use this function to guide end-users step-by-step to identify best pda models for their tasks, and set up control.
pdaCatalog(task=c('Regression', 'Survival', 'Trial_emulation',
'Causal_inference', 'Design_analysis', 'Clustering'),
write_json_file_path=getwd(), optim_maxit,optim_method,init_method)pda control
user-specified task, c('Regression', 'Survival', 'Trial_emulation', 'Causal_inference', 'Design_analysis', 'Clustering'). If no specify, display all models
directory path to write the control file to
option in the control file for the optimization in pda, default 100
option in the control file for the optimization in pda, default "BFGS"
option in the control file for calculating the initial estimate in pda, default "meta"
pda