fit_models_and_save: Make a list of models and save as file

In Mushriq/mixmap: Test package to share mixmap code

Make a list of models and save as file

Description

This function creates an XGBoost model for each perturbation given, saves the list of models, and returns a message.

Usage

fit_models_and_save(
  perturbs,
  chunk_indx,
  model_dataset,
  response_cutoff = 0.5,
  weight_cap = 0,
  nfolds = 3,
  nrepeats = 1,
  nrounds = 200,
  min_score = 0.5,
  max_depth = 3,
  f_subsample = 1,
  skip_eval = FALSE,
  shuffle = FALSE,
  xgb_params = NULL,
  n_threads = 4,
  use_gpu = TRUE,
  gpu_id = 0,
  seed = 123,
  path = NULL
)

Arguments

perturbs	A vector of perturbations.
chunk_indx	Integer index used, for progress report.
model_dataset	A dataframe with the perturbation in a column and all other predictors. Sample names are row names.
response_cutoff	The value above which the sample is considered sensitive.
weight_cap	The maximum weight of each minority case when resampling. Set to 0 if no resampling needed.
nfolds	The number of folds in k-fold cross validation.
nrepeats	The number of repeats in k-fold cross validation.
nrounds	The maximum number of trees in the XGBoost model.
min_score	The minimum number of r^2 value for a model to be considered for the next stage (making predictions and calculating SHAP values).
skip_eval	Default = FALSE. If TRUE, k-fold CV will not be conducted and instead all models will be pushed to the next stage.
use_gpu	Default = TRUE. Set to FALSE if using CPU.
seed	Random seed
path	Folder path (e.g. "/home/test/models") to save models in.

Examples

fit_models_and_save(my_data, c("ko_ctnnb1","ko_myod1"))

Mushriq/mixmap documentation built on Jan. 28, 2024, 7:22 p.m.