OK yes then sampling isn't the right word. So what you would want to have is API like "count faces in N buckets between a range of [min..max] values". That would create the ranges for you and then you would be able to use the RangeFacetCounts as usual.
Would you like to open a JIRA issue and post a patch? I guess it can either be an additional constructor on LongRangeFacetCounts (and Double), or a separate utility class which given min/max values and numBuckets, creates the proper Range[]? Shai On Tue, Mar 10, 2015 at 4:07 PM, Gimantha Bandara <giman...@wso2.com> wrote: > Hi Shai, > > Yes, Splitting ranges into smaller ranges is not as same as sampling. I > have used the wrong word there. I think RandomSamplingFacetsCollector is > for "sampling" a larger dataset and that class cannot be used to implement > the described example above. I think I ll have to prepare the Ranges > manually and pass them to LongRangeFacetsCounts. > > On Tue, Mar 10, 2015 at 4:54 PM, Shai Erera <ser...@gmail.com> wrote: > > > I am not sure that splitting the ranges into smaller ranges is the same > as > > sampling. > > > > Take a look RandomSamplingFacetsCollector - it implements sampling by > > sampling the document space, not the facet values space. > > > > So if for instance you use a LongRangeFacetCounts in conjunction with a > > RandomSamplingFacetsCollector, you would get the matching documents space > > sampled, and the counts you would get for each range could be considered > > "sampled" too. This is at least how we implemented facet sampling. > > > > Shai > > > > On Tue, Mar 10, 2015 at 10:21 AM, Gimantha Bandara <giman...@wso2.com> > > wrote: > > > > > What I am planning to do is, split the given time range into smaller > time > > > ranges by myself and pass them to a LongRangeFacetsCount object and > get > > > the counts for each sub range. Is this the correct way? > > > > > > On Tue, Mar 10, 2015 at 12:01 AM, Gimantha Bandara <giman...@wso2.com> > > > wrote: > > > > > > > Any updates on this please? Do I have to write my own code to sample > > and > > > > get the hitcount? > > > > > > > > On Sat, Mar 7, 2015 at 2:14 PM, Gimantha Bandara <giman...@wso2.com> > > > > wrote: > > > > > > > >> Any help on this please? > > > >> > > > >> On Fri, Mar 6, 2015 at 3:13 PM, Gimantha Bandara <giman...@wso2.com > > > > > >> wrote: > > > >> > > > >>> Hi, > > > >>> > > > >>> I am trying to create some APIs using lucene facets APIs. First I > > will > > > >>> explain my requirement with an example. Lets say I am keeping track > > of > > > the > > > >>> count of people who enter through a certain door. Lets say the > time > > > range > > > >>> I am interested in Last 6 hours( to get the total count, I know > that > > I > > > ll > > > >>> have to use Ranged Facets). How do I sample this time range and get > > the > > > >>> counts of each sample? In other words, as an example, If I split > the > > > last > > > >>> 6 hours into 5 minutes samples, I get 72 (6*60/5 ) different time > > > ranges. I > > > >>> would be interested in getting hit counts for each of these 72 > ranges > > > in an > > > >>> array with the respective lower bound of each sample. Can someone > > > point me > > > >>> the direction I should follow/ the classes which can be helpful > > > looking at? > > > >>> ElasticSearch already has this feature exposed by their Javascript > > API. > > > >>> > > > >>> Is it possible to implement the same with lucene? > > > >>> Is there a Facets user guide for lucene 4.10.3 or lucene 5.0.0 ? > > > >>> > > > >>> Thanks, > > > >>> > > > >>> -- > > > >>> Gimantha Bandara > > > >>> Software Engineer > > > >>> WSO2. Inc : http://wso2.com > > > >>> Mobile : +94714961919 > > > >>> > > > >> > > > >> > > > >> > > > >> -- > > > >> Gimantha Bandara > > > >> Software Engineer > > > >> WSO2. Inc : http://wso2.com > > > >> Mobile : +94714961919 > > > >> > > > > > > > > > > > > > > > > -- > > > > Gimantha Bandara > > > > Software Engineer > > > > WSO2. Inc : http://wso2.com > > > > Mobile : +94714961919 > > > > > > > > > > > > > > > > -- > > > Gimantha Bandara > > > Software Engineer > > > WSO2. Inc : http://wso2.com > > > Mobile : +94714961919 > > > > > > > > > -- > Gimantha Bandara > Software Engineer > WSO2. Inc : http://wso2.com > Mobile : +94714961919 >
