StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
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103 lines
1.8 KiB
103 lines
1.8 KiB
4 years ago
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'use strict';
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/**
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* `confirm` type prompt
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*/
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var util = require('util');
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var observe = require('../utils/events');
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var utils = require('../utils/');
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var Base = require('./base');
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/**
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* Module exports
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*/
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module.exports = Prompt;
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/**
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* Constructor
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*/
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function Prompt() {
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Base.apply(this, arguments);
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var rawDefault = true;
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utils.extend(this.opt, {
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filter: function(input) {
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var value = rawDefault;
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if (input != null && input !== '') {
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value = /^y(es)?/i.test(input);
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}
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return value;
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}.bind(this)
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});
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if (typeof this.opt.default === 'boolean') {
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rawDefault = this.opt.default;
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}
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this.opt.default = rawDefault ? 'Y/n' : 'y/N';
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return this;
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}
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util.inherits(Prompt, Base);
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/**
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* Start the Inquiry session
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* @param {Function} cb Callback when prompt is done
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* @return {this}
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*/
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Prompt.prototype._run = function(cb) {
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this.done = cb;
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// Once user confirm (enter key)
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var events = observe(this.rl);
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events.keypress.takeUntil(events.line).forEach(this.onKeypress.bind(this));
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events.line.take(1).forEach(this.onEnd.bind(this));
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// Init
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this.render();
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return this;
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};
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/**
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* Render the prompt to screen
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* @return {Prompt} self
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*/
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Prompt.prototype.render = function(answer) {
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var message = this.getQuestion();
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if (typeof answer === 'boolean') {
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message += utils.chalk.cyan(answer ? 'Yes' : 'No');
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} else {
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message += this.rl.line;
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}
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this.screen.render(message);
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return this;
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};
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/**
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* When user press `enter` key
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*/
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Prompt.prototype.onEnd = function(input) {
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this.status = 'answered';
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var output = this.opt.filter(input);
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this.render(output);
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this.screen.done();
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this.done(input); // send 'input' because the master class will refilter
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};
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/**
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* When user press a key
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*/
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Prompt.prototype.onKeypress = function() {
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this.render();
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};
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