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n=0;n<=20;n++){const a=n/20,mm=met(yt,pt.map(q=>q.map((x,j)=>(1-a)*x+a*freq[j])));if(mm.brierq.map((x,j)=>(1-ba)*x+ba*freq[j]))),use=cal.brier(1-ba)*x+ba*freq[j]),sp=use?cp:rp;out.push({symbol:s,historyStart:new Date(A[s][0].t).toISOString().slice(0,10),historyEnd:new Date(A[s].at(-1).t).toISOString().slice(0,10),oosN:y.length,validationN:yv.length,calibrationAlpha:ba,calibrationSelected:use,rawValidation:raw,calibratedValidation:cal,currentRaw:Object.fromEntries(CLS.map((c,j)=>[c,rp[j]])),currentSelected:Object.fromEntries(CLS.map((c,j)=>[c,sp[j]])),featureDate:new Date(latest.t).toISOString().slice(0,10),horizonEnd:new Date(latest.t+H*86400000).toISOString().slice(0,10)});}return{source:\"Yahoo Finance chart API\",method:\"purged expanding-window KNN; 7-day horizon; +/-2.5% flat; chronological 60/40 calibration split; calibration only if Brier and logloss both improve\",results:out}}","const 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i=0;i0)out.push({t:ts[i]*1000,c,q:Number.isFinite(v)&&v>0?v:1})}return out}\nfunction met(y:string[],p:number[][]){let ok=0,br=0,ll=0;y.forEach((v,i)=>{let k=p[i].indexOf(Math.max(...p[i]));if(CLS[k]===v)ok++;p[i].forEach((z,j)=>br+=(z-(CLS[j]===v?1:0))**2);ll-=Math.log(Math.max(1e-12,p[i][CLS.indexOf(v)]))});return{accuracy:ok/y.length,brier:br/y.length,logloss:ll/y.length}}\nfunction build(a:R[],b:R[]){const mb=new Map(b.map(r=>[r.t,r])),aa=a.filter(r=>mb.has(r.t)),bb=aa.map(r=>mb.get(r.t)!);const all:any[]=[];for(let i=30;ij?Math.log(r.c/aa[i-30+j].c):Math.log(r.c/aa[i-1].c)),bl=bb.slice(i-29,i+1).map((r,j)=>j?Math.log(r.c/bb[i-30+j].c):Math.log(r.c/bb[i-1].c)),q=aa.slice(i-29,i+1).map(r=>Math.log(Math.max(1,r.q))),f=i+HB?\"Up\":f< 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Diff · v3