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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57 lines
1.6 KiB
57 lines
1.6 KiB
4 years ago
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'use strict';
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var debug = require('debug')('base:templates:helper');
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var utils = require('../utils');
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var List = require('../list');
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module.exports = function(app, collection) {
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var plural = collection.options.plural;
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/**
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* Creates an async helper for each view collection, and exposes
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* the collection as an instance of `List` to the helper context.
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*
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* If the helper is used as a handlebars block helper, the collection
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* array will be exposed as context to `options.fn()`, otherwise
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* the `List` array is returned.
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*
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* ```js
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* // create a collection
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* app.create('pages');
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*
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* // use the `pages` helper
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* // {{#pages}} ... {{/pages}}
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* ```
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* @param {Object} `options` Locals or handlebars options object
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* @param {String} `callback` Handled internally by the templates library.
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* @api public
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*/
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app.asyncHelper(plural, function listHelper(options, cb) {
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if (typeof options === 'function') {
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cb = options;
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options = {};
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}
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options = options || {};
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if (typeof options === 'string') {
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var singular = this.app.getAsyncHelper(collection.options.inflection) ||
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app.getAsyncHelper(collection.options.inflection);
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return singular.apply(this, arguments);
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}
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debug('list helper "%s", "%j"', plural, options);
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var ctx = new List(collection);
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// render block helper with list as context
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if (typeof options.fn === 'function' && options.hash) {
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cb(null, options.fn(ctx));
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return;
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}
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// return list when not used as a block helper
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cb(null, ctx);
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});
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};
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