1.1 --- a/optimiser.py	Fri Oct 09 12:04:16 2015 +0200
     1.2 +++ b/optimiser.py	Fri Oct 09 14:20:02 2015 +0200
     1.3 @@ -277,7 +277,7 @@
     1.4  def get_float(options, flag):
     1.5      try:
     1.6          i = options.index(flag)
     1.7 -        if options[i+1].isdigit():
     1.8 +        if i+1 < len(options) and options[i+1].isdigit():
     1.9              return float(options[i+1])
    1.10          else:
    1.11              return 1.0