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行情分為操作與觀望,這里以周MACD從金叉到死叉區間為可操作區間為例,做一個K線反映這種趨勢.這段源碼包含了周線MACD 及不定周期K線的寫法,匆忙之中肯定有瑕疵,也望各位指正趨勢K線
input:long(26,20,100),short(12,5,40),m(9,2,60);
m60:ma(c,60);
wtj1:=datediff(ref(date,1),date)<>weekday-ref(weekday,1) or barpos=1;
wtj:=refx(wtj1,1) or weekday=5;
fc:=close;
start:=barpos-barssince(wtj);
diff:=0*close;
dea:=0*close;
tmp:=setlbound(diff,start[datacount]);
tmp:=setlbound(dea,start[datacount]);
d1:=fc[start[datacount]];d2:=d1;wdea:=0;
for i=start[datacount]+1 to datacount do begin
if wtj[i] then begin
d1:=(2*fc[i]+(short-1)*d1)/(short+1);
d2:=(2*fc[i]+(long-1)*d2)/(long+1);
wdiff:=d1-d2;
wdea:=(2*wdiff+(m-1)*wdea)/(m+1);
diff[i]:=wdiff;
dea[i]:=wdea;
end else begin
diff[i]:=(2*fc[i]+(short-1)*d1)/(short+1)-
(2*fc[i]+(long-1)*d2)/(long+1);
dea[i]:=(2*diff[i]+(m-1)*wdea)/(m+1);
end;
end;
macd:=2*(diff-dea),colorstick;
jc:=cross(DIFF,DEA);scc:=cross(DEA,DIFF);
DT:=DIFF>DEA;
Sed:=refx(scc,1) or barpos=datacount ;
Sp:=BARSLAST(jc)+1;wse:=barslast(scc);ts:=Sp-wse-1;
SO:ref(O,BARSLAST(jc)) LINETHICK colorred;
SH:HHV(H,Sp) LINETHICK colorred;
SH:=SETVAL(Sed,SH,-BARSLAST(jc),SH);
SL:LLV(L,Sp) LINETHICK colorred;
SL:=SETVAL(Sed,SL,-BARSLAST(jc),SL);
SC:SETVAL(Sed,C,-BARSLAST(jc),C) LINETHICK colorred;
SV:=SETVAL(Sed,0,-FLOOR(BARSLAST(jc)/2),1);
SV:=SETVAL(Sed,SV,-FLOOR(BARSLAST(jc)/2)+1,0);
Spk:=barslast(jc);
SPKM:=SPK and SV and dt;
SPKL:=jc AND NOT(Sed) and dt;
SPKR:=SPK and Sed and dt;
PARTLINE(Spk and DT,SO) coloryellow;
PARTLINE(Spk>0 and DT,SC) coloryellow;
STICKLINE(SPKM,SH,MAX(SC,SO),0,0) coloryellow;
STICKLINE(SPKM,SL,MIN(SC,SO),0,0) coloryellow;
STICKLINE(SPKL,SC,SO,0,0) coloryellow;
STICKLINE(SPKR and DT,SC,SO,0,0) coloryellow;
{程序化交易 m.weiqiv.net.cn }

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