Percentage-of-stocks-above-SMA-50

CODE:
using WealthLab.IndexLab;
using WealthLab.Backtest;
using System;
using WealthLab.Core;
using WealthLab.Indicators;
using System.Collections.Generic;

namespace WealthScript2 
{
    public class MyStrategy : UserStrategyBase
    {
        //create indicators and other objects here, this is executed prior to the main trading loop
        public override void Initialize(BarHistory bars)
        {
         ind1 = new CompAboveBelow(bars,"NASDAQ 100",2000,new TimeSeriesIndicatorWrapper(bars.Close),new SMA(bars.Close,50),"Above");
         PlotIndicator(ind1, WLColor.FromArgb(255,140,140,140), PlotStyle.Line);
        }

        //execute the strategy rules here, this is executed once for each bar in the backtest history
        public override void Execute(BarHistory bars, int idx)
        {
            if (!HasOpenPosition(bars, PositionType.Long))
            {
                //code your buy conditions here
            }
            else
            {
                //code your sell conditions here
            }
        }

        //declare private variables below

      private IndicatorBase ind1;
    }
}