Imagine you're working with a dataset in R and need to standardize a numeric column. How would you approach this?
- Add the mean and multiply by the standard deviation
- Multiply by the standard deviation and add the mean
- Subtract the mean and divide by the standard deviation
- Subtract the median and divide by the interquartile range
To standardize a numeric column in R, we typically subtract the mean of the column and then divide by the standard deviation. This results in a column with a mean of 0 and standard deviation of 1. This can be done using the scale() function in R.
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