Last update:
Apr 1, 2000
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A Comparison of Data Analysis Packages
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Irwin Gaines,
Jeff Kallenbach
Fermilab
Speaker:
Irwin Gaines
A modern data analysis package for HEP may offer many advanced features,
such as sophisticated graphical user interfaces, specialized data formats
and data access methods, and compatability with object oriented user code
and data structures.
But in any case the package must offer the standard features provided for
many years by PAW including efficient data access to high energy physics
data formats, data analysis using scripts and high level language user
routines, mathematical manipulation of data quantities, preservation of
analysis sessions for later use, and data presentation with both interactive and publication
quality graphics.
We describe here an evaluation and comparison of several new generation
data analysis packages, concentrating on ROOT (a HEP developed product)
and IDL (a commercial product). We report on a set of user requirements
developed in collaboration with the FNAL Run II collider experiments (CDF
and D0). We then discuss both how well the candidate products can
perform the traditional functions and the range of more advanced
features offered, looking in particular at options for organizing high energy physics data in
optimized file formats for efficient data analysis, analyzing extremely large (multi GigaByte) data
samples, using the inherent object structure of user data, and using the web and other modern tools
for data presentation.
Presentation:  |
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