jskit-plot is a javascript module for quickly plotting data with highcharts. When jskit-plot used with ML.js, and jskit-learn, you're left with the equialent R/Python toolset in JavaScript.
modelscript is a javascript module with simple and efficient tools for data mining and data analysis in JavaScript. When modelscript used with ML.js, pandas-js, and numjs, you're left with the equialent R/Python toolset in JavaScript.