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View test-experiment.json
"id": "testexperiment",
"evalUri": "/tmp/eval/testexperiment",
"trainUri": "/tmp/train/testexperiment",
"predictUri": "/tmp/predict/testexperiment",
"chipUri": "/tmp/chip/testexperiment",
"task": {
"predictBatchSize": 10,
"objectDetectionConfig": {
nix-env -i hello
nix-env --uninstall hello
# sandboxing
nix-shell -p hello
# time traveling
nix-env --list-generations
nix-env --switch-generation 1
View package.el
;;; packages.el --- scala-metals layer packages file for Spacemacs.
;; Copyright (c) 2012-2017 Sylvain Benner & Contributors
;; Author: James <>
;; URL:
;; This file is not part of GNU Emacs.
;;; License: GPLv3
  • goal: pluggability, so that if someone wants to write the akka-http routes, it's easy for them

  • other question: what's the abstraction? Like -- Meta, or En/Decoder, or...

  • Define Tile Fetching Interface

    • based on layer id
    • something that produces a (Int, Int, Int) => Tile
    • also like Extent => Tile, Extent => Geotiff
    • like TileResolver in existing tile server
  • Cacheing interface -- mostly done, failing tests

View nix
;; -*- mode: emacs-lisp -*-
;; This file is loaded by Spacemacs at startup.
;; It must be stored in your home directory.
(defun dotspacemacs/layers ()
"Configuration Layers declaration.
You should not put any user code in this function besides modifying the variable
;; Base distribution to use. This is a layer contained in the directory
View FiveMinuteFP.hs
module FiveMinuteFP where
data Option a = Nope | Yup a deriving (Eq, Show)
-- try to make a number odd by adding 1 to it
oddify1 :: Int -> Option Int
oddify1 x =
case (x `mod` 2) of
0 -> Yup (x + 1)
_ -> Nope

Chapter 29 - IO

tl;dr: IO doesn't do anything, it's just a way of describing getting a value from somewhere

  • we should be proud
  • some examples of effects:
    • printing st stdout (putStrLn)
    • reading from stdin (getChar)
The goal of this software is to run a simulation of a model presented by
Moon Duchin in the math session at the Austin regional site for the Metric
Geometry and Gerrymandering Group
In broad strokes, it takes an input shape of some sort and splits it
in four at some point in the polygon (don't talk to me about points out
of the polygon, you degenerate). It assumes that the polygon has some proportion
of one delegate's worth of population, and that the shapes resulting from the split
View InChapter.hs
module InChapter where
{-# LANGUAGE OverloadedStrings #-}
import Control.Monad.IO.Class
import Control.Monad.Trans.Except
import Control.Monad.Trans.Maybe
import Control.Monad.Trans.Reader
-- EitherT
View GraphDot.hs
module GraphDot where
{-# LANGUAGE OverloadedStrings #-}
import qualified Data.Map.Strict as M
import qualified Data.ByteString as BS
import Data.Attoparsec.ByteString.Char8
import qualified Data.Attoparsec.Combinator as Comb
import Control.Applicative
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