/
readfile.py
47 lines (32 loc) · 1.15 KB
/
readfile.py
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#!/usr/bin/env python
"""
Reading in and manipulating ascii files
"""
# Load in module needed to read in ascii files
import numpy as np
import pandas as pd
#------------------------------------------------------------------------
def readspec(infile):
# Read in first spectrum
df = pd.read_csv('Spectra/%s' % infile,sep=' ')
wave = df['Wavelength_Angs'].values
flux = df['Flux(erg/s/cm2/A)'].values
specdata = np.array([wave,flux])
return specdata
#------------------------------------------------------------------------
def readLC(infile):
# Read in first spectrum
df = pd.read_csv('Cepheids/Lightcurves/%s' % infile,sep=' ')
mjd = df['MJD'].values
mag = df['Vmag'].values
mag_err = df['mag_err'].values
return mjd-2452978,mag
#------------------------------------------------------------------------
def readdata(infile):
# Read in first spectrum
df = pd.read_csv('Expansion/%s' % infile)
Do = df["Distance o (Mpc)"].values
Dz = df["Distance z (Mpc)"].values
vel_LG = df["Velocity LG (km/s)"].values
vel_virgo = df["Velocity Virgo (km/s)"].values
return Do,vel_virgo