how to edit timestamp at index 0

[eka...@gmail.com]

hi all,

i want to edit the datapoint's timestamp at index 0 of a gts so that when feeding it to bucketizer i know exactly the last bucket end . (setting lastbucket value for BUCKETIZE function doesn't work for me because i need this value to be after 'younger' datapoint.

example:

NEWGTS
'test name'
RENAME
{ 'label0' '42' 'label1' 'foo' }
RELABEL

1100 NaN NaN NaN  10 ADDVALUE
1000 NaN NaN NaN  9 ADDVALUE
900  NaN NaN NaN  8 ADDVALUE
700  NaN NaN NaN  7 ADDVALUE
500  NaN NaN NaN  6 ADDVALUE
400  NaN NaN NaN  5 ADDVALUE
300  NaN NaN NaN  4 ADDVALUE
200  NaN NaN NaN  3 ADDVALUE
100  NaN NaN NaN 2 ADDVALUE

'gts' STORE
$gts

0 ATINDEX
'lastDataPoint' STORE
// Here i want to do something like:
$lastDataPoint = 3000 NaN NaN NaN NaN //i need to only change the timestamp but keep the value
//and add this tick to $gts before bucketizing
???

Thanks,

Nils


[Mathias Herberts]

Can't you use 0 to automatically determine the 'lastbucket' value?

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[eka...@gmail.com]

i can't because i need to bucketize it with bucketizer.last

[eka...@gmail.com]

 ok thanks, you take me on the right way. i have ADDVALUE to the initial gts with a timstamp of *wanted last bucket end* + *bucketspan*  so i get a fake bucket in addition with of the real buckets but all is sync

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