Created
May 11, 2012 21:13
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(defn counts-per-day [intent-tap] | |
(<- [!intent !bucket !count] | |
(intent-tap _ !intent !ped) | |
(g/extract-true-as-of !ped :> !ms) | |
(o/time-buckets ["d"] !ms :> !bucket) | |
(c/count !count))) | |
(defn avg-sd [counts-per-day-sq min-avg] | |
(<- [!intent !a !sd] | |
(counts-per-day-sq !intent !bucket !count) | |
(sample-variance !count :> !v) | |
(>= !a min-avg) | |
(sqrt !v :> !sd) | |
(c/avg !count :> !a))) | |
(defn last-day-count [counts-per-day-sq date] | |
(<- [!intent !count] | |
(counts-per-day-sq !intent !bucket !count) | |
(= !bucket (str "d" date)))) | |
(defn intent-metrics [avg-sd-sq last-day-count-sq] | |
(<- [!intent !count !avg !sd !ad !z-score !percent-diff] | |
(avg-sd-sq !intent !avg !sd ) | |
(last-day-count-sq !intent !count) | |
(- !count !avg :> !diff) | |
(abs-dev !count !avg :> !ad) | |
(div-or-zero !diff !avg :> !p-diff) | |
(div-or-zero !diff !sd :> !z-score) | |
(percentify !p-diff :> !percent-diff))) | |
(defn intent-trend-metrics-paged [psn lookback-window date min-avg | |
sort-field page-size intent-tap] | |
(let [counts-per-day-sq (counts-per-day intent-tap) | |
avg-sd-sq (avg-sd counts-per-day-sq min-avg) | |
last-day-count-sq (last-day-count counts-per-day-sq date) | |
metrics-sq (intent-metrics avg-sd-sq last-day-count-sq)] | |
(<- [!ser-key !ser-val] | |
(metrics-sq !intent !count !avg !sd !ad !z-score !percent-diff) | |
(:sort sort-field) | |
(:reverse true) | |
(o/paged-trend-metrics [psn lookback-window page-size date] | |
!intent !count !avg !sd !ad !z-score !percent-diff | |
:> !key !val) | |
(o/serialize-thrift !key !val :> !ser-key !ser-val)))) |
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