Analog input readings

[TurnerRussell50]

Customer states via forums: **It appears that there is a setting for reading analog voltages missing or needs to be added.

Trying to read 0 to 3 volts on an analog input pin. Anything over a few hundred mV over ranges the readings. I've seen code that attempts to fix this but I can't get it to work.

The added line I have seen is:

analogReference(AR_VDD4);**

https://forum.sparkfun.com/viewtopic.php?f=182&t=55650&p=225574#p225574