 |
Astrophysics Source Code Library
Archive Page: know991001 |
| Archive
| New
| Search
| Submit
| Links
| About ASCL.net |
RADPACK: A RADical compression analysis PACKage for fitting to the CMB
Lloyd Knox
University of Chicago
Abstract:
The RADPACK package contains both data and software.
The data are the constraints on the cosmic microwave
background (CMB) angular power spectrum from all
published data as of 9/99. A unique aspect of this
compilation is that the non-Gaussianity of the uncertainties
has been characterized. The most important
program in the package, written in the IDL language,
is called chisq.pro and calculates $\chi^2$, for
an input power spectrum, according to the offset
log-normal form of Bond, Jaffe and Knox (astro-ph/9808264).
chisq.pro also outputs files that are useful for
examining the residuals (the difference between
the predictions of the model and the data).
There is an sm macro for plotting up the residuals,
and a histogram of the residuals. The histogram
is actually for the 'whitenend' residuals ---a linear
combination of the residuals which leaves them
uncorrelated and with unit variance.
The expectation is that the whitened residuals will
be distributed as a Gaussian with unit variance.
Subject headings: cosmic microwave background -- cosmology: theory -- methods: statistical
Latest Version: 1999 October 1
Archived: 1999 October 1
Paper:
Dodelson, S. & Knox, L., 1999, PRL, submitted
Preprints:
astro-ph/9808264,
astro-ph/9909454
Language:
IDL
External Explanatory Page:
http://flight.uchicago.edu/knox/radpack.html
Source Codes:
radpack.tar.gz