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View cv_right.rmd
```{r first separate data into folds before choosing features}
# train the model on training set
# Leave out fold
accuracy.rates <- c()
for (itr in seq_len(folds)){
# Note: since input features are already random, no need to shuffle the data
# before creating folds. But ideally, examples need to be shuffled before
# creating folds to get rid of recording/data collecting bias
kkraoj / cv_wrong.rmd
Last active Jul 11, 2019
Wrong and right way to do CV
View cv_wrong.rmd
```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
# Cross validation Example: The wrong way and the right way
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