distance.LCDM
(Package: lira) :
Angular diameter distance in a LCDM universe
Angular diameter distance in a LCDM (Cold Dark Matter universe with a cosmological constant) universe between an observer at 'zd' and a source at 'zs'. The distance is in units of the Hubble distance c/H0, where 'c' is the speed of light and 'H0' is the Hubble constant.
lira
(Package: lira) :
LInear Regression in Astronomy
Performs Bayesian linear regression analysis optimized for astronomy. The method accounts for heteroscedastic and correlated errors in both the independent and the dependent variables, intrinsic scatters (in both variables), time evolution of normalization, slope and scatter, Malmquist and Eddington bias, and break of linearity ('knee'). The posterior distribution of the parameters is sampled with a JAGS (Just Another Gibbs Sampler) powered Gibbs sampler.
providing 
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