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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99 lines
2.1 KiB
99 lines
2.1 KiB
4 years ago
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'use strict';
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/**
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* Sticky bottom bar user interface
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*/
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var util = require('util');
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var rlUtils = require('../utils/readline');
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var utils = require('../utils/');
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var Base = require('./baseUI');
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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(opt) {
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opt || (opt = {});
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Base.apply(this, arguments);
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this.log = utils.through(this.writeLog.bind(this));
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this.bottomBar = opt.bottomBar || '';
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this.render();
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}
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util.inherits(Prompt, Base);
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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() {
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this.write(this.bottomBar);
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return this;
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};
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/**
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* Update the bottom bar content and rerender
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* @param {String} bottomBar Bottom bar content
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* @return {Prompt} self
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*/
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Prompt.prototype.updateBottomBar = function(bottomBar) {
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this.bottomBar = bottomBar;
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rlUtils.clearLine(this.rl, 1);
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return this.render();
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};
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/**
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* Rerender the prompt
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* @return {Prompt} self
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*/
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Prompt.prototype.writeLog = function(data) {
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rlUtils.clearLine(this.rl, 1);
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this.rl.output.write(this.enforceLF(data.toString()));
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return this.render();
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};
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/**
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* Make sure line end on a line feed
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* @param {String} str Input string
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* @return {String} The input string with a final line feed
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*/
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Prompt.prototype.enforceLF = function(str) {
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return str.match(/[\r\n]$/) ? str : str + '\n';
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};
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/**
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* Helper for writing message in Prompt
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* @param {Prompt} prompt - The Prompt object that extends tty
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* @param {String} message - The message to be output
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*/
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Prompt.prototype.write = function(message) {
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var msgLines = message.split(/\n/);
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this.height = msgLines.length;
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// Write message to screen and setPrompt to control backspace
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var last = msgLines[msgLines.length - 1];
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this.rl.setPrompt(last);
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if (this.rl.output.rows === 0 && this.rl.output.columns === 0) {
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/**
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* When it's a tty through serial port there's no terminal info and
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* the render will malfunction, so we need ensure the cursor moves
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* to the leftmost position for rendering.
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*/
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rlUtils.left(this.rl, message.length + this.rl.line.length);
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}
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this.rl.output.write(message);
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};
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