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Aug
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awarded  Revival
Aug
14
awarded  Good Answer
Aug
4
accepted Confidence intervals of fitted Weibull survival function?
Aug
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awarded  Popular Question
Jul
1
revised Survival Analysis tools in Python
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Jun
24
reviewed Approve Feature selection: permutation test Vs deleting a variable
Jun
23
comment Percentile vs quantile vs quartile
Can percentiles also be scaled to be between 0 and 1? Ex: does it make sense to say percentile(array, 0.5) (the median)?
Jun
8
awarded  Yearling
Jun
7
awarded  Necromancer
May
22
revised Help setting up pymc to solve this problem relating to distribution of colors in M&M's
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May
5
comment Bayesian AB testing with time lag
What do you mean when you say cohort? Just to be clear.
May
3
answered Bayesian AB testing with time lag
Apr
23
comment Python Astronomy Censored Data in Lifelines
gist.github.com/CamDavidsonPilon/73578eabd5b34b3f086d
Apr
23
comment Python Astronomy Censored Data in Lifelines
Well ok actually you can use lifelines, but it's a hack on the definition of correlation. There is a measure called the concordance index which is used to measure survival prediction. Instead of comparing values, it compares ranks: if x_i < x_j in one dataset, is y_i < y_j in the other dataset? It deals gracefully with right-censored data as well. It's a value between 0 and 1 (1 being perfect, 0.5 is random, 0 is opposite); if you normalize the concordance index to be between -1 and 1, you get a sorta correlation (but please don't call it that). Here's a script to do it in lifelines:
Apr
22
answered Python Astronomy Censored Data in Lifelines
Apr
21
comment Python Astronomy Censored Data in Lifelines
Hey Matt, can you describe your dataset better and what terms like "turnover frequency" are?
Apr
19
comment Example Bayesian resolution of the Two Envelopes Problem
@Xi'an, maybe nothing, but why does an answer need to have something new?
Apr
17
comment Survival estimation when death/censoring is probabilistic
@PiotrMigdal have you looked at using customer CLV to measure this? See a good intro in "“Counting Your Customers” the Easy Way: An Alternative to the Pareto/NBD Model" by Fader et al. An implementation is available at github.com/CamDavidsonPilon/lifetimes
Apr
17
comment Help setting up pymc to solve this problem relating to distribution of colors in M&M's
corrected! Thanks for spotting that.
Apr
16
revised Help setting up pymc to solve this problem relating to distribution of colors in M&M's
added 10 characters in body