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playground.clj
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(ns tablecloth.playground
(:require [tablecloth.api :as tc]
[tablecloth.api.utils :refer [rank]]
[tech.v3.dataset :as ds]
[tech.v3.dataset.column :as c]
[tech.v3.dataset.join :as j]
[tech.v3.datatype.functional :as dfn]
[clojure.string :as str]
[tech.v3.datatype.argops :as aop]
[tech.v3.dataset.column :as col]
[tech.v3.io :as tio]
[tech.v3.dataset.io :as ds-io]
[tech.v3.dataset.zip :as zip]
[clojure.test :as t])
(:import [org.roaringbitmap RoaringBitmap]))
(ds/concat
(ds/new-dataset [(c/new-column :a [])])
(ds/new-dataset [(c/new-column :a [1 2 3])]))
(-> (tc/dataset {} {:column-names [:a :b]}))
(defn cartesian-product
[xxs]
(if (seq xxs)
(for [n (cartesian-product (rest xxs))
x (first xxs)]
(conj n x))
'(nil)))
(defn expand-grid
[in]
(-> (map (partial zipmap (keys in))
(cartesian-product (vals in)))
(tc/dataset)))
(def input {:height (range 60 81 5)
:weight (range 100 301 50)
:sex [:Male :Female]})
(expand-grid input)
;; => _unnamed [50 3]:
;; | :sex | :height | :weight |
;; |-------|--------:|--------:|
;; | :Male | 60 | 100 |
;; | :Male | 65 | 100 |
;; | :Male | 70 | 100 |
;; | :Male | 75 | 100 |
;; | :Male | 80 | 100 |
;; | :Male | 60 | 150 |
;; | :Male | 65 | 150 |
;; | :Male | 70 | 150 |
;; | :Male | 75 | 150 |
;; | :Male | 80 | 150 |
;; | :Male | 60 | 200 |
;; | :Male | 65 | 200 |
;; | :Male | 70 | 200 |
;; | :Male | 75 | 200 |
;; | :Male | 80 | 200 |
;; | :Male | 60 | 250 |
;; | :Male | 65 | 250 |
;; | :Male | 70 | 250 |
;; | :Male | 75 | 250 |
;; | :Male | 80 | 250 |
;; | :Male | 60 | 300 |
;; | :Male | 65 | 300 |
;; | :Male | 70 | 300 |
;; | :Male | 75 | 300 |
;; | :Male | 80 | 300 |
(def ds (-> {:tags [["app" "mobile" "travel"] ["business"] ["tool" "automation" "macos"]
["mobile" "macos"] ["travel" "app" "macos"]]}
(tc/dataset)
(tc/add-column :id (range)))) ;; we need to add artificial column
ds
;; => _unnamed [5 2]:
;; | :tags | :id |
;; |-------------------------------|----:|
;; | ["app" "mobile" "travel"] | 0 |
;; | ["business"] | 1 |
;; | ["tool" "automation" "macos"] | 2 |
;; | ["mobile" "macos"] | 3 |
;; | ["travel" "app" "macos"] | 4 |
(def unrolled-ds (-> (tc/unroll ds [:tags])
(tc/add-column :exists? true)))
unrolled-ds
;; => _unnamed [12 3]:
;; | :id | :tags | :exists? |
;; |----:|------------|----------|
;; | 0 | app | true |
;; | 0 | mobile | true |
;; | 0 | travel | true |
;; | 1 | business | true |
;; | 2 | tool | true |
;; | 2 | automation | true |
;; | 2 | macos | true |
;; | 3 | mobile | true |
;; | 3 | macos | true |
;; | 4 | travel | true |
;; | 4 | app | true |
;; | 4 | macos | true |
(tc/pivot->wider unrolled-ds :tags :exists? {:drop-missing? false})
;; => _unnamed [5 8]:
;; | :id | app | mobile | travel | business | tool | automation | macos |
;; |----:|------|--------|--------|----------|------|------------|-------|
;; | 2 | | | | | true | true | true |
;; | 3 | | true | | | | | true |
;; | 4 | true | | true | | | | true |
;; | 1 | | | | true | | | |
;; | 0 | true | true | true | | | | |
(-> (tc/pivot->wider unrolled-ds :tags :exists? {:drop-missing? false})
(tc/replace-missing :all :value false))
;; => _unnamed [5 8]:
;; | :id | app | mobile | travel | business | tool | automation | macos |
;; |----:|-------|--------|--------|----------|-------|------------|-------|
;; | 2 | false | false | false | false | true | true | true |
;; | 3 | false | true | false | false | false | false | true |
;; | 4 | true | false | true | false | false | false | true |
;; | 1 | false | false | false | true | false | false | false |
;; | 0 | true | true | true | false | false | false | false |
(-> (tech.v3.dataset/unroll-column ds :tags)
(tech.v3.dataset/categorical->one-hot [:tags]))
(def data (tech.v3.dataset/->dataset {:a [[1 2 3] [4 5] [6 7 8]]}))
data
;; => _unnamed [3 1]:
;; | :a |
;; |---------|
;; | [1 2 3] |
;; | [4 5] |
;; | [6 7 8] |
(tech.v3.dataset/unroll-column data :a)
;; exception
(def data2 (tech.v3.dataset/add-or-update-column data :b [-1 -2 -3]))
data2
;; => _unnamed [3 2]:
;; | :a | :b |
;; |---------|---:|
;; | [1 2 3] | -1 |
;; | [4 5] | -2 |
;; | [6 7 8] | -3 |
(tech.v3.dataset/unroll-column data2 :a)
;; => _unnamed [8 2]:
;; | :b | :a |
;; |---:|---:|
;; | -1 | 1 |
;; | -1 | 2 |
;; | -1 | 3 |
;; | -2 | 4 |
;; | -2 | 5 |
;; | -3 | 6 |
;; | -3 | 7 |
;; | -3 | 8 |
(require '[tech.v3.dataset.join :as j])
(def a (tc/dataset {:a [1 2 3] :b [4 5 6]}))
(def b (tc/dataset {:c [:a :b :c] :d [:x :y :z]}))
(j/pd-merge a b {:how :cross})
;; => cross-join [9 4]:
;; | :a | :b | :c | :d |
;; |---:|---:|----|----|
;; | 1 | 4 | :a | :x |
;; | 2 | 5 | :b | :y |
;; | 3 | 6 | :c | :z |
;; | 1 | 4 | :a | :x |
;; | 2 | 5 | :b | :y |
;; | 3 | 6 | :c | :z |
;; | 1 | 4 | :a | :x |
;; | 2 | 5 | :b | :y |
;; | 3 | 6 | :c | :z |
;;;;;;;
(def df (tc/dataset {:group [1 2 1]
:item-id [1 2 2]
:item-name [:a :b :b]
:value1 [1 2 3]
:value2 [4 5 6]}))
df
;; => _unnamed [3 5]:
;; | :group | :item-id | :item-name | :value1 | :value2 |
;; |-------:|---------:|------------|--------:|--------:|
;; | 1 | 1 | :a | 1 | 4 |
;; | 2 | 2 | :b | 2 | 5 |
;; | 1 | 2 | :b | 3 | 6 |
;; cross product of regular column and nested columns
(def tmp (j/pd-merge (-> (tc/select-columns df :group)
(tc/unique-by))
(-> (tc/select-columns df [:item-id :item-name])
(tc/unique-by)) {:how :cross}))
tmp
;; => cross-join [4 3]:
;; | :group | :item-id | :item-name |
;; |-------:|---------:|------------|
;; | 1 | 1 | :a |
;; | 1 | 2 | :b |
;; | 2 | 1 | :a |
;; | 2 | 2 | :b |
(-> (tc/left-join tmp df [:group :item-id :item-name])
(tc/select-columns (tc/column-names df)))
;; => left-outer-join [4 5]:
;; | :group | :item-id | :item-name | :value1 | :value2 |
;; |-------:|---------:|------------|--------:|--------:|
;; | 1 | 1 | :a | 1 | 4 |
;; | 2 | 2 | :b | 2 | 5 |
;; | 1 | 2 | :b | 3 | 6 |
;; | 2 | 1 | :a | | |
(-> (tc/left-join tmp df [:group :item-id :item-name])
(tc/select-columns (tc/column-names df))
(tc/replace-missing :all :value 0))
;; => left-outer-join [4 5]:
;; | :group | :item-id | :item-name | :value1 | :value2 |
;; |-------:|---------:|------------|--------:|--------:|
;; | 1 | 1 | :a | 1 | 4 |
;; | 2 | 2 | :b | 2 | 5 |
;; | 1 | 2 | :b | 3 | 6 |
;; | 2 | 1 | :a | 0 | 0 |
;;;
(-> (tc/dataset [{:setting "bar", :calendar-year 2020, :ay 0, :people 2, :need "foo"}
{:setting "bar", :calendar-year 2021, :ay 0, :people 4, :need "foo"}
{:setting "quux", :calendar-year 2020, :ay 1, :people 1, :need "foo"}
{:setting "quux", :calendar-year 2021, :ay 2, :people 3, :need "foo"}
{:setting "quux", :calendar-year 2022, :ay 3, :people 6, :need "foo"}])
(tc/select-rows (comp #{0 1 2} :ay))
(:ay)
(sequential?))
;; => _unnamed [4 5]:
;; | :setting | :calendar-year | :people | :ay | :need |
;; |----------|---------------:|--------:|----:|-------|
;; | bar | 2020 | 2 | 0 | foo |
;; | bar | 2021 | 4 | 0 | foo |
;; | quux | 2020 | 1 | 1 | foo |
;; | quux | 2021 | 3 | 2 | foo |
(def ds (tc/dataset {:a [1 2 3]
:b [:A :B :C]}))
(map? ds);; => true
(seqable? (:a ds));; => true
(sequential? (ds :b));; => true
(-> (tc/dataset [{:a 1 :b 1.1 :c 1.2 :e 1.3}
{:a 1 :b 1.1 :c 5 :e 1.3}
{:a 2 :b 2.2 :c 3.2 :e 5.3}
{:a 3 :b 3.3 :c 4.2 :e 6.3}])
(tc/group-by [:a :b])
(tc/unmark-group)
(tc/select-rows #(> (ds/row-count (:data %)) 1))
(tc/mark-as-group)
(tc/ungroup))
;; => _unnamed [2 4]:
;; | :b | :c | :a | :e |
;; |----:|----:|---:|----:|
;; | 1.1 | 1.2 | 1 | 1.3 |
;; | 1.1 | 5.0 | 1 | 1.3 |
(-> (tc/dataset [{:a 1 :b 1.1 :c 1.2 :e 1.3}
{:a 1 :b 1.1 :c 5 :e 1.3}
{:a 2 :b 2.2 :c 3.2 :e 5.3}
{:a 3 :b 3.3 :c 4.2 :e 6.3}])
(tc/group-by [:a :b]))
;; => _unnamed [3 3]:
;; | :group-id | :name | :data |
;; |----------:|----------------|------------------------------|
;; | 0 | {:b 1.1, :a 1} | Group: {:b 1.1, :a 1} [2 4]: |
;; | 1 | {:b 2.2, :a 2} | Group: {:b 2.2, :a 2} [1 4]: |
;; | 2 | {:b 3.3, :a 3} | Group: {:b 3.3, :a 3} [1 4]: |
;;
(-> (tc/dataset [{"id" 1, "name" "bob"} {"id" 2, "name" "bob"}, {"id" 3, "name" "alice"}])
(tc/fold-by ["name"] (partial str/join ", ")))
;; => _unnamed [2 2]:
;; | name | id |
;; |-------|------|
;; | bob | 1, 2 |
;; | alice | 3 |
(def ds (tc/dataset {:group (repeatedly 100 #(rand-nth [:u :i :o :p]))
:a (repeatedly 100 rand)
:b (repeatedly 100 #(rand 5))}))
(-> ds
(tc/select-rows (fn [{:keys [a b]}] (> a b))))
ds
;; => _unnamed [100 3]:
;; | :group | :a | :b |
;; |--------|-----------:|-----------:|
;; | :i | 0.21923487 | 0.02757318 |
;; | :o | 0.47121141 | 1.03039666 |
;; | :i | 0.26676569 | 4.16760503 |
;; | :u | 0.38287395 | 2.24760673 |
;; | :o | 0.96585848 | 0.01097307 |
;; | :o | 0.88531448 | 4.46218351 |
;; | :p | 0.19173693 | 3.57395669 |
;; | :p | 0.53615392 | 2.74081683 |
;; | :p | 0.43978083 | 4.67902393 |
;; | :p | 0.72916344 | 1.01818710 |
;; | ... | ... | ... |
;; | :o | 0.75565644 | 0.38405762 |
;; | :p | 0.06499388 | 2.39519054 |
;; | :p | 0.33801667 | 4.25192711 |
;; | :u | 0.76001839 | 3.49197309 |
;; | :u | 0.71527541 | 1.33661718 |
;; | :u | 0.46813365 | 3.31539727 |
;; | :o | 0.90347413 | 0.59158482 |
;; | :i | 0.40986820 | 1.26976567 |
;; | :u | 0.62212172 | 2.57981844 |
;; | :u | 0.77436201 | 1.90787845 |
;; | :p | 0.95894755 | 4.35116263 |
(def agg (-> ds
(tc/group-by [:group])
(tc/aggregate-columns [:a :b] dfn/mean)
(tc/rename-columns {:a :mean-a :b :mean-b})))
agg
;; => _unnamed [4 3]:
;; | :mean-b | :group | :mean-a |
;; |-----------:|--------|-----------:|
;; | 2.20742202 | :i | 0.53935031 |
;; | 2.00721651 | :o | 0.60963595 |
;; | 2.69337664 | :u | 0.48111990 |
;; | 2.69662835 | :p | 0.50979658 |
(-> (tc/left-join ds agg :group)
(tc/drop-columns :right.group))
;; => left-outer-join [100 5]:
;; | :group | :a | :b | :mean-b | :mean-a |
;; |--------|-----------:|-----------:|-----------:|-----------:|
;; | :i | 0.21923487 | 0.02757318 | 2.20742202 | 0.53935031 |
;; | :i | 0.26676569 | 4.16760503 | 2.20742202 | 0.53935031 |
;; | :i | 0.97345184 | 3.68318639 | 2.20742202 | 0.53935031 |
;; | :i | 0.19880123 | 1.53596251 | 2.20742202 | 0.53935031 |
;; | :i | 0.13353903 | 4.57865084 | 2.20742202 | 0.53935031 |
;; | :i | 0.49446615 | 0.12514693 | 2.20742202 | 0.53935031 |
;; | :i | 0.69925871 | 0.14210092 | 2.20742202 | 0.53935031 |
;; | :i | 0.77344282 | 0.86134163 | 2.20742202 | 0.53935031 |
;; | :i | 0.56868174 | 2.86614456 | 2.20742202 | 0.53935031 |
;; | :i | 0.37321600 | 4.43636290 | 2.20742202 | 0.53935031 |
;; | ... | ... | ... | ... | ... |
;; | :p | 0.13506468 | 1.93568665 | 2.69662835 | 0.50979658 |
;; | :p | 0.23051436 | 4.22573832 | 2.69662835 | 0.50979658 |
;; | :p | 0.22231685 | 3.38299530 | 2.69662835 | 0.50979658 |
;; | :p | 0.98586194 | 0.82699630 | 2.69662835 | 0.50979658 |
;; | :p | 0.82490726 | 2.79908028 | 2.69662835 | 0.50979658 |
;; | :p | 0.35192255 | 1.06928476 | 2.69662835 | 0.50979658 |
;; | :p | 0.79226756 | 2.31301546 | 2.69662835 | 0.50979658 |
;; | :p | 0.11991132 | 2.11139863 | 2.69662835 | 0.50979658 |
;; | :p | 0.06499388 | 2.39519054 | 2.69662835 | 0.50979658 |
;; | :p | 0.33801667 | 4.25192711 | 2.69662835 | 0.50979658 |
;; | :p | 0.95894755 | 4.35116263 | 2.69662835 | 0.50979658 |
(tc/add-columns ds {:mean-a (dfn/mean (:a ds))
:mean-b (dfn/mean (:b ds))})
;; => _unnamed [100 5]:
;; | :group | :a | :b | :mean-a | :mean-b |
;; |--------|-----------:|-----------:|-----------:|-----------:|
;; | :i | 0.21923487 | 0.02757318 | 0.52913219 | 2.43060934 |
;; | :o | 0.47121141 | 1.03039666 | 0.52913219 | 2.43060934 |
;; | :i | 0.26676569 | 4.16760503 | 0.52913219 | 2.43060934 |
;; | :u | 0.38287395 | 2.24760673 | 0.52913219 | 2.43060934 |
;; | :o | 0.96585848 | 0.01097307 | 0.52913219 | 2.43060934 |
;; | :o | 0.88531448 | 4.46218351 | 0.52913219 | 2.43060934 |
;; | :p | 0.19173693 | 3.57395669 | 0.52913219 | 2.43060934 |
;; | :p | 0.53615392 | 2.74081683 | 0.52913219 | 2.43060934 |
;; | :p | 0.43978083 | 4.67902393 | 0.52913219 | 2.43060934 |
;; | :p | 0.72916344 | 1.01818710 | 0.52913219 | 2.43060934 |
;; | ... | ... | ... | ... | ... |
;; | :o | 0.75565644 | 0.38405762 | 0.52913219 | 2.43060934 |
;; | :p | 0.06499388 | 2.39519054 | 0.52913219 | 2.43060934 |
;; | :p | 0.33801667 | 4.25192711 | 0.52913219 | 2.43060934 |
;; | :u | 0.76001839 | 3.49197309 | 0.52913219 | 2.43060934 |
;; | :u | 0.71527541 | 1.33661718 | 0.52913219 | 2.43060934 |
;; | :u | 0.46813365 | 3.31539727 | 0.52913219 | 2.43060934 |
;; | :o | 0.90347413 | 0.59158482 | 0.52913219 | 2.43060934 |
;; | :i | 0.40986820 | 1.26976567 | 0.52913219 | 2.43060934 |
;; | :u | 0.62212172 | 2.57981844 | 0.52913219 | 2.43060934 |
;; | :u | 0.77436201 | 1.90787845 | 0.52913219 | 2.43060934 |
;; | :p | 0.95894755 | 4.35116263 | 0.52913219 | 2.43060934 |
(def ds (tc/dataset {:a [1 2 3]
:b [99 98 97]
:c [:r :t :y]}))
(tc/rows ds) ;; returns vector of rows as vectors
;; => [[1 99 :r] [2 98 :t] [3 97 :y]]
(tc/rows ds :as-maps) ;; returns vector of rows as columns
;; => [{:a 1, :b 99, :c :r} {:a 2, :b 98, :c :t} {:a 3, :b 97, :c :y}]
(tc/columns ds) ;; returns sequence of columns
;; => [#tech.v3.dataset.column<int64>[3]
;; :a
;; [1, 2, 3] #tech.v3.dataset.column<int64>[3]
;; :b
;; [99, 98, 97] #tech.v3.dataset.column<keyword>[3]
;; :c
;; [:r, :t, :y]]
(tc/column ds :c) ;; returns column
;; => #tech.v3.dataset.column<keyword>[3]
;; :c
;; [:r, :t, :y]
;; column is a sequence
(seqable? (tc/column ds :c)) ;; => true
(first (tc/column ds :c)) ;; => :r
;; column is a vector
(sequential? (tc/column ds :c)) ;; => true
((tc/column ds :c) 0) ;; => :r
(def DS (tc/dataset {:V1 (take 9 (cycle [1 2]))
:V2 (range 1 10)
:V3 (take 9 (cycle [0.5 1.0 1.5]))
:V4 (take 9 (cycle ["A" "B" "C"]))}))
(-> (tc/group-by DS {:z [1 2 3]
:b [0 1 2]})
(tc/ungroup))
;; => _unnamed [2 3]:
;; | :name | :group-id | :data |
;; |---------|----------:|-----------------------|
;; | {:V1 1} | 0 | Group: {:V1 1} [5 4]: |
;; | {:V1 2} | 1 | Group: {:V1 2} [4 4]: |
(tc/map-rows DS (fn [{:keys [V1 V2]}] {:V1 0
:V5 (/ (+ V1 V2) (double V2))}))
(-> (tc/group-by DS [:V3])
(tc/map-rows (fn [{:keys [V1 V2]}] {:V1 0
:V5 (/ (+ V1 V2) (double V2))}))
(tc/ungroup))
(tc/separate-column DS :V3 (fn [^double v]
[(int (quot v 1.0))
(mod v 1.0)]))
(-> (tc/dataset {:x [1] :y [[2 3 9 10 11 22 33]]})
(tc/separate-column :y))
;; => _unnamed [1 8]:
;; | :x | :y-0 | :y-1 | :y-2 | :y-3 | :y-4 | :y-5 | :y-6 |
;; |---:|-----:|-----:|-----:|-----:|-----:|-----:|-----:|
;; | 1 | 2 | 3 | 9 | 10 | 11 | 22 | 33 |
(-> (tc/dataset {:x [1] :y [[2 3 9 10 11 22 33]]})
(tc/separate-column :y reverse))
;; => _unnamed [1 8]:
;; | :x | :y-0 | :y-1 | :y-2 | :y-3 | :y-4 | :y-5 | :y-6 |
;; |---:|-----:|-----:|-----:|-----:|-----:|-----:|-----:|
;; | 1 | 33 | 22 | 11 | 10 | 9 | 3 | 2 |
(-> (tc/dataset {:x [1] :y [[2 3 9 10 11 22 33]]})
(tc/separate-column :y (fn [input]
(zipmap "somenames" input))))
;; => _unnamed [1 7]:
;; | :x | a | s | e | m | n | o |
;; |---:|---:|--:|---:|---:|---:|--:|
;; | 1 | 22 | 2 | 10 | 33 | 11 | 3 |
;;
(let [col-names (map (partial str "row-") (range 10))]
(-> (tc/dataset {:x (range 10)
:y (range 100 110)
:z (seq "abcdefghij")})
(tc/rows)
(->> (zipmap col-names))
(tc/dataset)
(tc/select-columns col-names)))
;; => _unnamed [3 10]:
;; | row-0 | row-1 | row-2 | row-3 | row-4 | row-5 | row-6 | row-7 | row-8 | row-9 |
;; |-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|
;; | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
;; | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 |
;; | a | b | c | d | e | f | g | h | i | j |
(defonce stocks (tc/dataset "https://raw.githubusercontent.com/techascent/tech.ml.dataset/master/test/data/stocks.csv" {:key-fn keyword}))
(def price-index (-> (->> (stocks :price)
(map-indexed vector)
(group-by second))
(update-vals (partial map first))
(java.util.TreeMap.)))
;; selection
(-> stocks
(tc/select-rows (->> (.subMap price-index 10.0 true 20.0 false) ;; select range <10,20)
(.values) ;; get indices
(mapcat identity))))
;; => https://raw.githubusercontent.com/techascent/tech.ml.dataset/master/test/data/stocks.csv [61 3]:
;; | :symbol | :date | :price |
;; |---------|------------|-------:|
;; | AMZN | 2001-02-01 | 10.19 |
;; | AMZN | 2001-03-01 | 10.23 |
;; | AAPL | 2003-09-01 | 10.36 |
;; | AAPL | 2003-11-01 | 10.45 |
;; | AAPL | 2003-07-01 | 10.54 |
;; | AAPL | 2001-11-01 | 10.65 |
;; | AAPL | 2003-12-01 | 10.69 |
;; | AAPL | 2001-01-01 | 10.81 |
;; | AMZN | 2001-12-01 | 10.82 |
;; | AAPL | 2002-02-01 | 10.85 |
;; | ... | ... | ... |
;; | AMZN | 2002-12-01 | 18.89 |
;; | MSFT | 2008-12-01 | 18.91 |
;; | MSFT | 2003-01-01 | 19.31 |
;; | MSFT | 2003-02-01 | 19.34 |
;; | AMZN | 2002-10-01 | 19.36 |
;; | AAPL | 2004-09-01 | 19.38 |
;; | MSFT | 2002-07-01 | 19.52 |
;; | MSFT | 2008-11-01 | 19.66 |
;; | MSFT | 2003-03-01 | 19.76 |
;; | MSFT | 2009-04-01 | 19.84 |
;; | MSFT | 2002-08-01 | 19.97 |
(tc/aggregate-columns stocks count)
(ds/descriptive-stats stocks)
;; the exception around `tech.v3.dataset.format-sequence/formatter`
(def stats (ds/descriptive-stats stocks))
(seq stats)
;; => ([:col-name #tech.v3.dataset.column<keyword>[3]
;; :col-name
;; [:date, :price, :symbol]]
;; [:datatype #tech.v3.dataset.column<keyword>[3]
;; :datatype
;; [:packed-local-date, :float64, :string]]
;; [:n-valid #tech.v3.dataset.column<int64>[3]
;; :n-valid
;; [560, 560, 560]]
;; [:n-missing #tech.v3.dataset.column<int64>[3]
;; :n-missing
;; [0, 0, 0]]
;; [:min #tech.v3.dataset.column<object>[3]
;; :min
;; [2000-01-01, 5.970, ]]
;; [:mean #tech.v3.dataset.column<object>[3]
;; :mean
;; [2005-05-12, 100.7, ]]
;; [:mode #tech.v3.dataset.column<string>[3]
;; :mode
;; [MSFT]]
;; [:max #tech.v3.dataset.column<object>[3]
;; :max
;; [2010-03-01, 707.0, ]]
;; [:standard-deviation #tech.v3.dataset.column<float64>[3]
;; :standard-deviation
;; [9.250E+10, 132.6, ]]
;; [:skew #tech.v3.dataset.column<float64>[3]
;; :skew
;; [-0.1389, 2.413, ]]
;; [:first #tech.v3.dataset.column<object>[3]
;; :first
;; [2000-01-01, 39.81, MSFT]]
;; [:last #tech.v3.dataset.column<object>[3]
;; :last
;; [2010-03-01, 223.0, AAPL]])
;;
(tc/by-rank DS :V3 zero?) ;; most V3 values
(tc/by-rank DS :V3 zero? {:desc? false}) ;; least V3 values
(tc/by-rank DS :V3 zero? {:desc? false}) ;; least V3 values
(tc/by-rank DS [:V1 :V3] zero? {:desc? false})
(defonce flights (tc/dataset "https://raw.githubusercontent.com/Rdatatable/data.table/master/vignettes/flights14.csv"))
(tc/select-rows flights #(> (get % "dep_delay") 1000))
;; => https://raw.githubusercontent.com/Rdatatable/data.table/master/vignettes/flights14.csv [8 11]:
;; | year | month | day | dep_delay | arr_delay | carrier | origin | dest | air_time | distance | hour |
;; |-----:|------:|----:|----------:|----------:|---------|--------|------|---------:|---------:|-----:|
;; | 2014 | 2 | 15 | 1003 | 994 | DL | JFK | DEN | 242 | 1626 | 12 |
;; | 2014 | 2 | 21 | 1014 | 1007 | DL | JFK | MCO | 139 | 944 | 8 |
;; | 2014 | 4 | 15 | 1241 | 1223 | AA | JFK | BOS | 39 | 187 | 13 |
;; | 2014 | 6 | 13 | 1071 | 1064 | AA | EWR | DFW | 175 | 1372 | 10 |
;; | 2014 | 6 | 16 | 1022 | 1073 | AA | EWR | DFW | 178 | 1372 | 7 |
;; | 2014 | 7 | 14 | 1087 | 1090 | DL | EWR | ATL | 97 | 746 | 8 |
;; | 2014 | 9 | 12 | 1056 | 1115 | AA | EWR | DFW | 198 | 1372 | 6 |
;; | 2014 | 10 | 4 | 1498 | 1494 | AA | EWR | DFW | 200 | 1372 | 7 |
(tc/select-rows flights #(> (get % "dep_delay") 1000) {:result-type :as-indexes})
;; => (32306 37131 82591 131877 134039 158830 211512 230042)
(tc/select-rows flights '(32306 37131 82591 131877 134039 158830 211512 230042))
;; => https://raw.githubusercontent.com/Rdatatable/data.table/master/vignettes/flights14.csv [8 11]:
;; | year | month | day | dep_delay | arr_delay | carrier | origin | dest | air_time | distance | hour |
;; |-----:|------:|----:|----------:|----------:|---------|--------|------|---------:|---------:|-----:|
;; | 2014 | 2 | 15 | 1003 | 994 | DL | JFK | DEN | 242 | 1626 | 12 |
;; | 2014 | 2 | 21 | 1014 | 1007 | DL | JFK | MCO | 139 | 944 | 8 |
;; | 2014 | 4 | 15 | 1241 | 1223 | AA | JFK | BOS | 39 | 187 | 13 |
;; | 2014 | 6 | 13 | 1071 | 1064 | AA | EWR | DFW | 175 | 1372 | 10 |
;; | 2014 | 6 | 16 | 1022 | 1073 | AA | EWR | DFW | 178 | 1372 | 7 |
;; | 2014 | 7 | 14 | 1087 | 1090 | DL | EWR | ATL | 97 | 746 | 8 |
;; | 2014 | 9 | 12 | 1056 | 1115 | AA | EWR | DFW | 198 | 1372 | 6 |
;; | 2014 | 10 | 4 | 1498 | 1494 | AA | EWR | DFW | 200 | 1372 | 7 |
(tc/select-rows flights #(> (get % "dep_delay") 1000) {:pre {:mean #(dfn/mean (get % "dep_delay"))}})
(->> flights
(ds/mapseq-reader)
(aop/argfilter (comp boolean (fn [row] (and (= (get row "origin") "JFK")
(= (get row "month") 6))))))
;;
(tc/aggregate DS #(reduce + (% :V2)))
(tc/aggregate DS {:sum-of-V2 #(reduce + (% :V2))})
(tc/aggregate DS #(take 5 (% :V2)))
(tc/aggregate DS [#(take 3 (% :V2))
(fn [ds] {:sum-v1 (reduce + (ds :V1))
:prod-v3 (reduce * (ds :V3))})] {:default-column-name-prefix "V2-value"})
(require '[tech.v3.dataset :as ds])
(require '[tech.v3.datatype.datetime :as dtype-dt])
(def stocks' (-> stocks
(ds/update-column :date #(dtype-dt/datetime->epoch :epoch-days %))))
(require '[tech.v3.dataset.reductions :as ds-reduce])
(ds-reduce/group-by-column-agg
:symbol
{
:something (fn [a b] a b)
:price-avg (ds-reduce/mean :price)
:price-sum (ds-reduce/sum :price)
:price-med (ds-reduce/prob-median :price)}
(repeat 3 stocks'))
(def DSm2 (tc/dataset {:a [nil nil nil 1.0 2 nil nil nil nil nil 4 nil 11 nil nil]
:b [2 2 2 nil nil nil nil nil nil 13 nil 3 4 5 5]}))
DSm2
;; => _unnamed [15 2]:
;; | :a | :b |
;; |-----:|---:|
;; | | 2 |
;; | | 2 |
;; | | 2 |
;; | 1.0 | |
;; | 2.0 | |
;; | | |
;; | | |
;; | | |
;; | | |
;; | | 13 |
;; | 4.0 | |
;; | | 3 |
;; | 11.0 | 4 |
;; | | 5 |
;; | | 5 |
;; indexes of missing values
(col/missing (DSm2 :a)) ;; => {0,1,2,5,6,7,8,9,11,13,14}
(col/missing (DSm2 :b)) ;; => {3,4,5,6,7,8,10}
(class (col/missing (DSm2 :a))) ;; => org.roaringbitmap.RoaringBitmap
;; index of the nearest non-missing value in column `:a` starting from 0
(.nextAbsentValue (col/missing (DSm2 :a)) 0) ;; => 3
;; there is no previous non-missing
(.previousAbsentValue (col/missing (DSm2 :a)) 0) ;; => -1
;; replace some missing values by hand
(tc/replace-missing DSm2 :a :value {0 100 1 -100 14 -1000})
;; => _unnamed [15 2]:
;; | :a | :b |
;; |--------:|---:|
;; | 100.0 | 2 |
;; | -100.0 | 2 |
;; | | 2 |
;; | 1.0 | |
;; | 2.0 | |
;; | | |
;; | | |
;; | | |
;; | | |
;; | | 13 |
;; | 4.0 | |
;; | | 3 |
;; | 11.0 | 4 |
;; | | 5 |
;; | -1000.0 | 5 |
;;
(let [ds (ds/->dataset {:foo (range 0 5)
:bar (repeatedly #(rand-int 100))
:baz (repeatedly #(rand-int 100))})]
(ds/add-or-update-column ds :quz (apply col/column-map
(fn [foo bar baz]
(if (zero? (mod (+ foo bar baz) 7)) "mod 7" "not mod 7"))
nil (ds/columns ds))))
(let [ds (ds/->dataset {:foo (range 0 5)
:bar (repeatedly #(rand-int 100))})]
(ds/add-or-update-column ds :quz (apply col/column-map
(fn [foo bar]
(if (zero? (mod (+ foo bar) 7)) "mod 7" "not mod 7"))
nil (ds/columns ds))))
;; => _unnamed [5 3]:
;; | :foo | :bar | :quz |
;; |-----:|-----:|-----------|
;; | 0 | 63 | mod 7 |
;; | 1 | 20 | mod 7 |
;; | 2 | 15 | not mod 7 |
;; | 3 | 85 | not mod 7 |
;; | 4 | 46 | not mod 7 |
;;
(def ds (ds/->dataset [{"DestinationName" "CZ_1", "ProductName" "FG_1", "Quantity" 100, "Allocated-Qty" 0, "SourceName" "DC_1", :ratio 0.5} {"DestinationName" "CZ_1", "ProductName" "FG_1", "Quantity" 100, "Allocated-Qty" 0, "SourceName" "DC_2", :ratio 0.5}]))
;; => _unnamed [2 6]:
;; | DestinationName | ProductName | Quantity | Allocated-Qty | SourceName | :ratio |
;; |-----------------|-------------|---------:|--------------:|------------|-------:|
;; | CZ_1 | FG_1 | 100 | 0 | DC_1 | 0.5 |
;; | CZ_1 | FG_1 | 100 | 0 | DC_2 | 0.5 |
(ds/concat ds ds)
;; => _unnamed [4 6]:
;; | DestinationName | ProductName | Quantity | Allocated-Qty | SourceName | :ratio |
;; |-----------------|-------------|---------:|--------------:|------------|-------:|
;; | CZ_1 | FG_1 | 100 | 0 | DC_1 | 0.5 |
;; | CZ_1 | FG_1 | 100 | 0 | DC_2 | 0.5 |
;; | CZ_1 | FG_1 | 100 | 0 | DC_1 | 0.5 |
;; | CZ_1 | FG_1 | 100 | 0 | DC_2 | 0.5 |
(ds/concat-copying ds ds)
;; => _unnamed [4 6]:
;; | DestinationName | ProductName | Quantity | Allocated-Qty | SourceName | :ratio |
;; |-----------------|-------------|---------:|--------------:|------------|-------:|
;; | CZ_1 | FG_1 | 100 | 0 | DC_1 | 0.5 |
;; | CZ_1 | FG_1 | 100 | 0 | DC_2 | 0.5 |
;; | CZ_1 | FG_1 | 100 | 0 | DC_1 | 0.5 |
;; | CZ_1 | FG_1 | 100 | 0 | DC_2 | 0.5 |
;;
(def joinrds (tc/dataset {:a (range 1 7)
:b (range 7 13)
:c (range 13 19)
:ID (seq "bbbaac")
:d ["hello" "hello" "hello" "water" "water" "world"]}))
;; => _unnamed [6 5]:
;; | :a | :b | :c | :ID | :d |
;; |---:|---:|---:|-----|-------|
;; | 1 | 7 | 13 | b | hello |
;; | 2 | 8 | 14 | b | hello |
;; | 3 | 9 | 15 | b | hello |
;; | 4 | 10 | 16 | a | water |
;; | 5 | 11 | 17 | a | water |
;; | 6 | 12 | 18 | c | world |
(-> joinrds
(tc/group-by [:ID :d])
(tc/ungroup))
;; => _unnamed [6 5]:
;; | :a | :b | :c | :ID | :d |
;; |---:|---:|---:|-----|-------|
;; | 1 | 7 | 13 | b | hello |
;; | 2 | 8 | 14 | b | hello |
;; | 3 | 9 | 15 | b | hello |
;; | 4 | 10 | 16 | a | water |
;; | 5 | 11 | 17 | a | water |
;; | 6 | 12 | 18 | c | world |
(-> joinrds
(tc/group-by [:ID :d])
(tc/ungroup {:add-group-id-as-column :blah}))
;; => _unnamed [6 6]:
;; | :blah | :a | :b | :c | :ID | :d |
;; |------:|---:|---:|---:|-----|-------|
;; | 0 | 1 | 7 | 13 | b | hello |
;; | 0 | 2 | 8 | 14 | b | hello |
;; | 0 | 3 | 9 | 15 | b | hello |
;; | 1 | 4 | 10 | 16 | a | water |
;; | 1 | 5 | 11 | 17 | a | water |
;; | 2 | 6 | 12 | 18 | c | world |
(-> joinrds
(tc/group-by [:ID :d])
(tc/unmark-group))
;; => _unnamed [3 3]:
;; | :name | :group-id | :data |
;; |----------------------|----------:|------------------------------------|
;; | {:ID \b, :d "hello"} | 0 | Group: {:ID \b, :d "hello"} [3 5]: |
;; | {:ID \a, :d "water"} | 1 | Group: {:ID \a, :d "water"} [2 5]: |
;; | {:ID \c, :d "world"} | 2 | Group: {:ID \c, :d "world"} [1 5]: |
(-> joinrds
(tc/group-by [:ID :d])
(tc/ungroup {:add-group-as-column :blah
:separate? false}))
;; => _unnamed [6 6]:
;; | :blah | :a | :b | :c | :ID | :d |
;; |----------------------|---:|---:|---:|-----|-------|
;; | {:ID \b, :d "hello"} | 1 | 7 | 13 | b | hello |
;; | {:ID \b, :d "hello"} | 2 | 8 | 14 | b | hello |
;; | {:ID \b, :d "hello"} | 3 | 9 | 15 | b | hello |
;; | {:ID \a, :d "water"} | 4 | 10 | 16 | a | water |
;; | {:ID \a, :d "water"} | 5 | 11 | 17 | a | water |
;; | {:ID \c, :d "world"} | 6 | 12 | 18 | c | world |
(-> joinrds
(tc/group-by :ID)
(tc/ungroup {:add-group-as-column :blah}))
;; => _unnamed [6 6]:
;; | :blah | :a | :b | :c | :ID | :d |
;; |-------|---:|---:|---:|-----|-------|
;; | b | 1 | 7 | 13 | b | hello |
;; | b | 2 | 8 | 14 | b | hello |
;; | b | 3 | 9 | 15 | b | hello |
;; | a | 4 | 10 | 16 | a | water |
;; | a | 5 | 11 | 17 | a | water |
;; | c | 6 | 12 | 18 | c | world |
(-> joinrds
(tc/group-by (juxt :ID :d))
(tc/unmark-group))
;; => _unnamed [3 3]:
;; | :name | :group-id | :data |
;; |--------------|----------:|----------------------------|
;; | [\b "hello"] | 0 | Group: [\b "hello"] [3 5]: |
;; | [\a "water"] | 1 | Group: [\a "water"] [2 5]: |
;; | [\c "world"] | 2 | Group: [\c "world"] [1 5]: |
(-> joinrds
(tc/group-by (juxt :ID :d))
(tc/ungroup {:add-group-as-column :blah}))
;; => _unnamed [6 7]:
;; | :blah-0 | :blah-1 | :a | :b | :c | :ID | :d |
;; |---------|---------|---:|---:|---:|-----|-------|
;; | b | hello | 1 | 7 | 13 | b | hello |
;; | b | hello | 2 | 8 | 14 | b | hello |
;; | b | hello | 3 | 9 | 15 | b | hello |
;; | a | water | 4 | 10 | 16 | a | water |
;; | a | water | 5 | 11 | 17 | a | water |
;; | c | world | 6 | 12 | 18 | c | world |
(-> joinrds
(tc/group-by (juxt :ID :d))
(tc/ungroup {:add-group-as-column :blah
:separate? false}))
;; => _unnamed [6 6]:
;; | :blah | :a | :b | :c | :ID | :d |
;; |--------------|---:|---:|---:|-----|-------|
;; | [\b "hello"] | 1 | 7 | 13 | b | hello |
;; | [\b "hello"] | 2 | 8 | 14 | b | hello |
;; | [\b "hello"] | 3 | 9 | 15 | b | hello |
;; | [\a "water"] | 4 | 10 | 16 | a | water |
;; | [\a "water"] | 5 | 11 | 17 | a | water |
;; | [\c "world"] | 6 | 12 | 18 | c | world |
(-> joinrds
(tc/group-by [:ID :d])
(tc/aggregate-columns [:a :b :c] dfn/mean))
;; => _unnamed [3 5]:
;; | :ID | :d | :a | :b | :c |
;; |-----|-------|----:|-----:|-----:|
;; | b | hello | 2.0 | 8.0 | 14.0 |
;; | a | water | 4.5 | 10.5 | 16.5 |
;; | c | world | 6.0 | 12.0 | 18.0 |
(-> joinrds
(tc/group-by [:ID :d])
(tc/aggregate-columns [:a :b :c] dfn/mean {:separate? false}))
;; => _unnamed [3 4]:
;; | :$group-name | :a | :b | :c |
;; |----------------------|----:|-----:|-----:|
;; | {:ID \b, :d "hello"} | 2.0 | 8.0 | 14.0 |
;; | {:ID \a, :d "water"} | 4.5 | 10.5 | 16.5 |
;; | {:ID \c, :d "world"} | 6.0 | 12.0 | 18.0 |
;; #108
(let [qids ["AGYSUB" "LOC" "AGELVL" "EDLVL"]
per-val (-> (tc/dataset "per-val.csv.gz")
(tc/set-dataset-name "per-val"))
per-qid (-> (tc/dataset "per-qid.csv.gz")
(tc/set-dataset-name "per-qid"))]
(-> (tc/left-join per-val per-qid qids)
(tc/select-rows (fn [row]
(or (not= (get row "per-qid.AGYSUB") (get row "AGYSUB"))
(not= (get row "per-qid.LOC") (get row "LOC"))
(not= (get row "per-qid.AGELVL") (get row "AGELVL"))
(not= (get row "per-qid.EDLVL") (get row "EDLVL")))))))
(ds/select-rows (ds/->dataset []) [0])
;; => _unnamed [0 0]
;;
(get-in (read-string (slurp "deps.edn")) [:deps 'techascent/tech.ml.dataset :mvn/version])
;; => "7.000-beta-50"
(nth (read-string (slurp "project.clj")) 2)
(def ds1 (tc/dataset {:a [1 2 1 2 3 4 nil nil 4]
:b (range 101 110)
:c (map str "abs tract")}))
(def ds2 (tc/dataset {:a [nil 1 2 5 4 3 2 1 nil]
:b (range 110 101 -1)
:c (map str "datatable")
:d (symbol "X")
:e [3 4 5 6 7 nil 8 1 1]}))
(tc/left-join ds1 ds2 :b {:hashing (fn [[v]] (mod v 5))})
(defn last-char
[ds]
(->> (ds/value-reader ds)
(map (comp last str first))))
(last-char ds1)
;; => (\1 \2 \3 \4 \5 \6 \7 \8 \9)
(last-char ds2)