root.hist1D {xps} | R Documentation |
Creates a ROOT 1D-histogram for a ROOT tree.
root.hist1D(x, treename = character(0), logbase = "log2", type = "hist", option = "HIST", canvasname = "Histogram1D", save.as = "", w = 540, h = 540)
x |
object of class DataTreeSet or ExprTreeSet . |
treename |
name of tree, must be present in rootfile of object x . |
logbase |
usually “log2”, or “0”, determines if leaf data should be converted to log. |
type |
ROOT 1D-hist or density, i.e. “hist” or “density”. |
option |
ROOT 1D-hist option only, usually one of “HIST”, “B”, “C”, “E”. |
canvasname |
name of ROOT canvas |
save.as |
gaphics tye 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. |
Creates a ROOT 1D-histogram for tree treename
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.
Alternatively, you can save the plot by setting save.as
. However, this will close the
canvas immediately after opening it.
Always select menu item “Quit ROOT” from menu “File” to close the ROOT canvas,
otherwise you are in the CINT C/C++ interpreter from ROOT
. To exit CINT,
you need to type “.q”.
Christian Stratowa
## 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.hist1D(data.test3, "TestA1.cel") root.hist1D(data.test3, "TestA1.cel", type="density") ## End(Not run)