compare-geojson/scripts/primary-map-features-analysis.js

Compare a features new and old versions in GeoJSON

'use strict';

var fs = require('fs');
var csv = require('csv');
var argv = require('minimist')(process.argv.slice(2));

if (!argv.counts) {
  console.log('');
  console.log('USAGE: node primary-map-features-analysis.js OPTIONS');
  console.log('');
  console.log('  OPTIONS');
  console.log('    --counts counts.csv');
  console.log('');
  return;
}

// Statistics for number of counts that are zero, less than 1 and greater than 1.
var stats = [0, 0, 0];

csv.parse(fs.readFileSync(argv.counts), function (error, rows) {
  var header = [];
  for (var i = 0; i < rows.length; i++) {

    if (header.length === 0) {
      header = rows[i];
      continue;
    }

    for (var j = 0; j < rows[i].length; j++) {
      var count = parseFloat(rows[i][j]);
      if (count === 0) stats[0] += 1;
      else if (count < 1) stats[1] += 1;
      else stats[2] += 1;
    }
  }
  console.log(stats);
});