[rrd-users] CDEF problem with PREV

[Adrian Ariza]

Hello,

I'm trying to use PREV in a CDEF like this:
rrdtool graph - -w 500 -h 120 -a PNG --start -86400
DEF:out1=asd.rrd:IN:AVERAGE  CDEF:prev1=PREV(out1) CDEF:time=TIME
CDEF:prevtime=PREV(time) CDEF:derivate=out1,prev1,-,time,prevtime,-,/
LINE3:derivate#000077:derivate LINE1:out1#007700:'raw data'

When I run it I recive
syntax error near unexpected token `('

I'm Using RRDtool 1.0.45
What is my mistake?
Thanks

PD: Sorry for my english

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