def accuracy_sum()

in scripts/imagenet/utils.py [0:0]

• 10 lines of code
• 2 McCabe index (conditional complexity)

def accuracy_sum(output, target, topk=(1,)):
    """Computes the precision@k for the specified values of k"""
    maxk = max(topk)

    _, pred = output.topk(maxk, 1, True, True)
    pred = pred.t()
    correct = pred.eq(target.view(1, -1).expand_as(pred))

    res = []
    for k in topk:
        correct_k = correct[:k].view(-1).float().sum(0, keepdim=True)
        res.append(correct_k.mul_(100.0))
    return res