Rob, I found the problem , I had not deleted the .o file and restarted the IDE after changing the .h file.

compiles OK now.

Thanks for your help.

Rock.

Rob, Thanks for that, the compiler gets past that, but now comes up with another problem,  error : request for member 'clr' in 'myRA', which is of non-class type 'RunningAverage ()()'.
This occurs also for member 'add' and 'avg' when I comment out the other problem lines.

I know zip about C++ so I'm at a loss .

Thanks Rock.

Here is an easier way, look up toCharArray
zhrs is the input string , [] is the array size (number of characters in string +1)
dhrs is the int output.

   char tarray[3];
   zhrs.toCharArray(tarray, sizeof(tarray));
   dhrs = atoi(tarray); 


Rock

Rob, Just tried to get your example to go but comes up with a compile error.

\libraries\RunningAverage\RunningAverage.cpp:26: error: definition of implicitly-declared 'RunningAverage::~RunningAverage()'

Any help appreciated .

Thanks Rock.

Hey, Dale, the skeleton lib link on the LCDAPI page does not work.

Thanks Rock.