mirror of
https://github.com/multipleof4/lynchmark.git
synced 2026-01-14 00:27:55 +00:00
Docs: Update benchmark results
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@@ -6,9 +6,14 @@ export async function createStreamVisualizer(asyncIterable, options) {
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let prevEma;
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for await (const { timestamp, value } of asyncIterable) {
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const ema = prevEma === undefined ? value : alpha * value + (1 - alpha) * prevEma;
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const ema = prevEma === undefined
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? value
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: alpha * value + (1 - alpha) * prevEma;
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data.push({ timestamp, value, ema });
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if (data.length > maxPoints) data.shift();
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prevEma = ema;
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}
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@@ -11,42 +11,32 @@ async function createStreamVisualizer(asyncIterable, {
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} = await import('d3');
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const data = [];
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let prevEma = null;
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let prevEma;
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for await (const {
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timestamp,
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value
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} of asyncIterable) {
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const ema = prevEma === null ?
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for await (const { value, timestamp } of asyncIterable) {
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prevEma = (prevEma === undefined) ?
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value :
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alpha * value + (1 - alpha) * prevEma;
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data.push({
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timestamp,
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value,
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ema
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ema: prevEma
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});
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prevEma = ema;
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if (data.length > maxPoints) {
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data.shift();
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}
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}
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if (data.length < 2) {
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if (!data.length) {
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return {
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data,
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path: ''
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};
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}
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const x = scaleLinear()
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.domain([data[0].timestamp, data.at(-1).timestamp])
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.range([0, width]);
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const y = scaleLinear()
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.domain(yDomain)
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.range([height, 0]);
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const x = scaleLinear([data[0].timestamp, data.at(-1).timestamp], [0, width]);
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const y = scaleLinear(yDomain, [height, 0]);
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const path = line()
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.x(d => x(d.timestamp))
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@@ -54,7 +44,7 @@ async function createStreamVisualizer(asyncIterable, {
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return {
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data,
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path
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path: path ?? ''
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};
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}
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export default createStreamVisualizer;
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@@ -0,0 +1,32 @@
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export const createStreamVisualizer = async (
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stream,
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{ maxPoints, alpha, width, height, yDomain }
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) => {
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const { scaleLinear, line } = await import('https://cdn.jsdelivr.net/npm/d3@7/+esm');
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const data = [];
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let prev = null;
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for await (const { timestamp, value } of stream) {
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const ema = prev == null ? value : alpha * value + (1 - alpha) * prev;
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prev = ema;
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data.push({ timestamp, value, ema });
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if (data.length > maxPoints) data.shift();
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}
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if (!data.length) return { data, path: '' };
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const x = scaleLinear()
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.domain([data[0].timestamp, data[data.length - 1].timestamp])
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.range([0, width]);
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const y = scaleLinear()
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.domain(yDomain)
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.range([height, 0]);
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const curve = line()
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.x(d => x(d.timestamp))
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.y(d => y(d.ema));
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return { data, path: curve(data) };
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};
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export default createStreamVisualizer;
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@@ -1,9 +1,68 @@
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export async function createStreamVisualizer(i,o){
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const d=await import('d3'),{maxPoints:m,alpha:a,width:w,height:h,yDomain:y}=o,p=[],c=d.scaleLinear,f=d.line;
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let e;
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for await(const{timestamp:t,value:v}of i){e=e===undefined?v:a*v+(1-a)*e;p.push({timestamp:t,value:v,ema:e});p.length>m&&p.shift()}
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if(!p.length)return{data:[],path:''};
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const x=c().domain([p[0].timestamp,p.at(-1).timestamp]).range([0,w]),z=c().domain(y).range([h,0]),g=f().x(d=>x(d.timestamp)).y(d=>z(d.ema)).curve(d.curveLinear);
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return{data:p,path:g(p)}
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async function createStreamVisualizer(asyncIterable, options) {
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const { maxPoints, alpha, width, height, yDomain } = options;
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const d3 = await import('https://cdn.jsdelivr.net/npm/d3@7/+esm');
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if (!Number.isFinite(maxPoints) || maxPoints < 1) {
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throw new Error('maxPoints must be a positive integer');
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}
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if (!Number.isFinite(alpha) || alpha < 0 || alpha > 1) {
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throw new Error('alpha must be between 0 and 1');
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}
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if (!Array.isArray(yDomain) || yDomain.length !== 2) {
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throw new Error('yDomain must be an array of [min, max]');
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}
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if (!Number.isFinite(width) || width <= 0) {
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throw new Error('width must be a positive number');
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}
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if (!Number.isFinite(height) || height <= 0) {
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throw new Error('height must be a positive number');
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}
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const data = [];
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let prevEma = null;
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let itemCount = 0;
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for await (const value of asyncIterable) {
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if (!Number.isFinite(value)) {
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throw new Error('Stream must yield finite numeric values');
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}
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const timestamp = Date.now();
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const ema = prevEma === null ? value : alpha * value + (1 - alpha) * prevEma;
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const point = { timestamp, value, ema };
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if (itemCount < maxPoints) {
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data.push(point);
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itemCount++;
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} else {
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data.shift();
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data.push(point);
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}
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prevEma = ema;
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}
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let path = '';
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if (data.length > 0) {
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const xDomain = data.length > 1 ? [data[0].timestamp, data[data.length - 1].timestamp] : [data[0].timestamp - 1000, data[0].timestamp];
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const xScale = d3.scaleLinear()
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.domain(xDomain)
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.range([0, width]);
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const yScale = d3.scaleLinear()
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.domain(yDomain)
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.range([height, 0]);
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const line = d3.line()
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.x(d => xScale(d.timestamp))
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.y(d => yScale(d.ema))
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.curve(d3.curveMonotoneX)
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.defined(d => Number.isFinite(d.ema));
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path = line(data) || '';
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}
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return { data, path };
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}
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export default createStreamVisualizer;
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@@ -1,23 +0,0 @@
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export async function createStreamVisualizer(iter, o) {
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const { maxPoints, alpha, width, height, yDomain } = o
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const d3 = await import('https://cdn.jsdelivr.net/npm/d3@7/+esm')
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const data = []
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let ema
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for await (const { timestamp, value } of iter) {
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ema = ema == null ? value : alpha * value + (1 - alpha) * ema
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data.push({ timestamp, value, ema })
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if (data.length > maxPoints) data.shift()
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}
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const xs = d3.scaleLinear()
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.domain([data[0].timestamp, data[data.length - 1].timestamp])
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.range([0, width])
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const ys = d3.scaleLinear()
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.domain(yDomain)
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.range([height, 0])
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const line = d3.line()
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.x(d => xs(d.timestamp))
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.y(d => ys(d.ema))
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const path = line(data) || ''
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return { data, path }
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}
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export default createStreamVisualizer;
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@@ -1,23 +1,18 @@
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async function createStreamVisualizer(iterable, {
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maxPoints = 100,
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alpha = .5,
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width = 300,
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height = 150,
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yDomain = [0, 1]
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} = {}) {
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const { scaleLinear, line } = await import('https://cdn.jsdelivr.net/npm/d3@7/+esm')
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const data = []
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const createStreamVisualizer=async(iter,o)=>{
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const{maxPoints:m,alpha:a,width:w,height:h,yDomain:Y}=o
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const data=[]
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let ema
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for await (const point of iterable) {
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const { timestamp, value } = point
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ema = ema == null ? value : alpha * value + (1 - alpha) * ema
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data.push({ timestamp, value, ema })
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data.length > maxPoints && data.shift()
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for await(const {timestamp:t,value:v} of iter){
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const d=new Date(t)
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ema=ema==null?v:a*v+(1-a)*ema
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data.push({timestamp:d,value:v,ema})
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if(data.length>m)data.shift()
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}
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if (!data.length) return { data, path: '' }
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const x = scaleLinear().domain([data[0].timestamp, data.at(-1).timestamp]).range([0, width])
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const y = scaleLinear().domain(yDomain).range([height, 0])
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const path = line().x(d => x(d.timestamp)).y(d => y(d.ema))(data) || ''
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return { data, path }
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if(!data.length)return{data,path:''}
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const{scaleTime,scaleLinear,line}=await import('https://cdn.skypack.dev/d3@7?min')
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const x=scaleTime().domain([data[0].timestamp,data[data.length-1].timestamp]).range([0,w])
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const y=scaleLinear().domain(Y).range([h,0])
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const path=line().x(d=>x(d.timestamp)).y(d=>y(d.ema))(data)||''
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return{data,path}
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}
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export default createStreamVisualizer;
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@@ -1,26 +0,0 @@
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async function createStreamVisualizer(asyncIterable, { maxPoints = 100, alpha = 0.3, width = 800, height = 400, yDomain = [-1, 1] } = {}) {
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const { select, scaleLinear, scaleTime, line } = await import('https://cdn.skypack.dev/d3@7');
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let data = [], prevEma;
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for await (const { timestamp, value } of asyncIterable) {
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const ema = prevEma === undefined ? value : alpha * value + (1 - alpha) * prevEma;
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prevEma = ema;
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data.push({ timestamp, value, ema });
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if (data.length > maxPoints) data.shift();
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}
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if (!data.length) return { data: [], path: '' };
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const x = scaleLinear().domain([data[0].timestamp, data[data.length - 1].timestamp]).range([0, width]);
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const y = scaleLinear().domain(yDomain).range([height, 0]);
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const lineGen = line()
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.x(d => x(d.timestamp))
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.y(d => y(d.ema))
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.curve(select.curveMonotoneX);
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return { data, path: lineGen(data) };
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}
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export default createStreamVisualizer;
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@@ -1,16 +1,19 @@
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async function createStreamVisualizer(iter,opts){
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const{maxPoints:max,alpha,width,height,yDomain}=opts;
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let data=[],prev=null;
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for await(const i of iter){
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const ts=i.timestamp,v=i.value,e=prev==null?v:alpha*v+(1-alpha)*prev;
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prev=e;
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data.push({timestamp:ts,value:v,ema:e});
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if(data.length>max)data.shift();
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async function createStreamVisualizer(asyncIterable,options){
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const{maxPoints,alpha,width,height,yDomain}=options;
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const{scaleLinear:sl,line}=await import('https://cdn.skypack.dev/d3');
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let points=[];
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let prevEma=NaN;
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for await(const{timestamp,value}of asyncIterable){
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const ema=isNaN(prevEma)?value:alpha*value+(1-alpha)*prevEma;
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points.push({timestamp,value,ema});
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prevEma=ema;
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if(points.length>maxPoints)points.shift();
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}
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const{scaleLinear,line}=await import('https://cdn.skypack.dev/d3');
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if(!data.length)return{data,path:''};
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const x=scaleLinear().domain([data[0].timestamp,data.at(-1).timestamp]).range([0,width]);
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const y=scaleLinear().domain(yDomain).range([height,0]);
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return{data,line().x(d=>x(d.timestamp)).y(d=>y(d.ema))(data)};
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if(!points.length)return{data:[],path:''};
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const xDomain=[points[0].timestamp,points[points.length-1].timestamp];
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const x=sl().domain(xDomain).range([0,width]);
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const y=sl().domain(yDomain).range([height,0]);
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const lineGen=line().x(d=>x(d.timestamp)).y(d=>y(d.ema));
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return{data:points,path:lineGen(points)};
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}
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export default createStreamVisualizer;
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