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diff --git a/sys/gio/gplotv.x b/sys/gio/gplotv.x
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+# GPLOTV -- Plot a vector.  This routine is provided for the convenience of
+# the user who does not need to exercise fine control over the details of
+# how the plot is generated.
+
+procedure gplotv (v, npts, x1, x2, title)
+
+real	v[ARB]			# data vector
+int	npts			# number of data points
+real	x1, x2			# range of X in data vector
+char	title[ARB]		# plot title
+
+pointer	gp
+pointer	gopen()
+errchk	gopen, gploto
+
+begin
+	gp = gopen ("stdgraph", NEW_FILE, STDGRAPH)
+	call gploto (gp, v, npts, x1, x2, title)
+	call gclose (gp)
+end