diff options
Diffstat (limited to 'src/statisticsFunctions/variance/svariancea.c')
-rw-r--r-- | src/statisticsFunctions/variance/svariancea.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/src/statisticsFunctions/variance/svariancea.c b/src/statisticsFunctions/variance/svariancea.c index d5c03205..426fc454 100644 --- a/src/statisticsFunctions/variance/svariancea.c +++ b/src/statisticsFunctions/variance/svariancea.c @@ -17,22 +17,18 @@ float svariancea(float *in, int size) int i = 0 ; float temp = 0 ; - float sumc = 0 ; float variance = 0; float mean = smeana ( in , size ); for ( i = 0 ; i < size ; i++) { - - temp += spows ( (in[i] - mean ) ,2.0f ) ; - sumc += (in[i] - mean); + temp += spows ( (in[i] - mean ) ,2 ) ; } - if ( fabs ( sumc) > 1e-08) - variance = (float) ( temp - spows( sumc,2.0f)/(float)size)/(float) ( size -1); - else - variance = (float) ( temp )/(float) ( size -1); + + variance = ( temp )/ (float)( size -1); + return variance ; } |