diff options
Diffstat (limited to 'storperf/utilities/math.py')
| -rw-r--r-- | storperf/utilities/math.py | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/storperf/utilities/math.py b/storperf/utilities/math.py index a11ec19..4ddddca 100644 --- a/storperf/utilities/math.py +++ b/storperf/utilities/math.py @@ -52,8 +52,11 @@ def slope(data_series): sum_yi_xi += xi * yi sum_yi += yi - beta2 = (sum_yi * sum_xi - m * sum_yi_xi) / \ - (sum_xi**2 - m * sum_xi_sq) # The slope + over = (sum_xi**2 - m * sum_xi_sq) + if over == 0: + beta2 = None # Infinite slope + else: + beta2 = (sum_yi * sum_xi - m * sum_yi_xi) / over # The slope # beta1 = (sum_yi_xi - beta2*sum_xi_sq)/sum_xi #The y-intercept if # needed |