David

David has asked 5 questions and find answers to 31 problems.

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David questions

How to specify a validation holdout set to caret
Downloading Reactive Objects in Shiny
pyspark using one task for mapPartitions when converting rdd to dataframe
Predicting LDA topics for new data

David answers

Passing variable names to model in shiny app
How to specify a validation holdout set to caret
Table of vector's means by two factors
GBM multinomial distribution, how to use predict() to get predicted class?
feature Union of hetereogenous features
scikit-learn custom transformer / pipeline that changes X and Y
R package, Caret RFE function, how to customize metric to use AUC?
scikit-learn: don't separate hyphenated words while tokenization
GridSearchCV: performance metrics on a selected class [unbalanced data-set]
Interactive / Reactive change of min / max values of sliderInput