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Simulation.js
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Simulation.js
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"use strict";
/*global console setCountry */
$(document).ready(function() {
var BASEMortality = 0.995; // Minimum mortality rate
var EPSILON = 0.04; // For comparing floating point numbers
/* -------------------- UTILITY FUNCTIONS ----------------------- */
var tell = function(msg, color) {
$('p.output').text(msg).css("color", color);
}
// From JSAV utils: Get parameters from the URL
function getQueryParameter(name) {
var params = window.location.search,
vars = {}, i, pair;
if (params) {
params = params.slice(1).split('&'); // get rid of ?
for (i = params.length; i--;) {
pair = params[i].split('='); // split to name and value
vars[pair[0]] = decodeURIComponent(pair[1]); // decode URI
if (name && pair[0] === name) {
return pair[1]; // if name requested, return the matching value
}
}
}
if (name) { // name was passed but param was not found, return undefined
return;
}
return vars;
}
// Based on the URL of the current page, build the URL for a data file
function urlForDataFile(filename) {
var pathArray = window.location.pathname.split('/');
var theURL = window.location.protocol + "//" + window.location.host;
for (var i = 0; i < pathArray.length - 1; i++) {
theURL += pathArray[i];
theURL += "/";
}
theURL += "CountryData/" + filename;
console.log("Data URL is: " + theURL);
return theURL;
}
// Format a string that represents a large number by
// adding commas in the appropriate places
// Returns a string
$.fn.formatNumberCommas = function() {
return this.each(function() {
$(this).text($(this).text().replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "$1,"));
});
};
/* --------------- BUTTON AND FIELD HANDLERS --------------------- */
function fertilityButtonClick() {
var curr = simState.sim[simState.currSim];
tell("Opened the fertility rate popup");
$('#fertilityTargetValue').val(curr.cstep[curr.currstep].targetFertilityValue);
$('#fertilityTargetYear').val(curr.cstep[curr.currstep].targetFertilityYear);
$('#fertilityPopup').show();
}
function fertilityCloseButtonClick() {
var curr = simState.sim[simState.currSim];
var currstep = curr.cstep[curr.currstep];
tell("Closed the fertility rate popup");
currstep.targetFertilityValue = $('#fertilityTargetValue').val() * 1.0;
currstep.targetFertilityYear = $('#fertilityTargetYear').val();
console.log("Target TFR value: " + $('#fertilityTargetValue').val() * 1.0);
console.log("Target TFR year: " + $('#fertilityTargetYear').val());
if (currstep.targetFertilityYear == currstep.year) {
console.log("Set the display field for fertility");
$('p#fertilityField').text(currstep.targetFertilityValue.toFixed(1) + ' Children');
}
// TODO: Validate the values set in the fields here
// TODO: If they are bad, then reset them to current values (?)
$('#fertilityPopup').hide();
}
function fertilityRatesOpenButtonClick() {
tell("Switch to the individual fertility rate popup");
var curr = simState.sim[simState.currSim];
var cstep = curr.cstep[curr.currstep];
$('#fertilityPopup').hide();
for(var i=1; i<=7; i++) {
$('#birth'+i).val(Math.round(cstep.birthrate[10+5*i] * 1000.0));
}
$('#fertilityRatesPopup').show();
}
function fertilityRatesCloseButtonClick() {
tell("Closed the individual fertility rate popup");
var curr = simState.sim[simState.currSim];
var cstep = curr.cstep[curr.currstep];
var temp, i, j, newbirth;
for(j=1; j<=7; j++) {
temp = $('#birth'+j).val();
if (temp != Math.round(cstep.birthrate[10+5*j] * 1000.0)) {
newbirth = temp/1000.0;
for (i=0; i<5; i++) {
cstep.birthrate[10+5*j+i] = newbirth;
}
}
}
console.log("New birth rates: " + cstep.birthrate);
var newTFR = 0.0;
for(i=15; i<50; i++) {
newTFR += cstep.birthrate[i];
}
cstep.targetFertilityValue = cstep.fertility = newTFR;
console.log("New fertility: " + cstep.fertility);
$('p#fertilityField').text(cstep.targetFertilityValue.toFixed(1) + ' Children');
$('#fertilityRatesPopup').hide();
}
function lifeExpButtonClick() {
var curr = simState.sim[simState.currSim];
var cstep = curr.cstep[curr.currstep];
tell("Opened the life expectancy popup");
$('#lifeExpTargetValue').val(cstep.targetLifeExpValue);
$('#lifeExpTargetYear').val(cstep.targetLifeExpYear);
var imr = Math.round((1.0 - cstep.maleMortality[0]) * 1000.0);
$('#IMR').val(imr);
console.log("IMR: " + cstep.maleMortality[0]);
$('#lifeExpPopup').show();
}
function lifeExpCloseButtonClick() {
var curr = simState.sim[simState.currSim];
var currstep = curr.cstep[curr.currstep];
tell("Closed the life expectancy popup");
var imr = 1.0 - $('#IMR').val() / 1000.0;
currstep.maleMortality[0] = currstep.femaleMortality[0] = imr;
console.log("New IMR: " + imr);
currstep.targetLifeExpValue = $('#lifeExpTargetValue').val() * 1.0;
currstep.targetLifeExpYear = $('#lifeExpTargetYear').val();
console.log("Target LifeEx value: " + $('#lifeExpTargetValue').val() * 1.0);
console.log("Target LifeEx year: " + $('#lifeExpTargetYear').val());
if (currstep.targetLifeExpYear == currstep.year) {
console.log("Old LifeExp: " + currstep.targetLifeExpValue);
scaleLifeExp(currstep, currstep.targetLifeExpValue);
currstep.targetLifeExpValue = calcLifeExp(currstep);
console.log("New LifeExp: " + currstep.targetLifeExpValue);
console.log("Set the display field for Life Ex");
$('p#lifeExpField').text(currstep.targetLifeExpValue.toFixed(1) + ' Years');
}
// TODO: Validate the values set in the fields here
// TODO: If they are bad, then reset them to current values (?)
$('#lifeExpPopup').hide();
}
function netMigButtonClick() {
var curr = simState.sim[simState.currSim];
tell("Opened the net migration popup");
$('#netMigTargetValue').val(curr.cstep[curr.currstep].targetMigValue);
$('#netMigTargetYear').val(curr.cstep[curr.currstep].targetMigYear);
$('#netMigPopup').show();
}
function netMigCloseButtonClick() {
var curr = simState.sim[simState.currSim];
var currstep = curr.cstep[curr.currstep];
tell("Closed the migration popup");
currstep.targetMigValue = $('#netMigTargetValue').val();
currstep.targetMigYear = $('#netMigTargetYear').val();
console.log("Closed the migration popup. Target year: " +
currstep.targetMigYear + ", target value: " + currstep.targetMigValue);
if (currstep.targetMigYear == currstep.year) {
console.log("Set the display field for migration");
$('p#netMigField').text(currstep.targetMigValue).formatNumberCommas();
}
// TODO: Validate the values set in the fields here
// TODO: If they are bad, then reset them to current values (?)
$('#netMigPopup').hide();
}
function simForwardButtonClick() {
tell("Clicked on simForward button.");
// Copy record for next sim step
var curr = simState.sim[simState.currSim];
curr.currstep += 1;
var posit = curr.currstep;
console.log("Posit: " + posit);
curr.cstep[posit] = jQuery.extend(true, {}, curr.cstep[posit - 1]);
console.log("simForward: " + curr.cstep[posit].year);
console.log("simForward: " + curr.cstep[posit].pop);
for (var i = 0; i < stepSize; i++) { // How many years to advance
advanceSimState(curr.cstep[posit]);
}
console.log("advanced: " + curr.cstep[posit].year);
console.log("advanced: " + curr.cstep[posit].pop);
$('#simBackButton').removeAttr('disabled');
displayState();
if (posit === maxSteps) {
$('#simForwardButton').attr('disabled', 'disabled');
}
}
function simBackButtonClick() {
tell("Clicked on simBack button.");
// Remove the current simulation state record
simState.sim[simState.currSim].currstep -= 1;
$('#simForwardButton').removeAttr('disabled');
displayState();
if (simState.sim[simState.currSim].currstep === 0) {
console.log("Disable Back button");
$('#simBackButton').attr('disabled', 'disabled');
}
}
function newSimButtonClick() {
console.log("Clicked anotherSim");
if (simState.currSim === 2) {
tell("Can only have three simulations at once. Reset if you want a new simulation.");
return;
}
simState.currSim += 1;
initSim(simState.sim[simState.currSim].cstep[0]);
displayState();
}
function resetButtonClick() {
console.log("Clicked reset");
$('p.currYearField.field1').text('');
$('p.currPopField.field1').text('');
$('p.currYearField.field2').text('');
$('p.currPopField.field2').text('');
initSimState();
for (var i = 1; i <= 4; i++) {
xArray[i] = [];
yArray[i] = [];
}
displayState();
}
/* ------------------ Button Callbacks ------------------------- */
$('#fertilityButton').click(fertilityButtonClick);
$('#fertilityRatesOpenButton').click(fertilityRatesOpenButtonClick);
$('#fertilityCloseButton').click(fertilityCloseButtonClick);
$('#fertilityRatesCloseButton').click(fertilityRatesCloseButtonClick);
$('#lifeExpButton').click(lifeExpButtonClick);
$('#lifeExpCloseButton').click(lifeExpCloseButtonClick);
$('#netMigButton').click(netMigButtonClick);
$('#netMigCloseButton').click(netMigCloseButtonClick);
$('#simForwardButton').click(simForwardButtonClick);
$('#simBackButton').click(simBackButtonClick);
$('#newSimButton').click(newSimButtonClick);
$('#resetButton').click(resetButtonClick);
/* ------------------ SIMULATION SUPPORT ------------------------ */
// Initialize the simulation state variable, and initialize the display
function initSimState() {
simState.currSim = 0;
simState.sim = [{ cstep: [], currstep: 0 },
{ cstep: [], currstep: 0 },
{ cstep: [], currstep: 0 } ];
for (var i = 0; i < maxSteps; i++) {
simState.sim[0].cstep[i] = {};
simState.sim[1].cstep[i] = {};
simState.sim[2].cstep[i] = {};
}
initSim(simState.sim[simState.currSim].cstep[0]); // Initialize the first simulation
$('p#initialPopField').text('Initial Population: ' + initialPop()).formatNumberCommas();
$('.anotherSim').removeAttr('disabled');
displayState();
}
// Generate the initial population value by summing
// the input values of each age bucket
function initialPop() {
var pop = 0;
for (var i = 0; i < initCountry.malePop.length; i++) {
if (i != 16) {
pop = pop + initCountry.malePop[i] + initCountry.femalePop[i];
}
}
return pop * 1000;
}
// Calculate the life expectancy from the current rates
function calcLifeExp(cStep) {
var i;
var leTemp, leDeaths;
var lifeExp = 0.0;
var alive = 1000000.0; // A population to age to calculate life expectancy
// Adjust for infant mortality
alive = alive * ((cStep.maleMortality[0] + cStep.femaleMortality[0]) / 2.0);
console.log("Alive after IMR: " + alive);
for (i = 1; i <= 100; i++) {
leTemp = alive * ((cStep.maleMortality[i] + cStep.femaleMortality[i]) / 2.0);
leDeaths = alive - leTemp;
alive = leTemp;
lifeExp += (leDeaths / 1000000.0) * (i - 0.5);
}
for (i = 0; i < 100; i++) { // Calculate a few more years for people over 100
leTemp = alive * ((cStep.maleMortality[100] + cStep.femaleMortality[100]) / 2.0);
leDeaths = alive - leTemp;
alive = leTemp;
lifeExp += (leDeaths / 1000000.0) * (100.5 + i);
}
console.log("At this point in calculating life expectancy, we still have " + alive + " people alive");
return lifeExp;
}
// Calculate the yearly birth rates, and the TFR
function setBirthRates(sim, cohortRates) {
var currBRate, i, j;
sim.fertility = 0.0;
sim.birthrate = [];
for (i = 0; i < 15; i++) { // The UN data show no births for ages 0-14
sim.birthrate[i] = 0;
}
for (i = 0; i < cohortRates.length; i++) {
sim.fertility += (cohortRates[i] / initCountry.femalePop[i + 3]);
currBRate = (cohortRates[i] / initCountry.femalePop[i + 3] * 0.2);
for (j = 0; j < 5; j++) {
sim.birthrate[15 + i * 5 + j] = currBRate;
}
}
}
// Initialize the state for one of the three simulations
// cStep is the object for the current step in the simulation state.
function initSim(cStep) {
var i, j, ipos;
var currMMRate = BASEMortality;
var currFMRate = BASEMortality;
console.log("In initSim: " + simState.currSim);
cStep.netMigration = initCountry.netMigration * 1000;
cStep.pop = initialPop();
cStep.year = initCountry.startYear;
setBirthRates(cStep, initCountry.births);
console.log("Birthrates: " + cStep.birthrate);
// Calculate the yearly death rates (male and female)
cStep.maleMortality = [];
cStep.femaleMortality = [];
for (i = 1; i < initCountry.maleMortality.length; i++) {
if ((initCountry.malePop[i] !== 0) && (initCountry.maleMortality[i] !== 0)) {
currMMRate = 1.0 - (initCountry.maleMortality[i] / initCountry.malePop[i] * 0.2);
} // Otherwise, leave it at the last calcuated value (default 1.0)
if ((initCountry.femalePop[i] !== 0) && (initCountry.femaleMortality[i] !== 0)) {
currFMRate = 1.0 - (initCountry.femaleMortality[i] / initCountry.femalePop[i] * 0.2);
} // Otherwise, leave it at the last calcuated value (default 1.0)
for (j = 0; j < 5; j++) {
cStep.maleMortality[i * 5 + j] = currMMRate;
cStep.femaleMortality[i * 5 + j] = currFMRate;
}
}
// UN data only goes up to 95+, so the 100+ bin needs special handling
cStep.maleMortality[100] = currMMRate;
cStep.femaleMortality[100] = currFMRate;
// We have the IMR, so set it explicitly
cStep.maleMortality[0] = 1.0 - (initCountry.infantMortality / 1000.0);
cStep.femaleMortality[0] = 1.0 - (initCountry.infantMortality / 1000.0);
// We need to treat years 1-4 specially, since most of those die in year 0.
var births = 0;
for (i = 0; i < initCountry.births.length; i++) {
births += initCountry.births[i];
}
var infantDeaths = births * initCountry.infantMortality;
var deaths = (initCountry.maleMortality[0] * 1000.0) - infantDeaths/2.0;
currMMRate = 1.0 - (deaths / 4.0) / (initCountry.malePop[0] * 200.0);
if (currMMRate > 1.0) { currMMRate = 1.0; }
deaths = (initCountry.femaleMortality[0] * 1000.0) - infantDeaths/2.0;
currFMRate = 1.0 - (deaths / 4.0) / (initCountry.femalePop[0] * 200.0);
if (currFMRate > 1.0) { currFMRate = 1.0; }
for (i = 1; i <= 4; i++) {
cStep.maleMortality[i] = currMMRate;
cStep.femaleMortality[i] = currFMRate;
}
console.log("Child mortality rate calc: births: " + births + ", infantDeaths: " + infantDeaths +
", net female deaths: " + deaths);
console.log("Mortality rates:");
console.log(cStep.maleMortality);
console.log(cStep.femaleMortality);
// Calculate the life expectancy
cStep.lifeExp = calcLifeExp(cStep);
// Calculate the yearly populations (male and female)
cStep.malePop = [];
cStep.femalePop = [];
for (i = 0; i < (initCountry.malePop.length - 1); i++) {
ipos = i;
if (i !== 16) { // Position 16 is a special "80+" value, skip it
if (ipos > 16) {
// Again, this is to handle the "80+" column
ipos = ipos - 1;
}
for (j = 0; j < 5; j++) {
cStep.malePop[ipos * 5 + j] = initCountry.malePop[i] * 200;
cStep.femalePop[ipos * 5 + j] = initCountry.femalePop[i] * 200;
}
}
}
cStep.malePop[100] = initCountry.malePop[21] * 1000;
cStep.femalePop[100] = initCountry.femalePop[21] * 1000;
console.log("Initial Male population:");
console.log(cStep.malePop);
console.log("Initial Female population:");
console.log(cStep.femalePop);
// Initialize target values for scenarios
cStep.targetMigValue = cStep.netMigration;
cStep.targetMigYear = cStep.year;
cStep.targetFertilityValue = cStep.fertility;
cStep.targetFertilityYear = cStep.year;
cStep.targetLifeExpValue = cStep.lifeExp;
cStep.targetLifeExpYear = cStep.year;
$('p#fertilityField').text(cStep.fertility.toFixed(1) + ' Children');
$('p#lifeExpField').text(cStep.lifeExp.toFixed(1) + ' Years');
$('p#netMigField').text(cStep.netMigration).formatNumberCommas();
$('#simForwardButton').removeAttr('disabled');
$('#simBackButton').attr('disabled', 'disabled');
}
// Load the country file object
function initCountryObject(filename) {
var dataURL = urlForDataFile(filename);
console.log("dataURL: " + dataURL);
$.ajax({
url: dataURL,
async: false,
dataType: 'json'
}).done(function(response) {
initCountry = response;
$('#countryField').text(initCountry.name);
// The value read from the UN data files is for a 5 year period, so rescale
initCountry.netMigration = initCountry.netMigration/5;
initSimState();
}).fail(function() {
tell("Oops! This page was called with a bad country file name: " + filename, "red");
});
}
// Display the current simulation state
function displayState() {
var i;
var curr = simState.sim[0].currstep;
console.log("curr: " + curr);
console.log("cstep: " + simState.sim[0].cstep[curr].year);
$('p.currYearField.field0').text('Year: ' + simState.sim[0].cstep[curr].year);
$('p.currPopField.field0').text('Population: ' +
simState.sim[0].cstep[curr].pop).formatNumberCommas();
if (simState.currSim !== 0) {
curr = simState.sim[1].currstep;
console.log("curr 1: " + curr);
console.log("cstep: " + simState.sim[1].cstep[curr].year);
$('p.currYearField.field1').text('Year: ' + simState.sim[1].cstep[curr].year);
$('p.currPopField.field1').text('Population: ' +
simState.sim[1].cstep[curr].pop).formatNumberCommas();
}
if (simState.currSim === 2) {
curr = simState.sim[2].currstep;
console.log("curr 2: " + curr);
console.log("cstep: " + simState.sim[1].cstep[curr].year);
$('p.currYearField.field2').text('Year: ' + simState.sim[2].cstep[curr].year);
$('p.currPopField.field2').text('Population: ' +
simState.sim[2].cstep[curr].pop).formatNumberCommas();
}
console.log("Display: " + simState.currSim);
// These next values are used to set the bounds of the chart
xArray[0] = [initCountry.startYear + stepSize * maxSteps];
yArray[0] = [0];
var xdum = [];
var ydum = [];
for (i = 0; i <= simState.currSim; i++) {
xdum[i] = [];
ydum[i] = [];
for (var j = 0; j <= simState.sim[i].currstep; j++) {
xdum[i][j] = simState.sim[i].cstep[j].year;
ydum[i][j] = simState.sim[i].cstep[j].pop;
}
xArray[i + 1] = xdum[i];
yArray[i + 1] = ydum[i];
}
console.log("Chart values: |" + xArray + "|, |" + yArray + "|");
if (rChart !== undefined) {
rChart.remove();
}
rChart = rChartPanel.linechart(70, 10, 370, 170, xArray, yArray, {
axis: '0 0 1 1',
axisxstep: maxSteps,
symbol: ['', 'circle', 'circle', 'circle'],
colors: ['transparent', '#995555', '#559955', '#555599']
});
var mtemp;
var ftemp;
curr = simState.sim[simState.currSim].currstep;
var cSim = simState.sim[simState.currSim].cstep[curr];
var mvals = [];
mvals.length = initCountry.malePop.length - 1;
var fvals = [];
for (i = 0; i < mvals.length - 1; i++) {
mtemp = 0;
ftemp = 0;
for (j = 0; j < 5; j++) {
mtemp += cSim.malePop[i * 5 + j];
ftemp += cSim.femalePop[i * 5 + j];
}
mvals[mvals.length - (i + 1)] = mtemp;
fvals[mvals.length - (i + 1)] = ftemp;
}
mvals[0] = cSim.malePop[100];
fvals[0] = cSim.femalePop[100];
PyrValues[0] = fvals;
PyrValues[1] = mvals;
var maxCohort = Math.max.apply(null, PyrValues[0].concat(PyrValues[1]));
console.log('Max: ' + maxCohort);
console.log("Pyramid: " + PyrValues[0] + ", " + PyrValues[1] + ", " + PyrValues);
// P.initPyramid(maxCohort * 1.25);
P.drawPyramid(PyrValues[0], PyrValues[1], maxCohort * 1.25);
$('p#fertilityField').text(cSim.fertility.toFixed(1) + ' Children');
$('p#lifeExpField').text(cSim.lifeExp.toFixed(1) + ' Years');
console.log("Now net migration is: " + cSim.netMigration);
$('p#netMigField').text(cSim.netMigration).formatNumberCommas();
}
function sumPop(currSim) {
// Sum and return the simulation population
var temp = 0;
for (var i = 0; i <= 100; i++) {
temp += currSim.malePop[i];
temp += currSim.femalePop[i];
}
return temp;
}
// Scale the birth rates by the scale factor
// Used for setting rates in scenarios
function scaleFertility(currSim, scaleFactor) {
console.log("Old birth Rates: " + currSim.birthrate);
for (var i = 15; i <= 49; i++) {
currSim.birthrate[i] *= scaleFactor;
}
console.log("New birth Rates: " + currSim.birthrate);
}
// Scale the mortality rates by the scale factor
// Used for setting rates in scenarios
// Uses iterative convergence to get the results
function scaleLifeExp(currSim, targetLE) {
console.log("IN SCALEDLIFEEXP:" + currSim.lifeExp + ", " + targetLE);
var scaleFactor;
while (Math.abs(currSim.lifeExp - targetLE) > EPSILON) {
scaleFactor = (1.0 * currSim.lifeExp) / (1.0 * targetLE);
for (var i = 0; i <= 100; i++) {
currSim.maleMortality[i] = 1.0 - ((1.0 - currSim.maleMortality[i]) * scaleFactor);
currSim.femaleMortality[i] = 1.0 - ((1.0 - currSim.femaleMortality[i]) * scaleFactor);
}
currSim.lifeExp = calcLifeExp(currSim);
console.log("SCALED: New life expectancy: " + currSim.lifeExp);
}
}
// Advance the current simulation state by one year
function advanceSimState(currSim) {
var i;
currSim.year += 1;
var temp = 0;
for (i = 0; i <= 100; i++) {
temp += currSim.malePop[i] + currSim.femalePop[i];
}
console.log("Year start pop: " + temp);
console.log("Target Migration Value: " + currSim.targetMigValue);
console.log("Target Migration Year: " + currSim.targetMigYear);
// Make any changes required by "scenarios"
// Update migration for scenarios (if appropriate)
if (currSim.targetMigValue !== currSim.netMigration) {
console.log("Updating Migration Scenario");
if (currSim.targetMigYear < currSim.year) {
console.log("Immediate migration change");
currSim.netMigration = currSim.targetMigValue;
} else {
var migDiff = currSim.targetMigValue - currSim.netMigration;
migDiff = Math.round(migDiff/(currSim.targetMigYear - currSim.year + 1));
console.log("Gradual migration change based on scenario: " + migDiff);
currSim.netMigration += migDiff;
}
}
if (currSim.targetMigYear < currSim.year) {
currSim.targetMigYear = currSim.year;
}
var scaleFactor; // Used by both TFR and life expectancy scenario updates
// Update fertility rates for scenarios (if appropriate)
if (currSim.targetFertilityValue !== currSim.fertility) {
console.log("Updating Fertility Scenario");
if (currSim.targetFertilityYear < currSim.year) {
console.log("Immediate fertility change");
scaleFactor = (1.0 * currSim.targetFertilityValue) /
(1.0 * currSim.fertility);
scaleFertility(currSim, scaleFactor);
console.log("Change Fertility from " + currSim.fertility + " to " + currSim.targetFertilityValue);
currSim.fertility = currSim.targetFertilityValue;
} else {
var fertilityDiff = (currSim.targetFertilityValue - currSim.fertility) /
(currSim.targetFertilityYear - currSim.year + 1);
console.log("Gradual fertility change based on scenario: " + fertilityDiff);
scaleFactor = (1.0 * currSim.fertility + fertilityDiff) /
(1.0 * currSim.fertility);
currSim.fertility += fertilityDiff;
scaleFertility(currSim, scaleFactor);
}
}
if (currSim.targetFertilityYear < currSim.year) {
currSim.targetFertilityYear = currSim.year;
}
// Update mortality rates for scenarios (if appropriate)
if (Math.abs(currSim.lifeExp - currSim.targetLifeExpValue) > EPSILON) {
console.log("Updating mortality Scenario");
if (currSim.targetLifeExpYear < currSim.year) {
console.log("Immediate mortality change. Change Life Expectancy from " +
currSim.lifeExp + " to " + currSim.targetLifeExpValue);
scaleLifeExp(currSim, currSim.targetLifeExpValue);
} else {
var lifeExpDiff = (currSim.targetLifeExpValue - currSim.lifeExp) /
(currSim.targetLifeExpYear - currSim.year + 1);
console.log("Gradual mortality change based on scenario: " + lifeExpDiff);
scaleLifeExp(currSim, currSim.lifeExp + lifeExpDiff);
console.log("The real life expectancy is now: " + calcLifeExp(currSim));
}
}
if (currSim.targetLifeExpYear < currSim.year) {
currSim.targetLifeExpYear = currSim.year;
}
// Now, step the simulation by a year
var deaths = 0;
for (i = 0; i <= 99; i++) {
deaths += currSim.malePop[i] * currSim.maleMortality[i + 1];
deaths += currSim.femalePop[i] * currSim.femaleMortality[i + 1];
}
deaths += currSim.malePop[100] * currSim.maleMortality[100];
deaths += currSim.femalePop[100] * currSim.femaleMortality[100];
console.log("Deaths should be: " + (temp - Math.round(deaths)));
currSim.malePop[100] = Math.round(currSim.malePop[100] * currSim.maleMortality[100] + currSim.malePop[99] * currSim.maleMortality[99]);
currSim.femalePop[100] = Math.round(currSim.femalePop[100] * currSim.femaleMortality[100] + currSim.femalePop[99] * currSim.femaleMortality[99]);
for (i = 99; i > 0; i--) {
currSim.malePop[i] = Math.round(currSim.malePop[i - 1] * currSim.maleMortality[i]);
currSim.femalePop[i] = Math.round(currSim.femalePop[i - 1] * currSim.femaleMortality[i]);
}
var totalbirths = 0;
for (i = 15; i < 50; i++) {
totalbirths += currSim.femalePop[i] * currSim.birthrate[i];
}
console.log("Total births: " + Math.round(totalbirths));
totalbirths = totalbirths * currSim.maleMortality[0]; // IMR
var malefract = 0.5;
var femalefract = 0.5;
currSim.malePop[0] = Math.round(totalbirths * malefract);
currSim.femalePop[0] = Math.round(totalbirths * femalefract);
// Add (or subtract) for migration
for (i = 0; i <= 16; i++) {
for (var j = 0; j <= 4; j++) {
currSim.malePop[5 * i + j] += Math.round(migMale[i] * currSim.netMigration / 5000.0);
currSim.femalePop[5 * i + j] += Math.round(migFemale[i] * currSim.netMigration / 5000.0);
}
}
currSim.pop = sumPop(currSim);
console.log("Year end pop: " + currSim.pop);
console.log("Net change was: " + (currSim.pop - temp));
}
// Change this function to update any necessary values
// when the pyramid bars are resized by the user.
var pyramidValsWereChanged = function(fVals, mVals) {
var i, j;
console.log("IN PYRAMIDVALUESWERECHANGED");
console.log(PyrValues[0]);
console.log(PyrValues[1]);
var curr = simState.sim[simState.currSim];
var currSim = curr.cstep[curr.currstep];
console.log("Start population is " + currSim.pop);
for (i=0; i< mVals.length; i++) {
if (mVals[i] !== PyrValues[1][i]) {
console.log("HERE WE GO: Changed male pyramid bar " + i);
if (i === 0) {
currSim.malePop[100] = mVals[i];
}
else {
for (j=0; j<5; j++) {
currSim.malePop[((20-i)*5)+j] = Math.round(mVals[i]/5.0);
}
}
PyrValues[1][i] = mVals[i];
}
if (fVals[i] !== PyrValues[0][i]) {
console.log("HERE WE GO: Changed female pyramid bar " + i);
if (i === 0) {
currSim.femalePop[100] = fVals[i];
}
else {
for (j=0; j<5; j++) {
currSim.femalePop[((20-i)*5)+j] = Math.round(fVals[i]/5.0);
}
}
PyrValues[0][i] = fVals[i];
}
}
currSim.pop = sumPop(currSim);
console.log(mVals);
console.log(fVals);
console.log("New population is " + currSim.pop);
displayState();
}
/* ------------------ START HERE ---------------------------- */
// Generic message for output window when there is nothing special to do.
var generalMsg = "You can click on the 'Options' button to choose from among the available simulation features, click on the 'Sim' button to advance the simulation, or click on one of the other buttons to set simulation parameters.";
var initCountry; // Initial country data from data file
var maxSteps = 8; // Total number of simulation steps supported
var stepSize = 10; // Number of years between each registered step in chart
var simState = {}; // Current simulation state object, it holds everything
var rChart; // graphael line chart object
var xArray = [];
var yArray = [];
var PyrValues = [];
// These next two arrays contain the distribution for migrants by sex
// and cohort. Each entry is for a 5-year cohort, starting with 0-4 and ending with 80+.
// The numbers indicate migrants of that catagory out of
// a total of 1000 migrants. The total of all 34 numbers should be 1000.
// Values are derived by averaging Figures 7 and 8 (p. 4-5) of
// http://pewhispanic.org/files/reports/107.pdf
var migMale = [6, 11, 14, 28, 48, 72, 70, 66, 60, 46, 36, 27, 17, 13, 9, 6, 6];
var migFemale = [5, 13, 16, 23, 35, 48, 54, 55, 49, 39, 33, 27, 20, 15, 13, 10, 13];
// Set up the interface
// Init Pyramid Panel
// Generates random populations between 0 and 2000000
var randomList = function() { // For Testing
var list = [];
for (var i = 1; i <= 20; i++) {
list.push(Math.floor(Math.random() * 19000000) + 1);
}
return list;
}
P.initPyramid(pyramidValsWereChanged, 25000000);
// P.drawPyramid(randomList(), randomList(), pyramidValsWereChanged);
// Population chart panel
var rChartPanel = new Raphael("plotArea", 450, 230);
// Simulation panel
$('p#initialPopField').text("Initial Population:");
tell(generalMsg);
var filename = getQueryParameter("filename");
if ((filename === undefined) || (filename === "undefined")) {
tell("Ooops! This page was opened with no file name given! Pehaps you tried to open it directly, instead of through IntlPop.html", "red");
} else if (filename === "") {
tell("Ooops! Empty file name!", "red");
} else {
var dataURL = initCountryObject(filename);
}
});