hi
you have to write it yourself...!
If you are reading one sensor, as in:
pin0Data = analogRead(0);
and you want more, just write them in:
pin0Data = analogRead(0);
pin1Data = analogRead(1);
pin2Data = analogRead(2);
Then, if you want to send them to processing, just add them to the data being sent out the serial port.
Serial.println(pin0Data);
Serial.println(pin1Data);
Serial.println(pin2Data);
Daniel