hi! i want to log the data but don't know how to like i need motor encoder values their speeds and sensor value i know the command AddToDatalog() but this isn't working for my case, i m doing it like:
task main
{
int s=10,svalue;
for(int i=0;i<10;i++)
{
svalue=SensorValue[Sonarsensor];
motor[motorB]=s;
motor[motorC]=s;
s=-s;
AddToDatalog(svalue);
AddToDatalog(motorB);
AddToDatalog(motorC);
AddToDatalog(nMotorEncoder[motorB]);
AddToDatalog(nMotorEncoder[motorC]);
}
SaveNxtDatalog();
}
but this is returnig me some garbage values i think its not correct can someone help me as early as possible i need motorB value in first column & motorC in 2 column and similarly if i want to give a title to that column then how can ... Any1 plz !!

If you simply want to see the data, you're probably better off using an array to store values. If you do want to use the data log, you're doing most things right. Just one thing, you need to add motor[MotorB] to the datalog, not just MotorB.
What do you mean that it's giving you garbage values? What is the output? As for the title and columns, that type of formatting isn't supported in ROBOTC. For that type of functionality, I recommend that you look at Aswin's NXT2excel program: http://nxttime.wordpress.com/2010/01/20/nxt2excel/