#!/bin/bash
  
  # Copyright  2013  Daniel Povey
  # Apache 2.0.
  
  
  if [ $# -lt 1 ] || [ $# -gt 2 ]; then
    echo "usage: $0 trials-file [scores-file]"
    echo "e.g.: $0 data/sre08_trials/short2-short3-female.trials foo"
    exit 1;
  fi
  
  trials=$1
  
  [ ! -f $trials ] && echo "Expecting trials file $trials to exist"
  if [ $# -eq 2 ]; then
    scores=$2
    tempfile=
  else
    tempfile=$(mktemp)
    scores=$tempfile
    cat > $tempfile # put the standard input into tempfile.
  fi
  
  echo "Scoring against $trials"
  
  printf '% 12s' 'Condition:'
  for condition in $(seq 0 8); do
    printf '% 7d' $condition;
  done
  echo
  
  eers=()
  tot_eer=0.0
  printf '% 12s' 'EER:'
  for condition in $(seq 8); do
    eer=$(awk '{print $3}' $scores | paste - $trials | awk -v c=$condition '{n=4+c; if ($n == "Y") print $1, $4}' | compute-eer - 2>/dev/null)
    tot_eer=$(perl -e "print ($tot_eer+$eer);")
    eers[$condition]=$eer
  done
  
  eers[0]=$(perl -e "print ($tot_eer/8.0);")
  
  for i in $(seq 0 8); do
    printf '% 7.2f' ${eers[$i]}
  done
  echo
  
  
  rm $tempfile 2>/dev/null
  exit 0;