schechter.bin: Calculate Schechter Function Binned Variables

In astro: Astronomy Functions, Tools and Routines

Description

This function calculates a Schechter function fit to a set of input data.

Usage

schechter.bin(data, vmax = NA, range = range(data), lim1 = NA, 
              lim2 = NA, numlim = 1, volume = max(vmax), bw = 0.1, 
              null = 1E-9)

Arguments

data	input data vector
vmax	vector of maximum comoving volumes within which object could lie
range	data range of interest
lim1	lower data limit for fitting
lim2	upper data limit for fitting
numlim	lower number (per bin) limit for fitting
volume	total volume across which the data has been collected (default 1 if vmax = NA)
bw	bin width sizes
null	value of null

Value

bins	bin boundaries
binmid	bin midpoints
binlo	bin lower boundaries
binhi	bin upper boundaries
num	number per bin (note: if using vmax values, these are weights)
den	density per bin
err	error per bin
errlo	lower error limit
errhi	upper error limit
fitbinmid	bin midpoints after data limits applied
fitbinlo	bin lower boundaries after data limits applied
fitbinhi	bin upper boundaries after data limits applied
fitnum	number per bin after data limits applied (note: if using vmax values, these are weights)
fitden	density per bin after data limits applied
fiterr	error per bin after data limits applied
fiterrlo	lower error limit after data limits applied
fiterrhi	upper error limit after data limits applied

Author(s)

Lee Kelvin <[e-mail]>

References

Blanton M. R., Lupton R. H., Schlegel D. J., Strauss M. A., Brinkmann J., Fukugita M., Loveday J., 2005, ApJ, 631, 208

Driver S. P., Popescu C. C., Tuffs R. J., Graham A. W., Liske J., Baldry I., 2008, ApJ, 678, L101

Baldry I. K. Driver S. P., Loveday J., et al., 2012, MNRAS, 421, 621

See Also

The astronomy package: astro.

astro documentation built on May 2, 2019, 2:14 a.m.