validate_drift_dm: Validate a DDM object

In dRiftDM: Estimating (Time-Dependent) Drift Diffusion Models

Validate a DDM object

Description

Performs basic checks to ensure everything is as expected with the model. This function should be called whenever modifying a ddm object!

Usage

validate_drift_dm(drift_dm_obj)

Arguments

drift_dm_obj

the ddm object

Details

Checks:

• The flex_prms_object via validate_flex_prms()

• The prms_solve (that it is a named numeric vector check_if_named_numeric_vector() with the expected entries) and that nt, nx make sense. This may adjust t_max if t_max is smaller than max(RT) of the observed data

• The solver string (only a single string and that it refers to something that is actually implemented). If im_zero, then check if dirac delta on 0.

• The cost_function string (only a single string and that it refers to something that is actually implemented).

• If cost_function is a summary statistic, that the objects stats_agg exists and has the correct structure.

• That the list comp_funs only contains functions and that each function provides the expected arguments

• If PDFs exist, the names, lengths and data type

• If cost_val exists, if it is a single numeric

• If obs_data exists, the data type, names, and structure

• The b_coding (column, u_name_value and l_name_value).

Value

the ddm object, after it passed all checks. Usually, it will be unmodified. The only exception is when the observed RTs are larger than t_max. Then, the returned ddm object has a new t_maxthat covers the largest RTs.

dRiftDM documentation built on Dec. 1, 2025, 5:08 p.m.