/// <summary>
/// Configure the histogram - sumw2, for example.
/// </summary>
/// <param name="h"></param>
private static void ConfigureHisto(ROOTNET.Interface.NTH1 h)
{
// Keep track of statistics
h.Sumw2();
// Make sure it doesn't get associated with a file. This is ok after it comes back from
// a query.. :-)
h.Directory = null;
}
/// <summary>
/// Normalize this histo and return it.
/// </summary>
/// <param name="histo"></param>
/// <param name="toArea">The area the histogram should be noramlized to</param>
/// <returns></returns>
public static ROOTNET.Interface.NTH1 Normalize(this ROOTNET.Interface.NTH1 histo, double toArea = 1.0)
{
histo.Scale(toArea / histo.Integral());
return(histo);
}
/// <summary>
/// Reformat the name.
/// </summary>
/// <param name="h"></param>
/// <param name="format">string.Format argument, arg {0} will be the old histogram name</param>
/// <returns></returns>
private static ROOTNET.Interface.NTH1 AppendName(ROOTNET.Interface.NTH1 h, string format)
{
h.Name = string.Format(format, h.Name);
return(h);
}
/// <summary>
/// Save a plot to a TDirectory. Return the plot so it can also be used in other
/// places.
///
/// Temp Fix: We need to set the object owner so that this object won't be cleaned up during
/// GC, however, ROOT.NET doesn't support it yet. So instead we will just set it to null and
/// return null for now. To be fixed when we update ROOT.NET.
/// </summary>
/// <param name="hist"></param>
/// <param name="dir"></param>
/// <returns></returns>
public static ROOTNET.Interface.NTH1 SaveToROOTDirectory(this ROOTNET.Interface.NTH1 hist, ROOTNET.Interface.NTDirectory dir)
{
hist.InternalWriteObject(dir);
return(null);
}
/// <summary>
/// Add a histogram to a ROOT directory.
/// </summary>
/// <param name="dir"></param>
/// <param name="h"></param>
public static void Add(this ROOTNET.Interface.NTDirectory dir, ROOTNET.Interface.NTH1 h)
{
h.SetDirectory(dir);
}
/// <summary>
/// Determine the maximum value for a plot, taking the size of the errors into account.
/// This isn't perfect, but does a slightly faster job than scanning everything. May have to fix eventually.
/// </summary>
/// <param name="p"></param>
/// <returns></returns>
private static double FindPlotMaximum(ROOTNET.Interface.NTH1 p)
{
var b = p.GetMaximumBin();
return p.GetBinContent(b) + p.GetBinError(b);
}