Cohort Retention in pandas: Three Mistakes That Make Your Curve Lie

Byali

Oct 8, 2026 #python

Cohort retention tables look simple: group customers by the month they started, count how many are still around each month after, divide…

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Cohort retention tables look simple: group customers by the month they started, count how many are still around each month after, divide…Continue reading on Medium » Read More Python on Medium

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By ali

Python

RAG Isn’t Magic. Here’s the Journey From a Question to an Answer

Oct 8, 2026 ali

Python

list(set(x)) came out in a different order on all 20 runs.

Oct 8, 2026 ali

Python

Your Proxy Pool Size Is the Wrong Number. Count Live IPs Instead.

Oct 8, 2026 ali

M	T	W	T	F	S	S
			1	2	3	4
5	6	7	8	9	10	11
12	13	14	15	16	17	18
19	20	21	22	23	24	25
26	27	28	29	30	31

Cohort Retention in pandas: Three Mistakes That Make Your Curve Lie

Byali

By ali

Related Post

RAG Isn’t Magic. Here’s the Journey From a Question to an Answer

list(set(x)) came out in a different order on all 20 runs.

Your Proxy Pool Size Is the Wrong Number. Count Live IPs Instead.

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