A NumericalSample is a container seen as a collection of NumericalPoint. It has a size (the number of NumericalPoint it holds) and a dimension (the dimension of every NumericalPoint it holds).
Once the dimension is set, you can't change it. The dimension is set when the NumericalSample is created or when the first NumericalPoint is added to it. The size is variable from zero, when no NumericalPoint are present, to anything until the memory limit of your process either upwards or downwards.
The points are ordered and accessed randomly. Erasures are also possible.
Some statistical computations are held by the NumericalSample (mean, min, max, etc.).
A NumericalSample can be saved or reloaded through the Study.
