import functions

import os

import sys

import mysql_query

import string

from numpy import *

import pyfits

import matplotlib.pyplot as plt

###################

### Description ###

###################

### Plots the object RV vs BIS

### Points are taken from the HSMSO database

### usage: python plot_candidate_bis.py object_name [oname.pdf]

object_name = sys.argv[1]

query_entry = "select SPECbis, SPECrv, SPECrv_err from SPEC where SPECtype=\"RV\" and SPECobject=\"%s\" " % object_name

data = mysql_query.query_hsmso(query_entry)

data = array(data)

print data

plt.errorbar(data[:,1],data[:,0],xerr=data[:,2],linestyle="none",marker="o")

plt.xlabel("RV (km/s)")

plt.ylabel("BIS (km/s)")

plt.title(object_name+" BIS")

if len(sys.argv) == 3:

plt.savefig(sys.argv[2])

plt.show()