deleted default cutoff, changed regex

data_download.sh

@@ -12,13 +12,12 @@ figlet "TESTSET AFTER ID COLUMN CUT"
 head -n 5 test_without_id_column.csv
 
 figlet "CUTOFF DATA FROM TRAIN SET"
-cutoff="10"
 shift "$(($OPTIND - 1))"
 if [[ "$1" == "--cutoff" ]]; then
   shift
-  if [[ ! "$1" =~ ^[0-9]+$ ]]; then
+  if [[ ! "$1" =~ ^[1-9][0-9]*$ ]]; then
     echo "Error: cutoff value must be a positive number"
-    exit 1
+    exit 1 
   fi
   cutoff=$(("$1" + 1))
   echo "CUTOFF $cutoff"