xps (version 1.32.0)

root.hist3D: ROOT 3D-Histogram

Description

Creates a ROOT 3D-histogram for a ROOT tree.

Usage

root.hist3D(x, treename1 = character(0), treename2 = character(0), treename3 = character(0), logbase = "log2", option = "HIST", canvasname = "Histogram3D", save.as = "", w = 540, h = 540)

Arguments

x

object of class DataTreeSet or ExprTreeSet.

treename1

name of first tree, must be present in rootfile of object x.

treename2

name of second tree, must be present in rootfile of object x.

treename3

name of third tree, must be present in rootfile of object x.

logbase

usually “log2”, or “0”, determines if leaf data should be converted to log.

option

ROOT hist TH3 option, usually one of “HIST”, “SCAT”, “BOX”.

canvasname

name of ROOT canvas

save.as

graphics type for saving canvas, one of “ps”, “eps”, “pdf”, “jpg”, “gif”, “png”, “tiff”

w

the width of the canvas in pixels.

h

the height of the canvas in pixels.

Details

Creates a ROOT 3D-histogram for trees treename1, treename2 and treename3 present in rootfile. By selecting menu “File->Save->canvasname.xxx” you can save the figure as e.g. *gif, *.jpg, *.pdf, *.ps or even as C++ macro.

By moving the mouse into the middle of the canvas, the cursor changes and you can rotate the 3D-histogram. By selecting menu “View->View With->OpenGL” the OpenGL viewer opens, where you can rotate the 3D-histogram interactively.

Alternatively, you can save the plot by setting save.as. However, this will close the canvas immediately after opening it.

See Also

root.hist1D, root.hist2D

Examples

## Not run: 
# ## first, load ROOT scheme file and ROOT data file
# scheme.test3 <- root.scheme(paste(path.package("xps"),"schemes/SchemeTest3.root",sep="/"))
# data.test3 <- root.data(scheme.test3, paste(path.package("xps"),"rootdata/DataTest3_cel.root",sep="/"))
# 
# root.hist3D(data.test3, "TestA1.cel", "TestB2.cel", "TestB1.cel", option="BOX")
# ## End(Not run)