Bringing external npm packages into an Angular 2 application

Greetings! I am a newcomer to Angular 2 and facing difficulties in importing the Regression npm module for utilizing the Linear Regression function within my Angular 2 application. My project setup includes Angular 2, Webpack, and TypeScript. I have executed the command npm install regression and added the script tag in my index.html file as follows:

<script src="node_modules/regression/src/regression.js"></script>

In addition, I have imported Regression in my App.Module like this:

import * as Regression from 'regression';

Despite these steps, when attempting to utilize the regression function, it is indicating that the function cannot be found:

let actualXY = [];
for (var j = 0; j <= 11; j++) {
        let entry = [];
        entry[0] = j+1;
        entry[1] = m.actuals[j];
        actualXY[j] = entry;
}
var result = regression('linear', actualXY);

Am I missing any crucial steps in importing the Regression package or is it simply not feasible?

Answer №1

When you import using

import * as Regression from 'regression;
, remember to use Regression instead of regression. The correct syntax should be Regression('linear', actualXY);. Additionally, there seems to be a missing quote after the imported regression. Just a friendly reminder: I may not know what regression is, but I'm providing my input based on logical reasoning.

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