Hello, I am trying to find out how to write a program which will take the average over the day. I dont want it to just take the average over the last 24 hours, I know how to do that, rather I want to find the average from 12 midnight to 12 midnight the next day, and to have this average displayed throughout the day and changing as the day progresses. This is to be written in C code
I'm sorry, in my example the variable
signed int Avg_1; // previous value of running average
void InitAvgCalc(signed char init_value, unsigned int sample_count) { reset_time = 0; // reset time init Rem = 0; // remainder init Avg = init_value; // "AVG(i-1)" init current_minus_N = &Ring_Buffer[0]; // pointer to (current-N) sample memset(&Ring_Buffer[0],init_value,sample_count); // fills ring buffer } // with initial value void CalculateAverageValue(void) // running average calculation { signed int sample = GetCurrentSample(); // x(i) signed int diff; diff = sample - *current_minus_N + Rem; // [x(i)-x(i-N)] corr. (remainder) *current_minus_N = sample; // saves x(i-N) Avg = Avg + diff / SAMPLE_COUNT; // calculation itself Rem = diff % SAMPLE_COUNT; if (++current_minus_N == &Ring_Buffer[SAMPLE_COUNT]) { current_minus_N = &Ring_Buffer[0]; // pointer correction } // @ the end of ring buffer }