Definition of regressors elements is available only if the mlxtran model used in a Simulx project uses it. In this case, specification of regressors is mandatory. All regressors used in a model are displayed in one element as separate columns.
- If a Monolix project was imported, then regressors names come from a dataset – headers of columns tagged as regressor.
- When building a project from scratch, regressor names are equal to names used in a model.
Demo projects: 3.6.regressors
Create new regressors element
There are two types of regressor elements:
- Manual: It is a vector with manually defined time points and values, which are common for all individuals.
Example: parameter – covariate relationship with the covariate as a regressor
- External: Regressors definition is a table with the following mandatory columns: “time” for time points and “regressor_name” for regressor values. Optionally, it can have a column “id”. In the absence of the “id” column, the time grid is equal for all individuals and occasions (if defined in the model).
Example: PK-PD model with PK measurements as a regressor
Regressors imported from Monolix
Importing a Monolix project generates automatically regressors element with regressors names from the dataset:
- mlx_Reg: contains Ids, times and regressors values read from the dataset. Occasions are included if any.