Length() public method

public Length ( ) : int
return int
Exemplo n.º 1
0
        public static InputSample[] Resample(int num_bootstraps, InputSample orig_vals, Random rng)
        {
            // the resampled values go here
            var ss = new InputSample[num_bootstraps];

            // sample with replacement to get i bootstrapped samples
            for (var i = 0; i < num_bootstraps; i++)
            {
                var s = new InputSample(orig_vals.Rows(), orig_vals.Columns());

                // make a vector of index counters
                var inc_count = new int[orig_vals.Length()];

                // randomly sample j values, with replacement
                for (var j = 0; j < orig_vals.Length(); j++)
                {
                    // randomly select a value from the original values
                    int input_idx = rng.Next(0, orig_vals.Length());
                    inc_count[input_idx] += 1;
                    if (input_idx >= orig_vals.Length())
                    {
                        throw new Exception("input_idx >= orig_vals.Length()");
                    }
                    string value = orig_vals.GetInput(input_idx);
                    s.Add(value);
                }

                // indicate which indices are excluded
                s.SetIncludes(inc_count);

                // add the new InputSample to the output array
                ss[i] = s;
            }

            return(ss);
        }
Exemplo n.º 2
0
        public static InputSample[] Resample(int num_bootstraps, InputSample orig_vals, Random rng)
        {
            // the resampled values go here
            var ss = new InputSample[num_bootstraps];

            // sample with replacement to get i bootstrapped samples
            for (var i = 0; i < num_bootstraps; i++)
            {
                var s = new InputSample(orig_vals.Rows(), orig_vals.Columns());

                // make a vector of index counters
                var inc_count = new int[orig_vals.Length()];

                // randomly sample j values, with replacement
                for (var j = 0; j < orig_vals.Length(); j++)
                {
                    // randomly select a value from the original values
                    int input_idx = rng.Next(0, orig_vals.Length());
                    inc_count[input_idx] += 1;
                    if (input_idx >= orig_vals.Length())
                    {
                        throw new Exception("input_idx >= orig_vals.Length()");
                    }
                    string value = orig_vals.GetInput(input_idx);
                    s.Add(value);
                }

                // indicate which indices are excluded
                s.SetIncludes(inc_count);

                // add the new InputSample to the output array
                ss[i] = s;
            }

            return ss;
        }