Mercurial > hg > GlobalNeighbors

annotate globalneighbors/neighbors.py @ 25:991bce6b6881 default tip

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[knn] placeholder for planning session
author Jeff Hammel <k0scist@gmail.com>
date Sun, 17 Sep 2017 14:35:50 -0700
parents 6891c5523b69
children
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2fef925fbf37 display country + population in autocomplete drop down
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1 """
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2 read neighbors file;
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3 this should be in the form of:
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4
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5 `geoid [(geoid_closest_neighbor, distance), (geoid_2nd_closest_neighbor, distance), ...]`
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7 *PER LINE* this format was chosen because it is easier to
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8 iteratively read and write vs JSON.
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9
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10 While CSV could be made to fit this model, because
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11 there are both distances and geo IDs as pairs, it is not
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12 the most natural fit. So we'll settle for our own data model.
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13 No, it's not the best, but so be it (for now).
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14 """
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16 import json
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17 import os
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19 string = (str, basestring) # python2
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21 def read_neighbors_file(f):
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23 if isinstance(f, string):
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24 with open(f) as _f:
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6891c5523b69 load with neighbors :)
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25 return read_neighbors_file(_f)
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27 retval = {}
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28 for line in f:
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29 key, value = line.split(None, 1)
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30 key = int(key)
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31 data = json.loads(value)
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32 data = [tuple(item) for item in data]
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33 retval[key] = data
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34 return retval