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%%%
% Probabilité et fréquence
%%%
\setKVdefault[PfCFrequence]{Couleur=false,Lancers=1,Legende=false}%
\defKV[PfCFrequence]{ListeCouleurs=\setKV[PfCFrequence]{Couleur}}%
\defKV[PfCFrequence]{Legendes=\setKV[PfCFrequence]{Legende}\setsepchar{,}\reademptyitems\readlist*\PfMListeLegendes{#1}\reademptyitems}%

\newtoks\tokPfMListeObjets%
\newtoks\tokPfMListeLegendes%
\def\UpdatetoksObj#1\nil{\addtotok\tokPfMListeObjets{#1,}}%
\def\UpdatetoksLegendes#1\nil{\addtotok\tokPfMListeLegendes{"#1",}}%

\NewDocumentCommand\ProbaFrequence{om}{%
  % #1 options
  % #2 répartition
  \tokPfMListeObjets{}%
  \tokPfMListeLegendes{}%
  \useKVdefault[PfCFrequence]%
  \setKV[PfCFrequence]{#1}%
  \setsepchar{,}\ignoreemptyitems%
  \readlist*\PfMListeObjets{#2}%
  \reademptyitems%
  \foreachitem\compteur\in\PfMListeObjets{\expandafter\UpdatetoksObj\compteur\nil}%
  \ifboolKV[PfCFrequence]{Legende}{%
    \foreachitem\compteur\in\PfMListeLegendes{\expandafter\UpdatetoksLegendes\compteur\nil}%
  }{}%
  \BuildFrequence{\the\tokPfMListeObjets}{\the\tokPfMListeLegendes}%
}%

\NewDocumentCommand\BuildFrequence{mm}{%
  \ifluatex
  \mplibnumbersystem{decimal}%
  \begin{Geometrie}[CoinBG={u*(-5,0)},CoinHD={u*(7.5,7.5)}]%6 en ordonnee
    Lancers = \useKV[PfCFrequence]{Lancers};
    LegendeVide=0;
    %
    color Col[];
    if \useKV[PfCFrequence]{Couleur}:
      n:=0;
      for p_=\useKV[PfCFrequence]{ListeCouleurs}:
        n:=n+1;
        if color p_:
          Col[n]=p_;
        else:
          LegendeVide:=n;
        fi;
      endfor;
    fi;
    %
    string Legende[];
    vardef EcrireLegendes(text t)=
    n:=0;
      for p_=t:
        n:=n+1;
        if p_="":
          LegendeVide:=n;
        else:
          Legende[n]=p_;
        fi;
      endfor;
      n:=0;  
    enddef;
    %    
    vardef LectureDonnees(text t)=
    numeric A[];
    numeric SommeTotale;
    SommeTotale=0;
      n:=0;
      for p_=t:
        n:=incr(n);
        A[n]=p_;
        SommeTotale:=SommeTotale+p_;
      endfor;
      total:=n;  
    enddef;
    %
    LectureDonnees(#1);
    if \useKV[PfCFrequence]{Legende}:
    EcrireLegendes(#2);
    fi;
    %
    numeric borne[];
    borne0=0;
    for k=1 upto total:
      borne[k]=borne[k-1]+A[k];
    endfor;
    %
    x.u:=5mm;
    y.u:=5mm;
    quad.u:=5mm;
    unites(1/(170*Lancers),5);
    origine((1,4));
    % grille
    for k=1 upto 11:
    draw (pp(0,0)--pp(0,1.1)) shifted(pp(k*Lancers*100,0)-pp(0,0)) withcolor gris;
    draw (pp(0,0)--pp(Lancers*(1000+100),0)) shifted(pp(0,k/10)-pp(0,0)) withcolor gris;
    endfor;
    % axe
    drawarrow pp(0,0)--pp(0,1.1);
    drawarrow pp(0,0)--pp(Lancers*(1000+100),0);
    % tiret
    for k=1 upto 10:
    draw (pp(k*Lancers*100,0)+u*(0,-0.05))--(pp(k*Lancers*100,0)+u*(0,0.05));
    endfor;
    numeric nb[],freq[];
    pair Freq[][];
    for k=1 upto total:
      nb[k]:=0;
      freq[k]=0;
    endfor;
    %
    for k=1 upto (Lancers*1000):
      nn:=floor(uniformdeviate(SommeTotale))+1;
      if nn=0:
        message("il est nul...");
      fi;
      for l=1 upto total:
        if (nn>borne[l-1]) and (nn<borne[l]+1):
          nb[l]:=nb[l]+1;
        fi;
        freq[l]:=nb[l]/k;
        Freq[l][k]=pp(k,freq[l]);
      endfor;
    endfor;
    %
    def Style=enddef;
    def Stylea=dashed evenly enddef;
    def Styleb=dashed withdots scaled 1/2 enddef;
    def Stylec=dashed dashpattern(on 1 off 1) enddef;
    def Styled=dashed withdots scaled 1/4 enddef;
    def Stylee=dashed dashpattern(on 6 off2) enddef;
    parc:=0;
    for l=1 upto total:
    if \useKV[PfCFrequence]{Couleur}=false:
    if (l mod 6)=1:
    elseif (l mod 6)=2:
    drawoptions(Stylea);
    elseif (l mod 6)=3:
    drawoptions(Styleb);
    elseif (l mod 6)=4:
    drawoptions(Stylec);
    elseif (l mod 6)=5:
    drawoptions(Styled);
    else:
    drawoptions(Stylee);
    fi;
    if \useKV[PfCFrequence]{Legende}:
    parc:=incr(parc);
    if l<>LegendeVide:
    draw pp(Lancers*400*((parc-1) mod 3),-0.25-0.1*((parc-1) div 3))--pp(Lancers*400*((parc-1) mod 3)+125,-0.25-0.1*((parc-1) div 3));
    label.rt(TEX(Legende[l]),pp(Lancers*400*((parc-1) mod 3)+125,-0.25-0.1*((parc-1) div 3)));
    else:
    parc:=parc-1;
    fi;
    fi;
    fi;
    %
    if l<>LegendeVide:
      if Lancers<1:
        trace Freq[l][1]
        for k=2 upto (1000*Lancers):
          --Freq[l][k]
        endfor withcolor if unknown Col[l]:black else:Col[l] fi;
      else:
        trace Freq[l][1]
        for k=5 step 4 until (1000*Lancers):
          --Freq[l][k]
        endfor withcolor if unknown Col[l]:black else:Col[l] fi;
      fi;
    fi;
    endfor;
   drawoptions();
    for k=1 upto 10 :
    label.bot(TEX("\scriptsize\num{"&decimal((100*k)*Lancers)&"}"),pp(Lancers*100k,0));
    endfor;
    for k=2 step 2 until 10:
    label.lft(TEX("\scriptsize\num{"&decimal(k/10)&"}"),pp(0,k/10));
    endfor;
    label.llft(TEX("\scriptsize 0"),pp(0,0));
    label.urt(TEX("Fréquence"),pp(0,1));
    label.bot(TEX("Nombre de lancers"),pp(0.5*Lancers*(1000+200),-0.075));
  \end{Geometrie}
  \mplibnumbersystem{scaled}
  \fi
}%