#!/usr/bin/env python
#Show that cbtransfer works as expected with an example dataset
import sys
import os
from camb_utils import cambio
from camb_utils import example_data
import numpy as np
import matplotlib.pyplot as plt
# example_data = os.path.join(os.path.split(camb_utils.__file__)[0], 'example_data/')
fname=os.path.join(example_data, 'oneh_transfer_out.dat')
t = cambio.loadtransfers(filename = fname )
transfertuples = cambio.__preparetransfersforcombination(t,[1,2])
#c = cambio.__combinetransfers(transfertuples, f = [0.24 ,0.04])
c = cambio.cbtransfer(fname , 0.24, 0.04)
plt.plot(t[:,0], (0.24* t[:,1] + 0.04 * t[:,2])/0.28, label ="by hand")
plt.plot(c[0], c[1], label =" combine")
print np.shape(c[0])
print np.shape(c[1])
plt.yscale('log')
plt.xscale('log')
plt.legend(loc= "best")
plt.show()
from interfaces import FCPL import massfunctions as mf import plotutils as pu import sys # INPUT FILES dirn = "interfacecosmology/" tkfile = dirn +"example_data/M000/m000n0_transfer_fin_out.dat" pkfile = dirn + "example_data/M000/m000n0_matterpower_fin.dat" #psrunfile = "/home/rbiswas/doc/CAMB_outs/m000r03/m000r03_matterpower_fin.dat" M000 = FCPL(H0 = 71. ,Om0 = 0.2647, Ob0 = 0., ns = 0.963, As = 2.16e-9) M000s = FCPL(H0 = 71. ,Om0 = 0.2647, Ob0 = 0., ns = 0.963, sigma8 = 0.8) M000p = FCPL(H0 = 71. ,Om0 = 0.3647, Ob0 = 0.0, ns = 0.963, As = 2.16e-9) Tks = cio.loadtransfers(filename = tkfile) k = Tks[:,0] Tk = Tks[:,-1] sumanrhoc = 2.77536627e11 sumannorm = fs.Pk_norm(sigma8 = 0.8, ns = 0.963, k = k , Tk=Tk, hubble= 0.71) #working power spectrum example psfrompk = psu.powerspectrum(koverh = None, asciifile =pkfile) #working transfer function example psfromtk = psu.powerspectrum(koverh = None, pstype ="cb", asciifile =tkfile, cosmo = M000) psfromtkm = psu.powerspectrum(koverh = None, pstype ="matter", asciifile =tkfile, cosmo = M000) psfromtkms = psu.powerspectrum(koverh = None, pstype ="matter", asciifile =tkfile, cosmo = M000s) psfromtkcbs = psu.powerspectrum(koverh = None, pstype ="cb", asciifile =tkfile, cosmo = M000s) psfromtkcbscb = psu.powerspectrum(koverh = None, pstype ="cb",sigma8ype= "cb", asciifile =tkfile, cosmo = M000s) #psfromtkcbscb = psu.powerspectrum(koverh = None, pstype ="cb", asciifile =tkfile, cosmo = M000s) #print len(psfromtk), "now"
def powerspectrumfromfile(fname,
koverh = None ,
pstype = "matter" ,
h = 0.71 ,
ns = 0.963 ,
As = 2.1e-9 ,
Omegacdm = None ,
Omegab = None ):
"""
****************************************
DEPRECATED: USE cambio functions instead
*****************************************
returns a tuple of koverh values and the interpolated power
spectra at these values of hoverh using a CAMB output which
may be a power spectrum output or transfer function output.
If the output is a transfer function output, then ns, h,
and As must be supplied
args:
returns:
tuple of (koverh, ps values)
"""
#decide if file is transfer function or Power spectrum output
psfile = False
tffile = False
Unknown = True
tmpfile = np.loadtxt(fname)
shapetuple = np.shape(tmpfile)
if shapetuple[-1] == 7:
tffile = True
Unknown = False
if shapetuple[-1] ==2 :
psfile = True
Unknown = False
if koverh == None:
koverh = tmpfile[:,0]
if Unknown:
#file is not CAMB transfer function or power spectrum output
raise ValueError("Unknown filename supplied")
if psfile :
if pstype != "matter" :
raise ValueError ("Cannot obtain non-matter power spectrum from CAMB power spectrum file")
return (koverh , powerspectrum(koverh, fname ) )
if tffile :
if pstype == "matter" :
transfer = cio.loadtransfers(rootname = None,
filename = fname)
ps = cio.matterpowerfromtransfersforsinglespecies( koverh ,
transfer ,
h ,
As ,
ns )
return (ps [:,0], ps[:,1])
elif pstype == "cb" :
#LOST CODE HERE
return 0
def __powerspectrum ( koverh ,
asciifile = None ,
pstype = "matter",
method = "CAMBoutfile",
z = 0.0 ,
cosmo = None ,
**params):
"""
DO NOT CALL DIRECTLY. CALL powerspectrum instead
returns linearly interpolated values of the powerspectrum in the
powerspectrumfile with k values in units of h/Mpc. Using
this with koverh = None, returns the values in the table.
args:
koverh : array-like of floats or Nonetype, mandatory
k in units of h/Mpc
asciifile: string,
Filename for power spectrum or CAMB transfer function.
power sepctrum or transfer function input will be
recognized from CAMB file structure.
method : string, optional , defaults to "CAMBoutfile"
Method of obtaining power spectrum with fixed options
options:
-------
CAMBoutfile :assume that the asciifile output of CAMB
is at desired redshift
CAMBoutgrowth :Use the asciifile from CAMB output at
z = 0.0 , and use a growth function to find
the power spectrum at z = z
returns:
tuple (koverh , power spectrum)
notes: should be able to obtain the powerspectrum in a variety of
methods with code being added
"""
#ensure we are supposed to read CAMB outfiles
if not method in ["CAMBoutfile","CAMBoutgrowth"]:
raise ValueError("Method not defined")
# # Decide whether this ia a matter or transfer file
#This has been made a function
# psfile = False
# tkfile = False
# Unknown = True
#
# shapetuple = np.shape(tmpfile)
# if shapetuple[-1] == 7:
# tkfile = True
# Unknown = False
# if shapetuple[-1] ==2 :
# psfile = True
# Unknown = False
psfile, tkfile, Unknown = cambasciifiletype ( asciifile )
tmpfile = np.loadtxt(asciifile)
if koverh == None:
koverh = tmpfile[:,0]
if Unknown:
#file is not CAMB transfer function or power spectrum output
raise ValueError("Unknown filename supplied")
if psfile:
pk = cio.loadpowerspectrum(asciifile)
if not np.all(np.diff(pk[:,0])>0.):
raise ValueError("The k values in the power spectrum file are not in ascending order")
if koverh == None :
return (pk[:,0], pk[:,1])
return koverh, np.interp( koverh, pk[:,0],pk[:,1],left = np.nan, right = np.nan)
if tkfile:
#print "AS " , params["As"]
#print cosmo.Ob0, cosmo.Oc0
if pstype == "cb":
#print "filename ", asciifile
pk = cio.cbpowerspectrum ( transferfile = asciifile ,
Omegacdm = cosmo.Oc0,
Omegab = cosmo.Ob0,
h = cosmo.h,
Omeganu = cosmo.On0,
As = params["As"],
#As = cosmo.As,
ns = cosmo.ns,
koverh = None )
return (pk [:,0], pk[:,1])
if pstype == "cbmatter":
Omegam = cosmo.Om0
Omegacb = cosmo.Ob0 + cosmo.Oc0
ratiosq = (Omegacb/Omegam)**2.0
#print "filename ", asciifile
pk = cio.cbpowerspectrum ( transferfile = asciifile ,
Omegacdm = cosmo.Oc0,
Omegab = cosmo.Ob0,
h = cosmo.h,
Omeganu = cosmo.On0,
As = params["As"],
#As = cosmo.As,
ns = cosmo.ns,
koverh = None )
return (pk [:,0], pk[:,1]*ratiosq)
if pstype == "matter" :
if koverh == None :
koverh = tmpfile[:,0]
transfer = cio.loadtransfers( filename = asciifile)
transfertuple = (transfer[:,0], transfer[:,-1])
ps = cio.matterpowerfromtransfersforsinglespecies(
koverh ,
transfer = transfertuple,
h = cosmo.h ,
As = params["As"],
ns = cosmo.ns)
return (ps [:,0], ps[:,1])
return koverh, pk
unittype = "solarmassperMpc3", cosmo = cosmo)
dndlnM = rhobg *f_sigma *dlsinvdlM /M
#dndlnM = dlsinvdlM *f_sigma/M * rhobg
#critdensity(h = cosmo.h, unittype = "solarmassperMpc3")*cosmo.Om0
return dndlnM
if __name__=="__main__":
import numpy as np
import matplotlib.pyplot as plt
import camb_utils.cambio as cio
import sys
#pk = cio.loadpowerspectrum ("example_data/LCDM_def_matterpower.dat")
pk = cio.loadpowerspectrum ("LCDM_matterpower.dat")
ts = cio.loadtransfers(filename = "example_data/LCDM_def_transfer_out.dat")
#print np.shape(ts)
#print pk[:,0]
pkt = cio.matterpowerfromtransfersforsinglespecies(koverh = pk[:,0],
transfer = (ts[:,0],ts[:,-1]), h = 0.71, As = 2.1e-9, ns = 0.963)
plt.loglog ( pk[:,0], pk[:,1])
plt.loglog ( pkt[:,0], pkt[:,1])
plt.figure()
from astropy.cosmology import Planck13 as cosmo
#print sigma(ps = (pk[:,0],pk[:,1]) , R = 8.0, cosmo = cosmo)
#plt.show()
sys.exit()
M = 10.**(np.arange(7,16,0.2))
R = np.arange(0.0005, 50.0,0.1)
