[rrd-users] Lookup table

[Miguel]

I am trying to graph a lookup table on top of the data in my RRD.  Is this possible?
In Perl, I have a hash filled with timestamps and values, so I tried this:

CDEF:var=$lookuptable{TIME}

I was hoping that TIME would get fed into the hash but it gave an error, ERROR: can't parse CDEF 'var='.

Is there another way of doing this?

Thanks


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