michael 📈 👨💻
@mikedecr.computer
Quant finance researcher/developer.
Former political scientist, sometimes bike rider.
Long form mikedecr.computer
Former political scientist, sometimes bike rider.
Long form mikedecr.computer
I suppose this is also less clunky then popping an element only to maybe re-append it
![def attach_interval(lst: list[Interval], new: Interval) -> list[Interval]:
"""Collapse interval `new` to the last element of `lst` if possible, otherwise append."""
if len(lst) == 0:
lst.append(new)
return lst
if (collapsed := maybe_collapse_intervals(lst[-1], new)):
lst[-1] = collapsed
else:
lst.append(new)
return lst](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:qjxju2w5sdit42sjb4qpnatk/bafkreiatzl2hhgrjj43r6athm237sw5ryivrcbkrhxt7qik4m3w5bnbvaa@jpeg)
January 10, 2026 at 3:24 AM
I suppose this is also less clunky then popping an element only to maybe re-append it
de-structuring the tuples here creates a more pleasant reading experience
![python code:
def maybe_collapse_intervals(left: Interval, right: Interval) -> tuple[Interval, ...] | None:
"""Return collapsed interval if possible, or None"""
a, b = left
x, y = right
if a <= x <= y <= b: # left contains right
return (a, b)
elif x <= a <= b <= y: # right contains left
return (x, y)
elif a <= x <= b <= y: # left straddles right lower bound
return (a, y)
elif x <= a <= y <= b: # left straddles right upper bound
return (x, b)
else:
return](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:qjxju2w5sdit42sjb4qpnatk/bafkreihew4kkdltzcixghpz32dkyxk2t4dc5xgmqes3ypbrnqifwoa243a@jpeg)
January 10, 2026 at 3:21 AM
de-structuring the tuples here creates a more pleasant reading experience
i shall spare you from my blegh
January 1, 2026 at 6:32 PM
i shall spare you from my blegh
join the vim gang and control everything
December 13, 2025 at 5:44 PM
join the vim gang and control everything
editing the clip: "hard rule: no statistics... it isn't worth it"
November 30, 2025 at 5:53 PM
editing the clip: "hard rule: no statistics... it isn't worth it"
my worry is that this is good armor against slop only to the extent that people have collective energy to join hands and hate it together, which is a shaky foundation
November 9, 2025 at 5:52 PM
my worry is that this is good armor against slop only to the extent that people have collective energy to join hands and hate it together, which is a shaky foundation
the work is never done, matt
November 9, 2025 at 4:58 PM
the work is never done, matt
this has been a very nice trick so far actually. it's way easier to set prior expectations when the scale is like, multiples of the mean vs. the number of nanoseconds between things
October 15, 2025 at 10:39 PM
this has been a very nice trick so far actually. it's way easier to set prior expectations when the scale is like, multiples of the mean vs. the number of nanoseconds between things
does it help in another way besides the prior for the mean e.g. better sampling or something? assuming you are doing a log link then it sounds like you can get the same algebra by centering the intercept on log of the mean right?
October 15, 2025 at 4:33 PM
does it help in another way besides the prior for the mean e.g. better sampling or something? assuming you are doing a log link then it sounds like you can get the same algebra by centering the intercept on log of the mean right?
anything helps me absorb little intuitions, thanks
October 15, 2025 at 1:41 PM
anything helps me absorb little intuitions, thanks
this is the kind of stimulating content you can expect by following me at mikedecr dot computer
September 27, 2025 at 7:03 PM
this is the kind of stimulating content you can expect by following me at mikedecr dot computer