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-rw-r--r--ds9/library/plot.tcl1
1 files changed, 1 insertions, 0 deletions
diff --git a/ds9/library/plot.tcl b/ds9/library/plot.tcl
index 48b3417..7bc0ecc 100644
--- a/ds9/library/plot.tcl
+++ b/ds9/library/plot.tcl
@@ -258,6 +258,7 @@ proc PlotDataSetOne {varname dim data} {
# remove all non-numeric data
regsub -all {[^0-9.e\- ]+} $data {} data
+ set ox [lindex $data 0]
set x {}
set y {}
set xe {}