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The following syntax for options is accepted (both '-' and '--' are ok):
  --flag        (bool flags only)
  --no-flag     (bool flags only)
  --flag=value  (non-bool flags only, no spaces around '=')
  --flag value  (non-bool flags only)
  --            (captures all remaining args in JavaScript)

Options:
  --abort-on-contradictory-flags (Disallow flags or implications overriding each other.)
        type: bool  default: --no-abort-on-contradictory-flags

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Keybase proof

I hereby claim:

• I am cscheid on github.
• I am cscheid (https://keybase.io/cscheid) on keybase.
• I have a public key ASCbHGh8DWbPaMRsAqX3jKu2t6uySLoIHP3RpjNWw7XvNQo

To claim this, I am signing this object:

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license: gpl-3.0

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import math
from pylab import *

def fact(x):
    return math.gamma(x+1)

def choose(n,k):
    return fact(n) / (fact(k) * fact(n-k))

def hypergeom_mass_at_k(N, K, n, k):

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The scatterplot matrix visualizations pairwise correlations for multi-dimensional data; each cell in the matrix is a scatterplot. This example uses Anderson's data of iris flowers on the Gaspé Peninsula. Scatterplot matrix design invented by J. A. Hartigan; see also R and GGobi. Data on Iris flowers collected by Edgar Anderson and published by Ronald Fisher.

See also this version with brushing.

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A demo of TopoJSON on a U.S. counties shapefile from the census bureau using d3.geo.albersUsa. The same TopoJSON file can also be used to show counties.

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# You should totally ignore this because it's the first piece of Julia I've ever written.
# 2-clause BSD, blah.

function make_cycle(n)
    result = Dict{Int32, Array{Int32}}()
    for i = 1:n
        ii = i - 1
        push!(result, i, [1 + ((i+n-2) % n), 1 + i % n])
    end
    result

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You need to get to the bit representation of the float, and then:

inline unsigned int float2fint(unsigned int f) {
    return f ^ ((-(f >> 31)) | 0x80000000);
}

Callahan et al. used this trick in this paper.

Caveats:

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This choropleth encodes unemployment rates from 2008 with a quantize scale ranging from 0 to 15%. A threshold scale is a useful alternative for coloring arbitrary ranges.