public static string ToStringReport(this IHistogram hist)
{
const string s_Count = "Count";
SortedList <HistogramKeys, HistogramEntry> m_Data =
new SortedList <HistogramKeys, HistogramEntry>();
foreach (var entry in hist)
{
m_Data.Add(entry.BucketKeys, entry);
}
int[] maxDimTitleLen = new int[hist.DimensionCount];
foreach (var d in hist.Dimensions)
{
maxDimTitleLen[d.Index] = d.Name.Length + 1;
}
int maxTitleLen = 0;
int maxValue = Convert.ToInt32(Math.Pow(10, s_Count.Length));
// Calculate max legth of partition titles in each dimension
foreach (var item in m_Data)
{
int titleLen = 0;
foreach (var d in hist.Dimensions)
{
int i = d.Index;
int n = hist.GetPartitionName(i, item.Key[i]).Length + 1;
if (n > maxDimTitleLen[i])
{
maxDimTitleLen[i] = n;
}
else
{
n = maxDimTitleLen[i];
}
titleLen += n;
}
if (titleLen > maxTitleLen)
{
maxTitleLen = titleLen;
}
if (item.Value.Count > maxValue)
{
maxValue = item.Value.Count;
}
}
int maxValueLen = maxValue.ToString().Length;
var result = new StringBuilder();
result.AppendFormat("{0}\n", hist.Title);
foreach (var d in hist.Dimensions)
{
result.AppendFormat("|{0}",
hist.GetDimention(d.Index).Name.PadLeft(maxDimTitleLen[d.Index] - 1));
}
result.AppendFormat("|{0}| %|Total%|\n", s_Count.PadLeft(maxValueLen));
foreach (var d in hist.Dimensions)
{
result.AppendFormat("|{0," + (maxDimTitleLen[d.Index] - 1) + "}",
new String('-', maxDimTitleLen[d.Index] - 1));
}
result.AppendFormat("|{0," + maxValueLen + "}|------|------|\n", new String('-', maxValueLen));
double tot = 0;
foreach (var item in m_Data)
{
var title = new StringBuilder();
foreach (var d in hist.Dimensions)
{
title.AppendFormat("|{0}",
hist.GetPartitionName(d.Index, item.Key[d.Index]).PadLeft(maxDimTitleLen[d.Index] - 1));
}
double pcnt = 100.0 * (double)item.Value.Count / hist.TotalSamples;
tot += pcnt;
result.AppendFormat(
"{0}|{1," + maxValueLen + "}|{2,6:##0.00}|{3,6:##0.00}|\n",
title.ToString().PadLeft(maxTitleLen), item.Value.Count, pcnt, tot);
}
return(result.ToString());
}
