beatrizalbiero

\begin{equation}
\label{eq:bigramsp}
    P(t|t_{1}^{n-1}) \approx P(t|t_{n-1})
\end{equation}

\begin{equation}
\label{eq:brigrams}
    P(t_n|w_{t-1}) = \frac{C(t_{n-1}t_n)}{C(t_{n-1})}
\end{equation}

beatrizalbiero

\begin{equation}
	P(X_1, X_2, \cdots, X_n) = P(X_1)\cdot P(X_2|X_1)\cdot P(X_3|X_1, X_2) \cdots P(X_n|X_{n-1}, X_{n-2}, \cdots, X_1) =\notag\\ 
\end{equation}
\begin{equation}
	\prod_{k=1}^{n} P(X_{k}|X_{1}^{k-1})
\end{equation}

beatrizalbiero

def readCSV(filename):
    f = open(filename,"r")
    y = open('saida.csv',"w")
    for row in f:
        treat = row.strip("\n").strip("\r")+';\n'
        new_list = treat.split(';') #str to list
        new_list[-1] = new_list[0]
        new_string = ''
        for i in range(0,len(new_list)-1):
            new_string = new_string + new_list[i] + ';'