Arduino lookup table...best way to do this?

Projects Programming
3

I'm not sure if this is the best way, but the first thing that comes to mind is to take the value and in a for loop, compare it to the values in an array.
Something like this maybe:

float arrayValues[]={1.25, 2.3, 3.75, 4.22, 5.12};
float measuredValue = 0;
byte x=0;
float y=0;

void setup(){
//setup the motors
}
void loop(){
  measuredValue = analogRead(0);
  for(x=0;x<4;x++){
    y = measuredValue-arrayValues[x];
    if(abs(y)<1)
      break;
  }
  if (x=1){
    //motor A do something
    //motor B do something
  }
 if (x=2){
    //motor A do something
    //motor B do something
  }
   if (x=3){
    //motor A do something
    //motor B do something
  }
   if (x=4){
    //motor A do something
    //motor B do something
  }
}