Endogenous variables are dependent variables in a statistical model that correlate with other factors within a given model. Endogenous variables can have a positive or negative correlation.

Feather tells me an "error" that the value is undefined where an array is expected. Yes, in theory, someone could set the variable to undefined through an init-struct, but this would be true for each ...

Allows to use attributes to define global variables in PHPUnit test cases. Supported attributes: #[Env] for $_ENV #[Server] for $_SERVER #[Putenv] for putenv() Annotations were previously supported up ...