Re: [rrd-developers] ROL and ROR for RPN

Hi Steve, I like the patch ... would you make it into a pull request on github (vs the master branch) and include the appropriate documentation changes ... cheers tobi Today Steve Shipway wrote: So, I have a patch (unified context diff) to add the RPN operators ROLL, INDEX, COPY and DEPTH.

[rrd-developers] rrd_calc and avoid repeated memory allocations/initial setups

Hi! It seems as if there is no easy means to store extra data for the whole life-time of the rpn_calc loop. The reason why I ask is because I am implementing the predictperc function, which is similar to predict and predictsigma but it gives the X percentile. For this I need to order the

Re: [rrd-developers] Unexpected behaviour of PREDICT and PREDICTSIGMA

On 27.04.2014, at 10:03, Steve Shipway s.ship...@auckland.ac.nz wrote: Percentile calculations -- which we already have via the PERCENT VDEF operation -- are progressively more inaccurate the larger the granularity of the underlying RRA. Explaining this ended up on the Routers2 FAQ it