total rows output around 99k ish i forgot how many i reduce the row but its kinda diff with group 3 dataset so many missing val, i handle it with mean, fix value (UNKNOWN i fogot) remove all ...
* Segmenting customers into 5 tiers for marketing optimization. NTILE(5) OVER (ORDER BY r_raw ASC) AS r, NTILE(5) OVER (ORDER BY f_raw DESC) AS f, NTILE(5) OVER (ORDER BY m_raw DESC) AS m WHEN r >= 4 ...
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