private float?OnePoint()
{
float sum = 0;
int boundary;
if (_block.Length - _index < _n)
{
boundary = _n - (_block.Length - _index);
for (; _index < _block.Length; _index++)
{
sum += _block[_index];
}
_block.Clear();
_source.LoadBlock(_block);
_index = 0;
}
else
{
boundary = _index + _n;
}
for (; _index < boundary; _index++)
{
sum += _block[_index];
}
return(sum / _n);
}
private float?OnePoint()
{
_block.Clear();
int length = _collector.CollectPoints(_block, _n);
//how to handle?
if (length < _n)
{
return(null);
}
return(Average());
}