update function declares outlying observatoins based on the QQ plot. k_s is used to set the upper cut-off bound.## S3 method for class 'OutlierDC':
update(object, k_s = NA, LB = NA)OutlierDC .update for the S4 class OutlierDC. Cut-off bounds are added to find outliers on the normal QQ plot.odc and OutlierDC class