preparing initial release

Author: alaa-eddine

demo/indicator.js

@@ -0,0 +1,55 @@
+async function indicator(tickerId, timeframe = '1w', periods = 500, stime, etime) {
+    const pineTS = new PineTS(PineTS.Provider.Binance, tickerId, timeframe, periods, stime, etime);
+
+    const { result, plots, marketData } = await pineTS.run((context) => {
+        // This is a PineTS port of "Squeeze Momentum Indicator" indicator by LazyBear
+        // List of all his indicators: https://www.tradingview.com/v/4IneGo8h/
+        const { close, high, low } = context.data;
+
+        const ta = context.ta;
+        const math = context.math;
+
+        const input = context.input;
+        const { plot, plotchar, nz, color } = context.core;
+
+        const length = input.int(20, 'BB Length');
+        const mult = input.float(2.0, 'BB MultFactor');
+        const lengthKC = input.int(20, 'KC Length');
+        const multKC = input.float(1.5, 'KC MultFactor');
+
+        const useTrueRange = input.bool(true, 'Use TrueRange (KC)');
+
+        // Calculate BB
+        let source = close;
+        const basis = ta.sma(source, length);
+        const dev = multKC * ta.stdev(source, length);
+        const upperBB = basis + dev;
+        const lowerBB = basis - dev;
+
+        // Calculate KC
+        const ma = ta.sma(source, lengthKC);
+        const range_1 = useTrueRange ? ta.tr : high - low;
+        const rangema = ta.sma(range_1, lengthKC);
+        const upperKC = ma + rangema * multKC;
+        const lowerKC = ma - rangema * multKC;
+
+        const sqzOn = lowerBB > lowerKC && upperBB < upperKC;
+        const sqzOff = lowerBB < lowerKC && upperBB > upperKC;
+        const noSqz = sqzOn == false && sqzOff == false;
+
+        const val = ta.linreg(
+            source - math.avg(math.avg(ta.highest(high, lengthKC), ta.lowest(low, lengthKC)), ta.sma(close, lengthKC)),
+            lengthKC,
+            0
+        );
+
+        const iff_1 = val > nz(val[1]) ? color.lime : color.green;
+        const iff_2 = val < nz(val[1]) ? color.red : color.maroon;
+        const bcolor = val > 0 ? iff_1 : iff_2;
+        const scolor = noSqz ? color.blue : sqzOn ? color.black : color.gray;
+        plot(val, 'Momentum', { color: bcolor, style: 'histogram', linewidth: 4 });
+        plot(0, 'Cross', { color: scolor, style: 'cross', linewidth: 2 });
+    });
+
+    return { result, plots, marketData };
+}

demo/instit-bias.js

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+async function instit_bias(
+  tickerId,
+  timeframe = "1w",
+  periods = 500,
+  stime,
+  etime
+) {
+  const pineTS = new PineTS(
+    PineTS.Provider.Binance,
+    tickerId,
+    timeframe,
+    periods,
+    stime,
+    etime
+  );
+
+  const { result, plots, marketData } = await pineTS.run((context) => {
+    const ema9 = ta.ema(close, 9);
+    const ema18 = ta.ema(close, 18);
+
+    const bull_bias = ema9 > ema18;
+    const bear_bias = ema9 < ema18;
+
+    plot(ema9, "EMA 9", { title: "EMA 9", color: "#2962FF", style: "line" });
+    plot(ema18, "EMA 18", { title: "EMA 18", color: "#FF6D00", style: "line" });
+    plot(bull_bias, "Bull Bias", {
+      title: "Bull Bias",
+      color: "#2962FF",
+      style: "background",
+    });
+
+    plot(bear_bias, "Bear Bias", {
+      title: "Bear Bias",
+      color: "#FF6D00",
+      style: "background",
+    });
+
+    //plot(val, 'Momentum', { color: bcolor, style: 'histogram', linewidth: 4 });
+    //plot(0, 'Cross', { color: scolor, style: 'cross', linewidth: 2 });
+  });
+
+  return { result, plots, marketData };
+}