predictDB_mesa_peer_pc_combos

running elastic net on mesa populations with combinations of peer factors and pcs

##Instructions: how to run elastic net combos **all data found in /home/lauren/files_for_revisions_plosgen/en_v7

1. There are 3 directories in /en_v7/prepare_data and contain the processed data ready to use

• **/en_v7/prepare_data/covariates
• **/en_v7/prepare_data/expression
• **/en_v7/prepare_data/genotypes

2. /en_v7/new_output will contain all processed elnet files

3./en_v7/dbs will have the new db files for running models with PrediXcan

4./en_v7/model_training/scripts/ has all the scripts needed to run elastic net and generate models from mesa

• **There are three files needed to run combos adjust these to run models accordingly
  1. mesa_pops2.txt
  2. mesa_peers.txt
  3. mesa_covars.txt
• **adjust pop_train_combos.R to contain the correct paths to file directories (prepare_data files) *this file calls gtex_v7_nested_cv_elnet_combo.R
• **run train_models_jobs_combo.sh *this calls pop_train_models_combo.pbs and inputs the correct variables to run models