Question

How to calculate diagonal difference of two row in dataframe scala spark?

Answer 1

Explanation:

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Answer 2

Answer:

Explanation:

Column1 |Date   |Amount

A   |1-jul  |1000

A   |1-june |2000

A   |1-May  |2000

A   |1-dec  |3000

A   |1-Nov  |2000

B   |1-jul  |100

B   |1-june |300    

B   |1-May  |400

B   |1-dec  |300

Now, I want to add new column, with difference between amount of any two dates from the table.