--- a/CSP2/bin/screenSNPDiffs.py	Wed Dec 04 12:50:59 2024 -0500
+++ b/CSP2/bin/screenSNPDiffs.py	Wed Dec 04 13:48:13 2024 -0500
@@ -555,7 +555,7 @@
 parser.add_argument("--query_edge", default=150,type=int, help="Query edge")
 parser.add_argument("--density_windows",default="1000,125,15", help="Density windows (comma-separated)")
 parser.add_argument("--max_snps", default="3,2,1",help="Maximum SNPs (comma-separated)")
-parser.add_argument('--trim_name', type=str, default="", help='trim name')
+parser.add_argument('--trim_name', nargs='?', const="", default="", type=str, help='Trim name')
 parser.add_argument("--output_file", help="Output file")
 parser.add_argument("--ref_id", help="Reference IDs file")
 parser.add_argument("--tmp_dir",default="", help="TMP dir")