reduce data sampling rate from 10% to 3%

Author: dohlee

README.md

@@ -20,6 +20,6 @@ $ cd data
 $ snakemake -s download.smk -j1
 ```
 
-*NOTE: Only 10% of the entire OAS sequences were downloaded for now due to space and computational cost.*
+*NOTE: Only 3% of the entire OAS sequences were downloaded for now due to space and computational cost.*
 
 *TODO: Hint for total # of sequences, total size*

data/download.smk

@@ -2,8 +2,8 @@ import pandas as pd
 
 manifest = pd.read_csv('manifest_230324.csv')
 
-# Randomly sample 10% of the dataset.
-manifest = manifest.sample(frac=0.1, random_state=42)
+# Randomly sample 3% of the dataset.
+manifest = manifest.sample(frac=0.03, random_state=42)
 
 f2type = {r.filename:r.seq_type for r in manifest.to_records()}
 f2study = {r.filename:r.study for r in manifest.to_records()}