fill

This is a Python script that utilizes the ROOT library to draw histograms from data in a file. It supports 1D and 2D histograms, and provides options to customize binning, axis ranges, and data delimiters.

Requirements

• Python 3.x
• ROOT library for Python

Usage

python3 -i fill [options] data_file

Positional arguments

data_file: Path to the input data file.

Optional arguments

• -x, --xcol: Target column number for the x-axis (default: 0).
• --xbins: Number of bins for the x-axis (default: 100).
• --xmin: Minimum value for the x-axis (must be a string expression).
• --xmax: Maximum value for the x-axis (must be a string expression).
• -y, --ycol: Target column number for the y-axis.
• --ybins: Number of bins for the y-axis (default: 100).
• --ymin: Minimum value for the y-axis (must be a string expression).
• --ymax: Maximum value for the y-axis (must be a string expression).
• --dlm: Data delimiter used in the data file (default: None).
• --cmt: Comment delimiter used in the data file (default: "#").

Examples

Plot a 1D histogram using all values in a file:

python3 -i fill data.txt

Plot a 1D histogram using values from a specific column:

python3 -i fill --xcol 2 data.txt

Plot a 2D histogram using values from two specific columns:

python3 -i fill --xcol 1 --ycol 2 data.txt

Customize binning and axis range:

python3 -i fill --xcol 1 --xbins 50 --xmin "0" --xmax "100" data.txt

Specify data delimiter and comment delimiter:

python3 -i fill --xcol 1 --dlm "," --cmt "#" data.txt

Notes

• The script assumes that the data file is formatted with columns separated by the specified delimiter, and comments are denoted by the specified comment delimiter.
• The input file can contain any number of rows, but the data must be properly formatted to be read by the script.
• The script will generate a canvas with the histogram and wait for a Ctrl-C input on the canvas to exit.

Author

yoshphys

Licence

fill is under MIT license. See the LICENSE for more info.