ecclesia/dist/actors/opinionsArray.js

Framework for political and electoral simulations

import {
  createRandomObj
} from "../chunk-7OCVVPU4.js";

// src/actors/opinionsArray.ts
import { range, sum } from "@gouvernathor/python";
import * as math from "@gouvernathor/python/math";
function normalToUniform(x, mu, sigma) {
  return 0.5 * (1 + math.erf((x - mu) / (sigma * Math.SQRT2)));
}
function getAligner(opinMax, factors) {
  const rang = range(-opinMax, opinMax + 1);
  const oneSigma = Math.sqrt(sum(rang.map((i) => i ** 2)) / rang.length);
  const sigma = math.hypot(...factors.map((f) => f * oneSigma));
  return (opinions) => {
    const scapro = sum(opinions.map((opinion, i) => opinion * factors[i]));
    return normalToUniform(scapro, 0, sigma);
  };
}
function getDefaultAlignmentFactors(nOpinions) {
  return Array.from({ length: nOpinions }, (_, i) => 1 - i / nOpinions);
}
var OpinionsArrayManager = class {
  constructor({
    nOpinions,
    opinMax,
    opinionAlignmentFactors = getDefaultAlignmentFactors(nOpinions)
  }) {
    this.nOpinions = nOpinions;
    this.opinMax = opinMax;
    this.opinionAlignmentFactors = opinionAlignmentFactors;
    this.aligner = getAligner(opinMax, opinionAlignmentFactors);
    this.generator = (randomParam) => createRandomObj(randomParam).choices(range(-opinMax, opinMax + 1), { k: nOpinions });
  }
};
export {
  OpinionsArrayManager
};
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