new library: Frequency Distribution Analysis, separated from "Bigger Data"

HISTORY.md

@@ -1,5 +1,8 @@
 # Snap<em>!</em> (BYOB) History
 
+###2018-11-02
+* new library: Frequency Distribution Analysis, separated from "Bigger Data"
+
 ## v4.2.2.4
 ###2018-10-29
 * Blocks: fixed #2234 (display all reachable local variables in drop-down menu)

libraries/LIBRARIES

@@ -18,6 +18,7 @@ animation_module.xml	Animation	glide, grow and rotate using easing functions.
 pixel_module.xml	Pixels	manipulate costumes pixel-wise.
 audioComp_module.xml	Audio Comp	analyze, manipulate and generate sound samples.
 atomic_HOFs_module.xml	"Bigger" Data	[EXPERIMENTAL] crunch large lists very fast
+frequency_distribution_module.xml	Frequency Distribution Analysis	[EXPERIMENTAL] analyze data for frequency distribution
 make-variables.xml	create variables in program	declare global or sprite-local variables in a script
 json.xml	Deal with JSON data	Turn JSON strings into lists with the listify block, then retrieve data out of them by using the value at key block.
 parallel_module.xml	Parallelization	Run several scripts in parallel and wait until all are done.

libraries/atomic_HOFs_module.xml

@@ -1 +1 @@
-<blocks app="Snap! 4.2, http://snap.berkeley.edu" version="1"><block-definition s="$flash map %&apos;fn&apos; over %&apos;data&apos;" type="reporter" category="lists"><header></header><code></code><translations></translations><inputs><input type="%repRing"></input><input type="%l"></input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportJSFunction"><list><l>fn</l><l>data</l><l>proc</l></list><l>return proc.reportAtomicMap(fn, data);</l></block><list><block var="fn"/><block var="data"/></list></block></block></script></block-definition><block-definition s="$flash keep %&apos;test&apos; from %&apos;data&apos;" type="reporter" category="lists"><header></header><code></code><translations></translations><inputs><input type="%predRing"></input><input type="%l"></input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportJSFunction"><list><l>fn</l><l>data</l><l>proc</l></list><l>return proc.reportAtomicKeep(fn, data);</l></block><list><block var="test"/><block var="data"/></list></block></block></script></block-definition><block-definition s="$flash combine %&apos;fn&apos; with %&apos;data&apos;" type="reporter" category="lists"><header></header><code></code><translations></translations><inputs><input type="%repRing"></input><input type="%l"></input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportJSFunction"><list><l>fn</l><l>data</l><l>proc</l></list><l>return proc.reportAtomicCombine(fn, data);</l></block><list><block var="fn"/><block var="data"/></list></block></block></script></block-definition><block-definition s="$flash sort %&apos;data&apos; by %&apos;fn&apos;" type="reporter" category="lists"><header></header><code></code><translations></translations><inputs><input type="%l"></input><input type="%predRing"></input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportJSFunction"><list><l>data</l><l>fn</l><l>proc</l></list><l>return proc.reportAtomicSort(data, fn);</l></block><list><block var="data"/><block var="fn"/></list></block></block></script></block-definition><block-definition s="$flash reverse %&apos;list&apos;" type="reporter" category="lists"><header></header><code></code><translations></translations><inputs><input type="%l"></input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportJSFunction"><list><l>list</l></list><l>return new List(list.asArray().slice().reverse());</l></block><list><block var="list"/></list></block></block></script></block-definition><block-definition s="$flash analyze %&apos;data&apos;" type="reporter" category="lists"><comment x="0" y="0" w="149" collapsed="false">returns a frequency analysis of the argument list, represented as a two-column table, where the first column contains the unique values and the second column their occurrences</comment><header></header><code></code><translations></translations><inputs><input type="%l"></input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportJSFunction"><list><l>list</l></list><l>var dict = new Map(),&#xD;    result = [],&#xD;    data = list.asArray(),&#xD;    len = data.length,&#xD;    i;&#xD;for (i = 0; i &lt; len; i += 1) {&#xD;    if (dict.has(data[i])) {&#xD;        dict.set(data[i], dict.get(data[i]) + 1);&#xD;    } else {&#xD;        dict.set(data[i], 1);&#xD;    }&#xD;}&#xD;dict.forEach(function (value, key) {&#xD;    result.push(new List([key, value]));&#xD;});&#xD;return new List(result);</l></block><list><block var="data"/></list></block></block></script></block-definition><block-definition s="$flash group %&apos;data&apos; by %&apos;fn&apos;" type="reporter" category="lists"><header></header><code></code><translations></translations><inputs><input type="%l"></input><input type="%repRing"></input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportJSFunction"><list><l>data</l><l>fn</l><l>proc</l></list><l>return proc.reportAtomicGroup(data, fn);</l></block><list><block var="data"/><block var="fn"/></list></block></block></script></block-definition></blocks>
+<blocks app="Snap! 4.2, http://snap.berkeley.edu" version="1"><block-definition s="$flash map %&apos;fn&apos; over %&apos;data&apos;" type="reporter" category="lists"><header></header><code></code><translations></translations><inputs><input type="%repRing"></input><input type="%l"></input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportJSFunction"><list><l>fn</l><l>data</l><l>proc</l></list><l>return proc.reportAtomicMap(fn, data);</l></block><list><block var="fn"/><block var="data"/></list></block></block></script></block-definition><block-definition s="$flash keep %&apos;test&apos; from %&apos;data&apos;" type="reporter" category="lists"><header></header><code></code><translations></translations><inputs><input type="%predRing"></input><input type="%l"></input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportJSFunction"><list><l>fn</l><l>data</l><l>proc</l></list><l>return proc.reportAtomicKeep(fn, data);</l></block><list><block var="test"/><block var="data"/></list></block></block></script></block-definition><block-definition s="$flash combine %&apos;fn&apos; with %&apos;data&apos;" type="reporter" category="lists"><header></header><code></code><translations></translations><inputs><input type="%repRing"></input><input type="%l"></input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportJSFunction"><list><l>fn</l><l>data</l><l>proc</l></list><l>return proc.reportAtomicCombine(fn, data);</l></block><list><block var="fn"/><block var="data"/></list></block></block></script></block-definition><block-definition s="$flash sort %&apos;data&apos; by %&apos;fn&apos;" type="reporter" category="lists"><header></header><code></code><translations></translations><inputs><input type="%l"></input><input type="%predRing"></input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportJSFunction"><list><l>data</l><l>fn</l><l>proc</l></list><l>return proc.reportAtomicSort(data, fn);</l></block><list><block var="data"/><block var="fn"/></list></block></block></script></block-definition><block-definition s="$flash reverse %&apos;list&apos;" type="reporter" category="lists"><header></header><code></code><translations></translations><inputs><input type="%l"></input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportJSFunction"><list><l>list</l></list><l>return new List(list.asArray().slice().reverse());</l></block><list><block var="list"/></list></block></block></script></block-definition></blocks>

libraries/frequency_distribution_module.xml

@@ -0,0 +1 @@
+<blocks app="Snap! 4.2, http://snap.berkeley.edu" version="1"><block-definition s="$flash analyze %&apos;data&apos;" type="reporter" category="lists"><comment x="0" y="0" w="149" collapsed="false">returns a frequency analysis of the argument list, represented as a two-column table, where the first column contains the unique values and the second column their occurrences</comment><header></header><code></code><translations></translations><inputs><input type="%l"></input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportJSFunction"><list><l>list</l></list><l>var dict = new Map(),&#xD;    result = [],&#xD;    data = list.asArray(),&#xD;    len = data.length,&#xD;    i;&#xD;for (i = 0; i &lt; len; i += 1) {&#xD;    if (dict.has(data[i])) {&#xD;        dict.set(data[i], dict.get(data[i]) + 1);&#xD;    } else {&#xD;        dict.set(data[i], 1);&#xD;    }&#xD;}&#xD;dict.forEach(function (value, key) {&#xD;    result.push(new List([key, value]));&#xD;});&#xD;return new List(result);</l></block><list><block var="data"/></list></block></block></script></block-definition><block-definition s="$flash group %&apos;data&apos; by %&apos;fn&apos;" type="reporter" category="lists"><header></header><code></code><translations></translations><inputs><input type="%l"></input><input type="%repRing"></input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportJSFunction"><list><l>data</l><l>fn</l><l>proc</l></list><l>return proc.reportAtomicGroup(data, fn);</l></block><list><block var="data"/><block var="fn"/></list></block></block></script></block-definition></blocks>