2-umap.py

# Check first five columns in matrix.csv
#!cut -d, -f-5 matrix.csv | head

# Import data with Bash command discarding first column
matrix = dt.fread(cmd='cut -d, -f2- matrix.csv',
                  header=True, sep=',', columns=dt.int32) # ~7 GB (76533, 50281)
# Import metadata
metadata = pd.read_csv('metadata.csv')