Updated with Statistics Library
Dependencies: QEI2 chair_BNO055 PID Watchdog VL53L1X_Filter ros_lib_kinetic
Statistics/statistics.cpp@28:e01253eb6c6f, 2019-06-28 (annotated)
- Committer:
- t1jain
- Date:
- Fri Jun 28 23:52:23 2019 +0000
- Revision:
- 28:e01253eb6c6f
- Parent:
- 27:da718b990837
Updated with Statistics Library
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
jvfausto | 27:da718b990837 | 1 | #include "statistics.h" |
jvfausto | 27:da718b990837 | 2 | #include "mbed.h" |
jvfausto | 27:da718b990837 | 3 | |
t1jain | 28:e01253eb6c6f | 4 | statistics::statistics(int* Input, int dataLengthIn, int firstDataPointIn){ |
jvfausto | 27:da718b990837 | 5 | data = Input; |
jvfausto | 27:da718b990837 | 6 | dataLength = dataLengthIn; |
t1jain | 28:e01253eb6c6f | 7 | firstDataPoint = firstDataPointIn; |
jvfausto | 27:da718b990837 | 8 | } |
jvfausto | 27:da718b990837 | 9 | double statistics::mean(){ |
jvfausto | 27:da718b990837 | 10 | double sum; |
t1jain | 28:e01253eb6c6f | 11 | for(int i = firstDataPoint; i < (firstDataPoint + dataLength); ++i) |
jvfausto | 27:da718b990837 | 12 | { |
jvfausto | 27:da718b990837 | 13 | sum += data[i]; |
jvfausto | 27:da718b990837 | 14 | } |
jvfausto | 27:da718b990837 | 15 | |
jvfausto | 27:da718b990837 | 16 | double average = sum/dataLength; |
jvfausto | 27:da718b990837 | 17 | return average; |
jvfausto | 27:da718b990837 | 18 | } |
jvfausto | 27:da718b990837 | 19 | double statistics::stdev(){ |
t1jain | 28:e01253eb6c6f | 20 | double sum = 0.0, mean, standardDeviation = 0.0; |
t1jain | 28:e01253eb6c6f | 21 | printf("The length of the array is %d\n", dataLength); |
t1jain | 28:e01253eb6c6f | 22 | //double num = (pow(2.0,2.0)); |
t1jain | 28:e01253eb6c6f | 23 | //printf("2^2 is %f\n", num); |
t1jain | 28:e01253eb6c6f | 24 | //int i; |
jvfausto | 27:da718b990837 | 25 | |
t1jain | 28:e01253eb6c6f | 26 | for(int i = firstDataPoint; i < (firstDataPoint + dataLength); ++i) |
jvfausto | 27:da718b990837 | 27 | { |
jvfausto | 27:da718b990837 | 28 | sum += data[i]; |
t1jain | 28:e01253eb6c6f | 29 | printf("%d\n", data[i]); |
jvfausto | 27:da718b990837 | 30 | } |
jvfausto | 27:da718b990837 | 31 | |
jvfausto | 27:da718b990837 | 32 | mean = sum/dataLength; |
jvfausto | 27:da718b990837 | 33 | |
t1jain | 28:e01253eb6c6f | 34 | for(int i = firstDataPoint; i < (firstDataPoint + dataLength); ++i) { |
t1jain | 28:e01253eb6c6f | 35 | //standardDeviation += pow(data[i] - mean, 2); |
t1jain | 28:e01253eb6c6f | 36 | standardDeviation += (data[i] - mean)*(data[i] - mean); |
t1jain | 28:e01253eb6c6f | 37 | } |
jvfausto | 27:da718b990837 | 38 | |
jvfausto | 27:da718b990837 | 39 | return sqrt(standardDeviation / dataLength); |
jvfausto | 27:da718b990837 | 40 | } |