/// <summary>
/// returns a
/// <c>double[]</c>
/// array of length
/// <c>depth+1</c>
/// , containing the conditional counts on a
/// <c>depth</c>
/// -length list given each level of conditional
/// distribution from 0 to
/// <c>depth</c>
/// .
/// </summary>
public virtual double[] GetCounts(IList <K> l)
{
if (l.Count != depth)
{
WrongDepth();
}
//throws exception
double[] counts = new double[depth + 1];
GeneralizedCounter <K> next = this;
counts[0] = next.TotalCount();
IEnumerator <K> i = l.GetEnumerator();
int j = 1;
K o = i.Current;
while (i.MoveNext())
{
next = next.ConditionalizeHelper(o);
counts[j] = next.TotalCount();
o = i.Current;
j++;
}
counts[depth] = next.GetCount(o);
return(counts);
}
/// <summary>for testing purposes only</summary>
public static void Main(string[] args)
{
object[] a1 = new object[] { "a", "b" };
object[] a2 = new object[] { "a", "b" };
System.Console.Out.WriteLine(Arrays.Equals(a1, a2));
GeneralizedCounter <string> gc = new GeneralizedCounter <string>(3);
gc.IncrementCount(Arrays.AsList(new string[] { "a", "j", "x" }), 3.0);
gc.IncrementCount(Arrays.AsList(new string[] { "a", "l", "x" }), 3.0);
gc.IncrementCount(Arrays.AsList(new string[] { "b", "k", "y" }), 3.0);
gc.IncrementCount(Arrays.AsList(new string[] { "b", "k", "z" }), 3.0);
System.Console.Out.WriteLine("incremented counts.");
System.Console.Out.WriteLine(gc.DumpKeys());
System.Console.Out.WriteLine("string representation of generalized counter:");
System.Console.Out.WriteLine(gc.ToString());
gc.PrintKeySet();
System.Console.Out.WriteLine("entry set:\n" + gc.EntrySet());
ArrayPrintDouble(gc.GetCounts(Arrays.AsList(new string[] { "a", "j", "x" })));
ArrayPrintDouble(gc.GetCounts(Arrays.AsList(new string[] { "a", "j", "z" })));
ArrayPrintDouble(gc.GetCounts(Arrays.AsList(new string[] { "b", "k", "w" })));
ArrayPrintDouble(gc.GetCounts(Arrays.AsList(new string[] { "b", "k", "z" })));
GeneralizedCounter <string> gc1 = gc.Conditionalize(Arrays.AsList(new string[] { "a" }));
gc1.IncrementCount(Arrays.AsList(new string[] { "j", "x" }));
gc1.IncrementCount2D("j", "z");
GeneralizedCounter <string> gc2 = gc1.Conditionalize(Arrays.AsList(new string[] { "j" }));
gc2.IncrementCount1D("x");
System.Console.Out.WriteLine("Pretty-printing gc after incrementing gc1:");
gc.PrettyPrint();
System.Console.Out.WriteLine("Total: " + gc.TotalCount());
gc1.PrintKeySet();
System.Console.Out.WriteLine("another entry set:\n" + gc1.EntrySet());
ClassicCounter <IList <string> > c = gc.CounterView();
System.Console.Out.WriteLine("string representation of counter view:");
System.Console.Out.WriteLine(c.ToString());
double d1 = c.GetCount(Arrays.AsList(new string[] { "a", "j", "x" }));
double d2 = c.GetCount(Arrays.AsList(new string[] { "a", "j", "w" }));
System.Console.Out.WriteLine(d1 + " " + d2);
ClassicCounter <IList <string> > c1 = gc1.CounterView();
System.Console.Out.WriteLine("Count of {j,x} -- should be 3.0\t" + c1.GetCount(Arrays.AsList(new string[] { "j", "x" })));
System.Console.Out.WriteLine(c.KeySet() + " size " + c.KeySet().Count);
System.Console.Out.WriteLine(c1.KeySet() + " size " + c1.KeySet().Count);
System.Console.Out.WriteLine(c1.Equals(c));
System.Console.Out.WriteLine(c.Equals(c1));
System.Console.Out.WriteLine(c.Equals(c));
System.Console.Out.WriteLine("### testing equality of regular Counter...");
ClassicCounter <string> z1 = new ClassicCounter <string>();
ClassicCounter <string> z2 = new ClassicCounter <string>();
z1.IncrementCount("a1");
z1.IncrementCount("a2");
z2.IncrementCount("b");
System.Console.Out.WriteLine(z1.Equals(z2));
System.Console.Out.WriteLine(z1.ToString());
System.Console.Out.WriteLine(z1.KeySet().ToString());
}
/// <summary>Equivalent to incrementCount( new Object[] { first, second, third }, count ).</summary>
/// <remarks>
/// Equivalent to incrementCount( new Object[] { first, second, third }, count ).
/// Makes the special case easier, and also more efficient.
/// </remarks>
public virtual void IncrementCount3D(K first, K second, K third, double count)
{
if (depth != 3)
{
WrongDepth();
}
//throws exception
this.AddToTotal(count);
GeneralizedCounter <K> next = this.ConditionalizeHelper(first);
next.IncrementCount2D(second, third, count);
}
public virtual GeneralizedCounter <K> ReverseKeys()
{
GeneralizedCounter <K> result = new GeneralizedCounter <K>();
ICollection <KeyValuePair <IList <K>, double> > entries = EntrySet();
foreach (KeyValuePair <IList <K>, double> entry in entries)
{
IList <K> list = entry.Key;
double count = entry.Value;
Java.Util.Collections.Reverse(list);
result.IncrementCount(list, count);
}
return(result);
}
/// <summary>same as incrementCount(List, double) but as if Object o were at the end of the list</summary>
public virtual void IncrementCount(IList <K> l, K o, double count)
{
if (l.Count != depth - 1)
{
WrongDepth();
}
GeneralizedCounter <K> next = this;
foreach (K o2 in l)
{
next.AddToTotal(count);
next = next.ConditionalizeHelper(o2);
}
next.AddToTotal(count);
next.IncrementCount1D(o, count);
}
/// <summary>
/// Like
/// <see cref="ClassicCounter{E}"/>
/// , this currently returns true if the count is
/// explicitly 0.0 for something
/// </summary>
public virtual bool ContainsKey(IList <K> key)
{
// if(! (key instanceof Object[]))
// return false;
// Object[] o = (Object[]) key;
GeneralizedCounter <K> next = this;
for (int i = 0; i < key.Count - 1; i++)
{
next = next.ConditionalizeHelper(key[i]);
if (next == null)
{
return(false);
}
}
return(next.map.Contains(key[key.Count - 1]));
}
/* haven't decided about access for this one yet */
private GeneralizedCounter <K> ConditionalizeHelper(K o)
{
if (depth > 1)
{
GeneralizedCounter <K> next = ErasureUtils.UncheckedCast(map[o]);
if (next == null)
{
// adds a new GeneralizedCounter if needed
map[o] = (next = new GeneralizedCounter <K>(depth - 1));
}
return(next);
}
else
{
throw new Exception("Error -- can't conditionalize a distribution of depth 1");
}
}
/// <summary>
/// A convenience method equivalent to <code>
/// <see cref="GeneralizedCounter{K}.GetCounts(System.Collections.IList{E})"/>
/// ({o1,o2,o3})</code>; works only for depth 3
/// GeneralizedCounters
/// </summary>
public virtual double GetCount(K o1, K o2, K o3)
{
if (depth != 3)
{
WrongDepth();
}
GeneralizedCounter <K> gc1 = ErasureUtils.UncheckedCast <GeneralizedCounter <K> >(map[o1]);
if (gc1 == null)
{
return(0.0);
}
else
{
return(gc1.GetCount(o2, o3));
}
}
/// <summary>
/// returns a GeneralizedCounter conditioned on the objects in the
/// <see cref="System.Collections.IList{E}"/>
/// argument. The length of the argument
/// <see cref="System.Collections.IList{E}"/>
/// must be less than the depth of the GeneralizedCounter.
/// </summary>
public virtual GeneralizedCounter <K> Conditionalize(IList <K> l)
{
int n = l.Count;
if (n >= Depth())
{
throw new Exception("Error -- attempted to conditionalize a GeneralizedCounter of depth " + Depth() + " on a vector of length " + n);
}
else
{
GeneralizedCounter <K> next = this;
foreach (K o in l)
{
next = next.ConditionalizeHelper(o);
}
return(next);
}
}
/// <summary>
/// Adds to count for the
/// <see cref="GeneralizedCounter{K}.Depth()"/>
/// -dimensional key
/// <paramref name="l"/>
/// .
/// </summary>
public virtual void IncrementCount(IList <K> l, double count)
{
if (l.Count != depth)
{
WrongDepth();
}
//throws exception
GeneralizedCounter <K> next = this;
IEnumerator <K> i = l.GetEnumerator();
K o = i.Current;
while (i.MoveNext())
{
next.AddToTotal(count);
next = next.ConditionalizeHelper(o);
o = i.Current;
}
next.IncrementCount1D(o, count);
}
private void PrettyPrint(PrintWriter pw, string buffer, string bufferIncrement)
{
if (depth == 1)
{
foreach (KeyValuePair <object, double> e in EntrySet())
{
object key = e.Key;
double count = e.Value;
pw.Println(buffer + key + "\t" + count);
}
}
else
{
foreach (K key in TopLevelKeySet())
{
GeneralizedCounter <K> gc1 = Conditionalize(Arrays.AsList(ErasureUtils.UncheckedCast <K[]>(new object[] { key })));
pw.Println(buffer + key + "\t" + gc1.TotalCount());
gc1.PrettyPrint(pw, buffer + bufferIncrement, bufferIncrement);
}
}
}
public virtual string ToString(string param)
{
switch (param)
{
case "contingency":
{
StringBuilder sb = new StringBuilder();
foreach (K obj in ErasureUtils.SortedIfPossible(TopLevelKeySet()))
{
sb.Append(obj);
sb.Append(" = ");
GeneralizedCounter <K> gc = ConditionalizeOnce(obj);
sb.Append(gc);
sb.Append("\n");
}
return(sb.ToString());
}
case "sorted":
{
StringBuilder sb = new StringBuilder();
sb.Append("{\n");
foreach (K obj in ErasureUtils.SortedIfPossible(TopLevelKeySet()))
{
sb.Append(obj);
sb.Append(" = ");
GeneralizedCounter <K> gc = ConditionalizeOnce(obj);
sb.Append(gc);
sb.Append("\n");
}
sb.Append("}\n");
return(sb.ToString());
}
default:
{
return(ToString());
}
}
}
internal CounterView(GeneralizedCounter <K> _enclosing)
{
this._enclosing = _enclosing;
}
