diff --git a/plotpipe/example6.csv b/plotpipe/example6.csv
new file mode 100644
index 0000000..eaf1b55
--- /dev/null
+++ b/plotpipe/example6.csv
@@ -0,0 +1,6 @@
+header1
+3
+5
+7
+1
+2
diff --git a/plotpipe/plotpipe b/plotpipe/plotpipe
index 1e826f5..18da3c3 100755
--- a/plotpipe/plotpipe
+++ b/plotpipe/plotpipe
@@ -14,7 +14,7 @@ I<datagenerator> | B<plotpipe> [-H] [-0] [-C str] [-h] [-V]
 
 =head1 DESCRIPTION
 
-B<plotpipe> is a simple wrapper for GNUPlot to simply plot 1D and 2D-data.
+B<plotpipe> is a simple wrapper for Gnuplot to simply plot data.
 
 The input is a CSV-file. Lines starting with '#' will be used as
 titles on the plot.
@@ -67,6 +67,10 @@ Show version
 
 =head1 EXAMPLE
 
+Plot the points (1,100) .. (100,1):
+
+  paste <(seq 100 -1 1) | plotpipe
+
 Plot the points (1,101) .. (100,200):
 
   paste <(seq 100) <(seq 101 200) | plotpipe
@@ -295,6 +299,9 @@ if(@title) { chomp($title[$#title]); }
 if(not defined $opt::colsep) {
     $opt::colsep = find_sep(@csv);
 }
+if($opt::colsep eq "") {
+    $opt::colsep = "\001soMe valUE tHat dOes nOT eXisT\002";
+}
 
 # Autoguess header
 my @header;
@@ -319,14 +326,27 @@ use File::Temp qw(tempfile);
 $ENV{'TMPDIR'} ||= "/tmp";
 my($filehandle,$filename) =
     tempfile(DIR=>$ENV{'TMPDIR'}, TEMPLATE => 'plotXXXXX');
-for(@csv) {
-    chomp;
-#    print((join "\t", split /$opt::colsep/, $_),"\n");
-    print $filehandle ((join "\001", split /$opt::colsep/, $_),"\n");
+my $ncols = split /$opt::colsep/, $csv[0];
+if($ncols >= 2) {
+    # Column 1 = x-axis
+    for(@csv) {
+	chomp;
+	print $filehandle ((join "\001", split /$opt::colsep/, $_),"\n");
+    }
+} else {
+    # Column 1 = y-axis
+    my $t = 1;
+    # Convert 1 column to 2 column
+    for(@csv) {
+	chomp;
+	print $filehandle ((join "\001", $t++, $_),"\n");
+    }
+    # Plot 2 columns
+unshift(@header,"");
+    $ncols = 2;
 }
 
 # Generate the variant part of Gnuplot script
-my $ncols = split /$opt::colsep/, $csv[0];
 for(my $col = 2; $col <= $ncols; $col++) {
     my $legend;
     if($opt::header) {
@@ -348,6 +368,6 @@ plot @plotscript
 _EOS
 
 open GNUPLOT,"|-", "gnuplot -p -e ".Q($plotscript) or die;
-# print "gnuplot -p -e ".($plotscript);
+#print "gnuplot -p -e ".($plotscript);
 close GNUPLOT;
 unlink $filename;