--start 920804400 --end 920808000 \
--vertical-label m/s \
DEF:myspeed=test.rrd:speed:AVERAGE \
- CDEF:realspeed=myspeed,1000,* \
+ CDEF:realspeed=myspeed,1000,\* \
LINE2:realspeed#FF0000
After viewing this GIF, you notice the "m" has disappeared. This it what