root.density {xps} | R Documentation

## ROOT Density Plot

### Description

Creates a ROOT density plot for one or all ROOT tree(s).

### Usage

    root.density(x, treename = "*", logbase = "log2", canvasname = "DensityPlot", save.as = "", w = 540, h = 540)

### Arguments

`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.
`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 density plot for one or all tree(s) 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.

### Note

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”.

### Author(s)

Christian Stratowa

### See Also

`root.hist1D`

### 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.density(data.test3, "*")
    root.density(data.test3, "TestA1.cel")
    root.density(data.test3, "TestA1.cel", save.as="png")
    ## End(Not run)

[Package xps version 1.4.10 Index]