generate-mock-features.js

// Create mock features for evaluating AWS ML performance

const fs = require('fs');

let header = [];

['training', 'batch-prediction']
    .map(s => {

        'abcdefghijklmnopqrstuvwxyz'
            .split('')
            .map(l => {
                '0123456789'
                    .split('')
                    .map(n => header.push(`${l}${n}`));
            });

        // console.log(header);
        // Target
        const TARGET = 't';
        if (s === 'training') {
            header.push(TARGET);
        }

        let mocks = (new Array(999))
            .fill(null)
            .map((me, mi) => {
                let mock = header
                // Training data includes target
                    .map(e => {
                        if (s !== 'training' && e === TARGET) {
                            parseFloat(Math.random().toFixed(2));
                        }
                    });
                return mock.join(',');
            });

        const result = [header]
              .concat(mocks)
              .join('\n');

        fs.writeFileSync(`mock-features-${s}.csv`, result);
    });