[rrd-users] CDEF

[Norazah Abd Aziz]

Dear Tobi,

When i try the following command:
                              rrdtool graph
speed.gif                                 \
                              --start 920804400 --end
920808000               \

DEF:myspeed=test.rrd:speed:AVERAGE              \
                              LINE2:myspeed#FF0000

its successful create speed.gif  BUT when i try another command :

                           rrdtool graph
speed2.gif                           \
                           --start 920804400 --end
920808000               \
                           --vertical-label
m/s                            \

DEF:myspeed=test.rrd:speed:AVERAGE              \

CDEF:realspeed=myspeed,1000,*                   \
                           LINE2:realspeed#FF0000

its cannot create speed2.gif, the message "rrdtool: No match." come out.
Why?

Please help me.




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