Document ID: chunk:federal_register_of_legislation:F2015L00345:reg:58:p1
Version: federal_register_of_legislation:F2015L00345
Segment Type: reg
Provision Reference: reg 58 (pt 1/2)
Character Range: 75937–78525

58  Regression analysis
 (1) The estimated effect, on average daily emissions of greenhouse gas at a site in a population in the project in a measurement period in the reporting period, of targeting treatment to the site in the measurement period is worked out using a linear regression model (regression equation 1):
where:
DEM,s means the mean daily emissions of greenhouse gas at the site in the measurement period, in tonnes CO2‑e per day, worked out using equation 15.
 means the intercept for the regression model.
Note: This is the value that mean daily consumption of energy would have at a site for which all independent variables have the value of zero.
 means the coefficient for Ts.
Note: This is the amount by which mean daily emissions of greenhouse gas are different at a site in the treatment group compared to a site that is not in the treatment group, all other things being equal.
Ts means the independent variable that captures whether the site is in the treatment group, which has:
 (a) if the site is in the treatment group in the population—a value of 1; and
 (b) if the site is in the control group in the population—a value of 0.
 means the coefficient for DEP,s.
DEP,s means the independent variable that captures the mean daily emissions of greenhouse gas at the site in the relevant pre‑treatment period, in tonnes CO2‑e per day, worked out using equation 16.
t means the coefficient for Ws,t for a time period in the measurement period.
Ws,t means independent variables, each of which:
 (a) indicates whether there is data about measured energy consumption, that is used for the purposes of this Part, at the site for a time period in the measurement period; and
 (b) has:
 (i) if there is data for the site in the time period that is used for the purposes of this Part—a value of 1; and
 (ii) if there is not data for the site in the time period that is used for the purposes of this Part—a value of 0.
k means the coefficient for the kth OtherVariable.
OtherVariabless,k means one or more explanatory variables, monitored in accordance with the monitoring requirements.
Note: The explanatory variables must be chosen before the initial selection for the population: see section 19.
 (2) For Ws,t:
 (a) the variables must only be included in the regression model if:
 (i) there are sites affected by attrition in the population in the measurement period; and
 (ii) the variables can be estimated for the entire measurement period and for time periods in the measurement period that are contiguous and do not overlap; and
 (b) the change in the number of