Fix recommended layout

README.txt

@@ -6,6 +6,7 @@ Prerequisites:
 
   # Runtime and build environments
   sudo apt-get install python2.7 python2.7-dev python-setuptools
+  sudo apt-get install python-numpy python-scipy python-matplotlib
 
   nilmdb (1.3.1+)
 

src/sinefit.py

@@ -23,7 +23,7 @@ def main(argv = None):
     try:
         args = f.parse_args(argv)
     except nilmtools.filter.MissingDestination as e:
-        rec = "float32_4"
+        rec = "float32_3"
         print "Source is %s (%s)" % (e.src.path, e.src.layout)
         print "Destination %s doesn't exist" % (e.dest.path)
         print "You could make it with a command like:"