[Gnuplot-bugs] Line plot not connecting across missing data

[Bucic V. <va...@ic...>]

Hi

	When I switched to gnuplot v4.0 the feature of lines, boxes, etc,  
skipping over missing data stopped working as expected.
It is always skipping missing data and not connecting dots over it.

plot using 1:4 (should connect over missing data)
plot using 1:($4) (should create GAPS for missing data)

Tried 2 'plot' styles, they both produce the same result (GAPS),  
although the docs state otherwise.

Has anyone seen this? I need to connect over missing data. Any  
pointers would be most helpful.

Thank you.

Environment info: -------------------------------------------------->

System: SuSE 10.0 OSS

Terminal type used is PNG.

Directive for missing values is used:
set datafile missing "?"

Plot CMD #1:
plot \
"/tmp/gnuPlot_D.1570033627" using 4:1 axis x1y1 title "Name1" with  
boxes, \
"/tmp/gnuPlot_D.1570033627" using 4:2 axis x1y1 title "Name2" with  
boxes, \
"/tmp/gnuPlot_D.1570033627" using 4:3 axis x1y2 title "Name3" with lines


Plot CMD #2:
plot \
"/tmp/gnuPlot_D.-953404974" using 4:($1) axis x1y1 title "Name1" with  
boxes, \
"/tmp/gnuPlot_D.-953404974" using 4:($2) axis x1y1 title "Name2" with  
boxes, \
"/tmp/gnuPlot_D.-953404974" using 4:($3) axis x1y2 title "Name3" with  
lines


Data (partial):
80.99 66.9 60.7 2006-01-09 12:00:00
? 63.754545454545 60.7 2006-01-09 12:05:00
? 61.345454545455 68.1 2006-01-09 12:10:00
? 61.890909090909 80.6 2006-01-09 12:15:00
? 65.590909090909 80.7 2006-01-09 12:20:00
? 69.181818181818 80.6 2006-01-09 12:25:00
? 68.163636363636 69 2006-01-09 12:30:00
? 66.081818181818 70.1 2006-01-09 12:35:00
? 65.827272727273 70.1 2006-01-09 12:40:00
? 65.345454545455 69.6 2006-01-09 12:45:00
? 68.118181818182 69.5 2006-01-09 12:50:00
? 70.881818181818 60.9 2006-01-09 12:55:00
74.96 70.9 61 2006-01-09 13:00:00
? 70.927272727273 38.7 2006-01-09 13:05:00
? 68.254545454545 71.2 2006-01-09 13:10:00
? 67.4 71.1 2006-01-09 13:15:00
? 66.527272727273 68.1 2006-01-09 13:20:00
? 65.390909090909 67.3 2006-01-09 13:25:00
? 65.236363636364 92.6 2006-01-09 13:30:00
? 67.281818181818 56.7 2006-01-09 13:35:00
? 66.063636363636 58.4 2006-01-09 13:40:00
? 65.045454545455 39.1 2006-01-09 13:45:00
? 62.281818181818 39.1 2006-01-09 13:50:00
? 60.3 38.7 2006-01-09 13:55:00
73.97 58.272727272727 57.2 2006-01-09 14:00:00
? 59.954545454545 57.2 2006-01-09 14:05:00
? 58.681818181818 57.9 2006-01-09 14:10:00
? 57.481818181818 ? 2006-01-09 14:15:00
70.84 ? ? 2006-01-09 15:00:00
69.25 ? ? 2006-01-09 16:00:00
92.31 ? ? 2006-01-09 17:00:00
122.63 ? ? 2006-01-09 18:00:00
108.03 ? ? 2006-01-09 19:00:00
98.62 ? ? 2006-01-09 20:00:00
85.06 ? ? 2006-01-09 21:00:00
84.08 ? ? 2006-01-09 22:00:00
63.25 ? ? 2006-01-09 23:00:00
52.56 ? ? 2006-01-10 00:00:00



------------------------------------------------------------------------ 
-----
gnuplot> show version long

         G N U P L O T
         Version 4.0 patchlevel 0
         last modified Thu Apr 15 14:44:22 CEST 2004
         System: Linux 2.6.13-15.7-smp

         Copyright (C) 1986 - 1993, 1998, 2004
         Thomas Williams, Colin Kelley and many others

         This is gnuplot version 4.0.  Please refer to the documentation
         for command syntax changes.  The old syntax will be accepted
         throughout the 4.0 series, but all save files use the new  
syntax.

         Type `help` to access the on-line reference manual.
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         Send comments and requests for help to
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         Send bugs, suggestions and mods to
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Compile options:
-READLINE  +LIBREADLINE  +HISTORY  +GD_PNG  +GD_JPEG  +GD_GIF   
+GD_TTF  -PNG
-NOCWDRC  +X11  +USE_MOUSE  +GNUGRAPH

DRIVER_DIR   = "/usr/lib/gnuplot/4.0"
HELPFILE     = "/usr/share/gnuplot/gnuplot/4.0/gnuplot.gih"
CONTACT      = <gnu...@li...>
HELPMAIL     = <gnu...@li...>
------------------------------------------------------------------------ 
-----

Thanks again.