multiple analog inputs to produce individual averages for each channel - arrays

Question

I am trying to put four analog inputs into individual channels that contain an array. Once that happens I am trying to get an average of each channel's array getting a single int or float. Lastly, I want to compare the averages in an if statement to get a serial print and divide the compared averages.
I am just confused on what in the code I pieced together is necessary.
Thank you for any advice or help.
Here is my code below
#include <Servo.h>
float sVal0 = 0.0;
float sVal1 = 0.0;
float sVal2 = 0.0;
float sVal3 = 0.0;
float sVal02 = 0.0;
float sVal13 = 0.0;
const int numReadings = 10; //# of readings needed to average
const int numChannels = 4; // 4 analog outputs
int readings[numChannels][numReadings]; // the readings from the analog input
int index; // the index of the current reading
void setup () {
Serial.begin(9600);
}
void loop () {
sVal0 = analogRead(A0);
sVal1 = analogRead(A1);
sVal2 = analogRead(A2);
sVal3 = analogRead(A3);
for (int chan = 0; chan <= numChannels; ++chan ){
Serial.println(sVal0[chan]); // serial print each array
Serial.println(sVal1[chan]);
Serial.println(sVal2[chan]);
Serial.println(sVal3[chan]);
for (int thisReading = 0; thisReading < numReadings; thisReading++) {
readings[thisReading] = 0;
index = index + 1;
}
if (index >= numReadings) {
index = 0;
sVal0_avg = sVal0[chan]/numReadings; // get average
sVal1_avg = sVal0[chan]/numReadings;
sVal2_avg = sVal0[chan]/numReadings;
sVal3_avg = sVal0[chan]/numReadings;
}
}
if (sVal1_avg > sVal3_avg) {
Serial.print("1 avg: );
Serial.println(sVal1_avg);
sVal31 = sVal3_avg / sVal1_avg;
Serial.print("comparison : ");
Serial.println(sVal31);
}
}