How to use EvaluateExpression method of NBi.Core.Calculation.Ranking.Scoring.DataRowScorer class

Best NBi code snippet using NBi.Core.Calculation.Ranking.Scoring.DataRowScorer.EvaluateExpression

DataRowScorer.cs

Source:DataRowScorer.cs

...36            if (alias != null)37                return row.ItemArray[alias.Column];38            var expression = expressions?.SingleOrDefault(x => x.Name == name);39            if (expression != null)40                return EvaluateExpression(expression, row);41            var column = row.Table.Columns.Cast<DataColumn>().SingleOrDefault(x => x.ColumnName == name);42            if (column != null)43                return row[column.ColumnName];44            throw new ArgumentException($"The value '{name}' is not recognized as a column name or a column position or a column alias or an expression.");45        }46        protected object EvaluateExpression(IColumnExpression expression, DataRow row)47        {48            var exp = new NCalc.Expression(expression.Value);49            var factory = new ColumnIdentifierFactory(); 50            exp.EvaluateParameter += delegate (string name, NCalc.ParameterArgs args)51            {52                args.Result = GetValueFromRow(row, factory.Instantiate(name));53            };54            return exp.Evaluate();55        }56        57    }58}...

EvaluateExpression

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using NBi.Core.Calculation.Ranking.Scoring;7using System.Data;8{9    {10        static void Main(string[] args)11        {12            DataRow row = new DataTable().NewRow();13            row["a"] = 1;14            row["b"] = 2;15            row["c"] = 3;16            var scorer = new DataRowScorer(row);17            Console.WriteLine(scorer.EvaluateExpression("a+b"));18            Console.WriteLine(scorer.EvaluateExpression("a+b+c"));19            Console.WriteLine(scorer.EvaluateExpression("a+b+c+1"));20            Console.WriteLine(scorer.EvaluateExpression("a+b+c+1+1"));21            Console.WriteLine(scorer.EvaluateExpression("a+b+c+1+1+1"));22            Console.WriteLine(scorer.EvaluateExpression("a+b+c+1+1+1+1"));23            Console.WriteLine(scorer.EvaluateExpression("a+b+c+1+1+1+1+1"));24            Console.WriteLine(scorer.EvaluateExpression("a+b+c+1+1+1+1+1+1"));25            Console.WriteLine(scorer.EvaluateExpression("a+b+c+1+1+1+1+1+1+1"));26            Console.WriteLine(scorer.EvaluateExpression("a+b+c+1+1+1+1+1+1+1+1"));27            Console.WriteLine(scorer.EvaluateExpression("a+b+c+1+1+1+1+1+1+1+1+1"));28            Console.WriteLine(scorer.EvaluateExpression("a+b+c+1+1+1+1+1+1+1+1+1+1"));29            Console.WriteLine(scorer.EvaluateExpression("a+b+c+1+1+1+1+1+1+1+1+1+1+1"));30            Console.WriteLine(scorer.EvaluateExpression("a+b+c+1+1+1+1+1+1+1+1+1+1+1+1"));31            Console.WriteLine(scorer.EvaluateExpression("a+b+c+1+1+1+1+1+1+1+1+1+1+1+1+1"));32            Console.WriteLine(scorer.EvaluateExpression("a+b+c+1+1

EvaluateExpression

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Data;6using System.Threading.Tasks;7using NBi.Core.Calculation.Ranking.Scoring;8using NBi.Core.Calculation.Ranking;9using NBi.Core.Calculation.Ranking.Order;10{11    {12        static void Main(string[] args)13        {14            DataTable dt = new DataTable();15            dt.Columns.Add("Column1", typeof(double));16            dt.Rows.Add(1);17            DataRowScorer drs = new DataRowScorer();18            RankingScorer rs = new RankingScorer();19            RankingOrder ro = new RankingOrder();20            Ranking r = new Ranking(rs, ro);21            RankingEngine re = new RankingEngine(r);22            DataRow dr = dt.NewRow();23            dr["Column1"] = 1;24            dt.Rows.Add(dr);25            RankingEngineArgs rea = new RankingEngineArgs(dt, re);26            RankingEngineResult rer = new RankingEngineResult(rea);27            drs.EvaluateExpression(rer, dr, "Column1", "1");

EvaluateExpression

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Data;6using NBi.Core.Calculation.Ranking.Scoring;7using NBi.Core.Calculation.Ranking;8{9    {10        static void Main(string[] args)11        {12            DataTable dt = new DataTable();13            dt.Columns.Add("Col1", typeof(int));14            dt.Columns.Add("Col2", typeof(int));15            dt.Columns.Add("Col3", typeof(int));16            dt.Columns.Add("Col4", typeof(int));17            dt.Columns.Add("Col5", typeof(int));18            dt.Columns.Add("Col6", typeof(int));19            dt.Columns.Add("Col7", typeof(int));20            dt.Columns.Add("Col8", typeof(int));21            dt.Columns.Add("Col9", typeof(int));22            dt.Columns.Add("Col10", typeof(int));23            DataRow dr = dt.NewRow();24            dr["Col1"] = 1;25            dr["Col2"] = 2;26            dr["Col3"] = 3;27            dr["Col4"] = 4;28            dr["Col5"] = 5;29            dr["Col6"] = 6;30            dr["Col7"] = 7;31            dr["Col8"] = 8;32            dr["Col9"] = 9;33            dr["Col10"] = 10;34            dt.Rows.Add(dr);35            var scorer = new DataRowScorer(new RankingSettings("Col1", "Col2", "Col3", "Col4", "Col5", "Col6", "Col7", "Col8", "Col9", "Col10"));36            var result = scorer.EvaluateExpression("Col1 + Col2 + Col3 + Col4 + Col5 + Col6 + Col7 + Col8 + Col9 + Col10", dt.Rows[0]);37        }38    }39}

EvaluateExpression

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Data;6using NBi.Core.Calculation.Ranking.Scoring;7using System.Collections;8{9    {10        static void Main(string[] args)11        {12            DataTable table = new DataTable();13            table.Columns.Add("ID", typeof(int));14            table.Columns.Add("Name", typeof(string));15            table.Columns.Add("Score", typeof(int));16            table.Columns.Add("Rank", typeof(int));17            table.Columns.Add("Score2", typeof(int));18            table.Rows.Add(1, "A", 10, 1, 10);19            table.Rows.Add(2, "B", 20, 2, 20);20            table.Rows.Add(3, "C", 30, 3, 30);21            table.Rows.Add(4, "D", 40, 4, 40);22            table.Rows.Add(5, "E", 50, 5, 50);23            table.Rows.Add(6, "F", 60, 6, 60);24            table.Rows.Add(7, "G", 70, 7, 70);25            table.Rows.Add(8, "H", 80, 8, 80);26            table.Rows.Add(9, "I", 90, 9, 90);27            table.Rows.Add(10, "J", 100, 10, 100);28            DataRowScorer scorer = new DataRowScorer();29            scorer.EvaluateExpression(table, "Score");30            scorer.EvaluateExpression(table, "Score2");31            scorer.EvaluateExpression(table, "Score+Score2");32            foreach (DataRow row in table.Rows)33            {34                Console.WriteLine("ID: {0}, Score: {1}, Score2: {2}, Score+Score2: {3}", row["ID"], row["Score"], row["Score2"], row["Score+Score2"]);35            }36            Console.ReadKey();37        }38    }39}

EvaluateExpression

Using AI Code Generation

1using System.Data;2using NBi.Core.Calculation.Ranking.Scoring;3using System.Collections.Generic;4using System;5using System.Collections;6using System.Linq;7using System.Text;8using System.Threading.Tasks;9{10    public static void Main()11    {12        DataTable table = new DataTable();13        table.Columns.Add("Column1", typeof(string));14        table.Columns.Add("Column2", typeof(string));15        table.Columns.Add("Column3", typeof(string));16        table.Columns.Add("Column4", typeof(string));17        table.Columns.Add("Column5", typeof(string));18        table.Columns.Add("Column6", typeof(string));19        table.Columns.Add("Column7", typeof(string));20        table.Columns.Add("Column8", typeof(string));21        table.Columns.Add("Column9", typeof(string));22        table.Columns.Add("Column10", typeof(string));23        table.Columns.Add("Column11", typeof(string));24        table.Columns.Add("Column12", typeof(string));25        table.Columns.Add("Column13", typeof(string));26        table.Columns.Add("Column14", typeof(string));27        table.Columns.Add("Column15", typeof(string));28        table.Columns.Add("Column16", typeof(string));29        table.Columns.Add("Column17", typeof(string));30        table.Columns.Add("Column18", typeof(string));31        table.Columns.Add("Column19", typeof(string));32        table.Columns.Add("Column20", typeof(string));33        table.Columns.Add("Column21", typeof(string));34        table.Columns.Add("Column22", typeof(string));35        table.Columns.Add("Column23", typeof(string));36        table.Columns.Add("Column24", typeof(string));37        table.Columns.Add("Column25", typeof(string));38        table.Columns.Add("Column26", typeof(string));39        table.Columns.Add("Column27", typeof(string));40        table.Columns.Add("Column28", typeof(string));41        table.Columns.Add("Column29", typeof(string));42        table.Columns.Add("Column30", typeof(string));43        table.Columns.Add("Column31", typeof(string));44        table.Columns.Add("Column32", typeof(string));45        table.Columns.Add("Column33", typeof(string));46        table.Columns.Add("Column34", typeof(string));47        table.Columns.Add("Column35", typeof(string));48        table.Columns.Add("Column36", typeof(string));49        table.Columns.Add("Column37", typeof(string));50        table.Columns.Add("Column38", typeof(string));51        table.Columns.Add("Column39", typeof(string));52        table.Columns.Add("Column40",

EvaluateExpression

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Data;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7using NBi.Core.Calculation.Ranking.Scoring;8{9    {10        static void Main(string[] args)11        {12            DataTable dt = new DataTable();13            dt.Columns.Add("col1", typeof(int));14            dt.Columns.Add("col2", typeof(int));15            dt.Rows.Add(1, 2);16            DataRow row = dt.Rows[0];17            DataRowScorer scorer = new DataRowScorer(row);18            var result = scorer.EvaluateExpression("1+1");19            Console.WriteLine(result);20            Console.ReadLine();21        }22    }23}24var result = scorer.EvaluateExpression("col1 + col2");25var col1 = new ColumnExpression("col1", "col1");26var col2 = new ColumnExpression("col2",

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