Ich habe einige Berechnungsformeln für diesen Indikator im Internet gefunden.
/*
LC := REF(CLOSE,1); //REF(C,1) 上一周期的收盘价
RSI:=SMA(MAX(CLOSE-LC,0),N,1)/SMA(ABS(CLOSE-LC),N,1) *100;
%K: MA(RSI-LLV(RSI,M),P1)/MA(HHV(RSI,M)-LLV(RSI,M),P1)*100; LLV(l,60)表示:检索60天内的最低价,可适应于检索任何股票
%D:MA(%K,P2);
LC := REF(CLOSE,1);
RSI:=SMA(MAX(CLOSE-LC,0),N,1)/SMA(ABS(CLOSE-LC),N,1) *100;
STOCHRSI:MA(RSI-LLV(RSI,M),P1)/MA(HHV(RSI,M)-LLV(RSI,M),P1)*100;
*/
Oh Gott! Ich hatte die Geduld, es zu sehen. Das ist eine allgemeine Formel. Aber auch ich, mit etwas Programmiererfahrung, kann nur raten!
Es ist eine schmerzhafte Zeit, die ich durchlebt habe. Zusammenfassung:
Grün ist %K und Orange ist %D

function LLV(array,period){
if(!array || array.length - period < 0){
throw "error:" + array;
}
var min = array[array.length - period];
for(var i = array.length - period; i < array.length; i++){
if( array[i] < min ){
min = array[i];
}
}
return min;
}
function HHV(array,period){
if(!array || array.length - period < 0){
throw "error:" + array;
}
var max = array[array.length - period];
for(var i = array.length - period; i < array.length; i++){
if( array[i] > max){
max = array[i];
}
}
return max;
}
function DeleteNullEle(initArr){
var dealArr = [];
var initArrLen = initArr.length;
for(var i = 0,j = 0 ; i < initArrLen ; i++,j++){
if(initArr[i] === null || isNaN(initArr[i]) ){
j--;
continue;
}
dealArr[j] = initArr[i];
}
return dealArr;
}
/*
LC := REF(CLOSE,1); //REF(C,1) 上一周期的收盘价
RSI:=SMA(MAX(CLOSE-LC,0),N,1)/SMA(ABS(CLOSE-LC),N,1) *100;
%K: MA(RSI-LLV(RSI,M),P1)/MA(HHV(RSI,M)-LLV(RSI,M),P1)*100; LLV(l,60)表示:检索60天内的最低价,可适应于检索任何股票
%D:MA(%K,P2);
LC := REF(CLOSE,1);
RSI:=SMA(MAX(CLOSE-LC,0),N,1)/SMA(ABS(CLOSE-LC),N,1) *100;
STOCHRSI:MA(RSI-LLV(RSI,M),P1)/MA(HHV(RSI,M)-LLV(RSI,M),P1)*100;
*/
function FstochRSI(records,n,m,p1,p2){
var len = records.length;
//var LC = records[len-2];//上一周期收盘价
//var rsi = TA.RSI(records,n);// RSI 数组 ,talib
var rsi = talib.RSI(records,n);
rsi = DeleteNullEle(rsi);//ceshi
var arr1 = [];
var arr2 = [];
var arr3 = [];
var arr4 = [];
var rsi_a = [];
var rsi_b = [];
var k = [];
var d = null;
/*不包含当前柱
for(var a = 0 ;a < rsi.length ; a++ ){//改造 不用 LLV
for(var aa = 0 ; aa <= a; aa++ ){
rsi_a.push(rsi[aa]);
}
arr1.push(rsi[a] - TA.Lowest(rsi_a,m));
}
for(var b = 0 ;b < rsi.length ; b++ ){//改造 不用 HHV
for(var bb = 0 ; bb <= b; bb++ ){
rsi_b.push(rsi[bb]);
}
arr2.push(TA.Highest(rsi_b,m) - TA.Lowest(rsi_b,m));
}
*/
for(var a = 0 ;a < rsi.length ; a++ ){//改造 不用 LLV
if(a < m){
continue;
}
for(var aa = 0 ; aa <= a; aa++ ){
rsi_a.push(rsi[aa]);
}
arr1.push(rsi[a] - LLV(rsi_a,m));
}
for(var b = 0 ;b < rsi.length ; b++ ){//改造 不用 HHV
if(b < m){
continue;
}
for(var bb = 0 ; bb <= b; bb++ ){
rsi_b.push(rsi[bb]);
}
arr2.push(HHV(rsi_b,m) - LLV(rsi_b,m));
}
arr1 = DeleteNullEle(arr1);
arr2 = DeleteNullEle(arr2);
//Log("arr1:",arr1.length,"-",arr1);//ceshi
//Log("arr2:",arr2.length,"-",arr2);//ceshi
arr3 = talib.MA(arr1,p1);
arr4 = talib.MA(arr2,p1);
arr3 = DeleteNullEle(arr3);
arr4 = DeleteNullEle(arr4);
//Log("ceshi");//ceshi
var c = 0;
var diff = 0;
if(arr3.length !== arr4.length){//实测 长度不相等
throw "error: !=" + arr3.length + "----" + arr4.length;
diff = arr4.length - arr3.length; //example diff = 10 - 6
}else{
//throw "error:" + arr3.length + "----" + arr4.length;
}
for( ;c < arr3.length ; c++ ){
k.push(arr3[c] / arr4[c + diff] * 100);
}
d = talib.MA(k,p2);
return [k,d,rsi];
}