Challenge No. 650: List the bottom 3 unique values across the columns.
Solved using: Python.
SMALL
Returns the k-th smallest value in a range in Excel.
Minimum Sum Unique Pairs
Challenge No. 588: Find the unique pairs for which sum in minimum across the columns.
Solved using: R.
Knn Missing Value!
Challenge No. 86: K-nearest neighbors (KNN) is a simple technique for replacing missing values with the average of the nearest values.
Solved using:Excel, Power Query, and VBA.