Here are my variables:

Evaluate specific Policies against a Server List

Uses the Invoke-PolicyEvaluation Cmdlet

v4.12

Parameter -ConfigurationGroup specifies the

Central Management Server group to evaluate

Parameter -PolicyCategoryFilter specifies the

category of policies to evaluate

Parameter -EvalMode accepts "Check" to report policy

results, "Configure" to reconfigure any violations

Declare variables to define the central warehouse

in which to write the output, store the policies

$CentralManagementServer = "CMS_ServerName"
$HistoryDatabase = "EPM"
$configurationGroup = "DEV"
$PolicyCategoryFilter = "Server Configuration"
$EvalMode= "cHECK"

Define the location to write the results of the policy evaluation

$ResultDir = "D:\MSSQL\vDBA_EPM\Results\"

End of variables