[mosdojaf]

I can find highest and lowest values, and calculate the array average. Now I need to replace the highest and lowest value with the average. I am wondering what would be the correct direction to go to assign this value.

#include <iostream>

using namespace std;

int main()
{
// variables and array size

  const int SIZE =10;
  int array[SIZE];
  int outlierBig;
  int outlierSmall;
  double averageReadout;

  for (int i = 0; i< SIZE;i++){ // simulate sensor data stored in an array


        array [i] =i;

  }

   outlierSmall =outlierBig = array[0];

   //remove bigest/smallest value from array
   for (int i = 1; i <SIZE; i++){


   if (array[i] > outlierBig)
   outlierBig = array[i];

   if (array[i] < outlierSmall)
   outlierSmall = array[i];

   }

   //calculate average
    for (int i = 1; i <SIZE; i++){
   averageReadout +=array[i];
    averageReadout = (averageReadout-outlierBig-outlierSmall)/(SIZE-2);


  
    return 0;
}
}

thank you for looking

[Hezekiah]

Instead of storing the values of the highest and lowest elements, store their indices, so you can modify them after the loop.

You also never initialize averageReadout, so it has an undefined value. When you calculate the average, you have to start at index 0.

[buffalobill]

You don't need to remove biggest or smallest from the array.
When you iterate through the array include a statement like:

if(array[i]==biggest || array[i]== smallest)array[i]==average;

[jjl]

Calculate the average before hand. Loop through the array and find the indices for max and min elements and set those elements to the average.

[mosdojaf]

Thanks i should have time this weekend to work on my home project some more. I will repost with what I come up with.

[CTphpnwb]

Since calculating the average requires iterating through the array I'd find the high and low indices in the same loop.

[mosdojaf]

I do need to remove min and max before average. I am treating the min and max as sensor errors. From using the after market sensors for lego mindstorms their are jumps and dips in the data they return. I am trying to componsate for this.

[CTphpnwb]

You can loop through the entire array and get a sum along with the highest and lowest indices. Then all you need to do is subtract the highest and lowest values from the sum before calculating the average. Still no need for more than one loop!

Oh, and don't forget to set the highest and lowest to the average after the loop!