Function getLoss

src/playground.ts:840–849

(network: nn.Node[][], dataPoints: Example2D[])

}

function getLoss(network: nn.Node[][], dataPoints: Example2D[]): number {
  let loss = 0;
  for (let i = 0; i < dataPoints.length; i++) {
    let dataPoint = dataPoints[i];
    let input = constructInput(dataPoint.x, dataPoint.y);
    let output = nn.forwardProp(network, input);
    loss += nn.Errors.SQUARE.error(output, dataPoint.label);
  }
  return loss / dataPoints.length;
}

function updateUI(firstStep = false) {
  // Update the links visually.