short graph(const string & title_graph, const string & label, const short x, const short y, const short x_start, const short y_start, const short y_end);
Create a graphic from a data file (specified by constructor).
title_graph and label are used to provide the
graphic title and label names in the legend. x refers to the
index in the ``vectorMatrix
& data'' (in class
IO_Matrix_file) corresponding to the x axis (ex:
time), while y refers to the index in the
``vector
Matrix
& data'' corresponding to the
y axis (ex: joints positions). x_start,
y_start and y_end specify which rows of
data to use.