public override void Update(NDArray labels, NDArray preds)
{
if (labels == null)
{
throw new ArgumentNullException(nameof(labels));
}
if (preds == null)
{
throw new ArgumentNullException(nameof(preds));
}
Logging.CHECK_EQ(labels.GetShape().Count, 1);
var len = labels.GetShape()[0];
var predData = new mx_float[len];
var labelData = new mx_float[len];
preds.ArgmaxChannel().SyncCopyToCPU(predData);
labels.SyncCopyToCPU(labelData);
for (var i = 0; i < len; ++i)
{
this.SumMetric += Math.Abs(predData[i] - labelData[i]) < float.Epsilon ? 1 : 0;
this.NumInst += 1;
}
}
