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Step 3 - Create Round arrays for each player

Step 3.0: Extract 'numRounds' from the 'treatment' column​

Treatments is a column in the DataFrame that contains JSON-like strings which is converted into a dictionary which includes a key called numRounds. We extract the value of the key numRounds and store it in the Rounds array.

Rounds
0       5
1       5
2       5
3       5
4       5

Step 3.1: Create the 'Round' column with a list from 1 to the value in 'Rounds'​

The variable X (value = 5) here is the value from numRounds key and we create an array called Round which spans from 1 to 5.

Round
0  [1, 2, 3, 4, 5]
1  [1, 2, 3, 4, 5]
2  [1, 2, 3, 4, 5]
3  [1, 2, 3, 4, 5]
4  [1, 2, 3, 4, 5]