TCI

README.md

@@ -131,7 +131,7 @@ The probability for an account to recive income on a given step, and the mean an
 
 ##### mean_outcome, std_outcome, mean_outcome_sar, std_outcome_sar
 The mean and standard deviation of the truncated normal distribution used to sample the amount of the outcome. Mean and std are specifed for normal and SAR transactions. The probability of an outcome in step $i$ calculated form a sigmoid function: $p_i = 1 / (1 + e^{-x_i})$ where 
-$$x_i = \left( \frac{1}{N}\sum_{j=i-N}^{i} b_j - b_i \right) \text{\huge/} \frac{1}{N}\sum_{j=i-N}^{i} b_j$$
+$$x_i = \left( b_i - \frac{1}{N}\sum_{j=i-N}^{i} b_j  \right) \text{\huge/} \frac{1}{N}\sum_{j=i-N}^{i} b_j$$
 and $b_i$ is the balance of the account in step $i$ and $N$ is the number of steps in the past to consider.
 
 # Transaction Network Explorer