package commons.math;
import commons.application.ctx.Context;
import basics.math.BasicStatistics;
public class BasicStatisticsCtx
{

public static BasicStatistics instance (String key, Context ctx)
{
   if (ctx.containsKey(key))
      return (BasicStatistics) ctx.getr(key, (BasicStatistics) null);
   BasicStatistics b = new BasicStatistics();
   ctx.put(key, b);
   return b;
}

public static  void add (String key, Context ctx, double v)
{
   instance(key, ctx).add(v);
}

public static void remove (String key, Context ctx)
{
   if (ctx.containsKey(key))
      ctx.remove(key);
}

private BasicStatisticsCtx()
{}
}