AIMA.Core.Learning.Framework.DataSetSpecification.getTarget C# (CSharp) Method

        public String getTarget()
        {
            return targetAttribute;
        }

        public double getInformationFor()
        {
            String attributeName            = specification.getTarget();
            Dictionary <String, int> counts = new Dictionary <String, int>();

            foreach (Example e in examples)
            {
                String val = e.getAttributeValueAsString(attributeName);
                if (counts.ContainsKey(val))
                {
                    counts[val]++;
                }
                else
                {
                    counts.Add(val, 1);
                }
            }

            double[] data = new double[counts.Keys.Count];
            int      i    = 0;

            foreach (string key in counts.Keys)
            {
                data[i] = counts[key];
                i++;
            }

            data = Util.normalize(data);

            return(Util.information(data));
        }