Suppose that we have a matrix (n lines and 3 column) which represents the value of three variable X, Y, Z at some instants :
X Y Z
x1 y1 z1
x2 y2 z2
...
xn yn zn
Given that X is a discrete variable, Y and Z are continuous, how can we calculate the (empirical) distribution functions f(x|y,z), g(y|z) and h(x,y|z), m(x)?