | 0

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Question


How can I add the C parameter as a single value in fitcsvm?
According to the documentation, fitcsvm require the Cost parameter to be a 2x2 matrix (or a structure), specifying the cost for ...

5 years ago | 1 answer | 0

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