示例#1
0
        /// <inheritdoc />
        public override bool Equals(object obj)
        {
            if (object.ReferenceEquals(null, obj))
            {
                return(false);
            }

            if (object.ReferenceEquals(this, obj))
            {
                return(true);
            }

            if (!(obj is RejectCurveTarget))
            {
                return(false);
            }

            RejectCurveTarget other = (RejectCurveTarget)obj;

            return(this.Target == other.Target &&
                   this.Point == other.Point);
        }
        /// <summary>
        /// Writes all reject curves.
        /// </summary>
        /// <param name="writer">A stream to write the report to.</param>
        /// <param name="all">Classification results for all classes.</param>
        /// <param name="classes">Classification results for each class.</param>
        private static void WriteRejectCurves(TextWriter writer, ClassSummary <T> all, IList <ClassSummary <T> > classes)
        {
            float[] errorRates = { 0.001f, 0.005f, 0.01f, 0.02f, 0.03f, 0.04f, 0.05f, 0.06f, 0.07f, 0.08f, 0.09f, 0.10f, 0.11f };

            List <ClassSummary <T> > combined = new List <ClassSummary <T> >()
            {
                all
            };

            combined.AddRange(classes);

            string separator = new string('-', 10 + (30 * combined.Count));

            // write class names
            writer.Write("{0,-10}", string.Empty);
            foreach (ClassSummary <T> cls in combined)
            {
                writer.Write("{0,-30}", cls.Label);
            }

            writer.WriteLine();
            writer.WriteLine(separator);

            // write header
            writer.Write("{0,-10}", "Target");
            for (int i = 0, ii = combined.Count; i < ii; i++)
            {
                writer.Write("{0,-10}{1,-10}{2,-10}", "Error", "Accept", "Thresh");
            }

            writer.WriteLine();

            // write targets
            foreach (float errorRate in errorRates)
            {
                writer.Write("{0,-10:P2}", errorRate);

                foreach (ClassSummary <T> cls in combined)
                {
                    RejectCurveTarget target = cls.Statistics.RejectCurveTruth.GetTarget(errorRate);
                    if (target.Point.HasValue)
                    {
                        writer.Write(
                            "{0,-10:P2}{1,-10:P2}{2,-10:N0}",
                            target.Point.Value.ErrorRate,
                            target.Point.Value.AcceptRate,
                            target.Point.Value.Threshold);
                    }
                    else
                    {
                        writer.Write(
                            "{0,-10}{0,-10}{0,-10}",
                            "N/A");
                    }
                }

                writer.WriteLine();
            }

            writer.WriteLine(separator);

            // write area
            writer.Write("{0,-10}", "Area:");
            foreach (ClassSummary <T> cls in combined)
            {
                float average = cls.Statistics.RejectCurveTruth.GetArea(0.0f, errorRates.Last(), 100);
                writer.Write("{0,-30:P2}", average);
            }

            writer.WriteLine();
        }