신심리도 추가, 투자심리도 수정

frontend/src/utils/customIndicators.ts

@@ -113,7 +113,7 @@ export function calcVR(
   return { plot0: toPlotData(bars, vals) };
 }
 
-/** 심리도(업비트): N일 중 전일 대비 상승일 비율 × 100 */
+/** 심리도: N일 중 전일 대비 상승일 비율 × 100 */
 export function calcPsychological(
   bars: OHLCVBar[],
   params: Record<string, number | string | boolean>,
@@ -131,27 +131,53 @@ export function calcPsychological(
   return { plot0: toPlotData(bars, vals) };
 }
 
-/** @deprecated Psychological 사용 */
-export const calcNewPsychological = calcPsychological;
+/**
+ * 신심리도(업비트): [상승일수×상승폭비율 − 하락일수×하락폭비율] × 100 / N
+ * 상승폭비율 = 상승폭합 / (상승폭합+하락폭합)
+ */
+export function calcNewPsychological(
+  bars: OHLCVBar[],
+  params: Record<string, number | string | boolean>,
+): Record<string, PlotData> {
+  const period = Number(params.length ?? 10);
+  const closes = bars.map(b => b.close);
+  const vals = closes.map((_, i) => {
+    if (i < period) return NaN;
+    let upSize = 0;
+    let downSize = 0;
+    let upDay = 0;
+    let downDay = 0;
+    for (let j = i - period + 1; j <= i; j++) {
+      const diff = closes[j] - closes[j - 1];
+      if (diff > 0) {
+        upSize += diff;
+        upDay++;
+      } else if (diff < 0) {
+        downSize += -diff;
+        downDay++;
+      }
+    }
+    const total = upSize + downSize;
+    if (total === 0) return NaN;
+    return (upDay * (upSize / total) - downDay * (downSize / total)) * 100 / period;
+  });
+  return { plot0: toPlotData(bars, vals) };
+}
 
-/** 투자심리도(업비트): N일 중 상승일 거래량 비중 × 100 */
+/** 투자심리도(업비트): N일 중 전일 대비 상승일 비율 × 100 */
 export function calcInvestPsychological(
   bars: OHLCVBar[],
   params: Record<string, number | string | boolean>,
 ): Record<string, PlotData> {
   const period = Number(params.length ?? 10);
   const closes = bars.map(b => b.close);
-  const volumes = bars.map(b => b.volume);
   const vals = closes.map((_, i) => {
     if (i < period) return NaN;
-    let upVol = 0;
-    let total = 0;
+    let up = 0;
     for (let j = i - period + 1; j <= i; j++) {
-      total += volumes[j];
-      if (closes[j] > closes[j - 1]) upVol += volumes[j];
+      if (closes[j] > closes[j - 1]) up++;
     }
-    if (total === 0) return NaN;
-    return (upVol / total) * 100;
+    return (up / period) * 100;
   });
   return { plot0: toPlotData(bars, vals) };
 }