From STX Wiki
Jump to navigation Jump to search

Calculate the absolute frequency of the values of vector x in arbitrary classes. Depending on the number of extents, the result of the function is a vector or a scalar.

hist(x, us, os, n)
hist(x, uv, ov)
hist(x, rv)
hist(x, rm)
a vector or a matrix
us, os, n
Every pair {us+d*i, us+d*(i+1)} (with: d=(os-us)/n, i=0..n-1) defines a class. All three arguments are scalars.
uv, ov
Every pair {uv[i], ov[i]} (with: i=0..nrow(uv)-1) defines a class. Both arguments must be vectors with same length.
Every pair {rv[i], rv[i+1]} (with: i=0..nrow(rv)-2) defines a class. The argument must be vector.
Every pair {rm[i,0], rm[i,1]} (with: i=0..nrow(rm)-1) defines a class. The argument must be matrix with 2 columns.
The result r is a scalar or a vector. Each element ri is the number of elements of x belonging to class i. An element xj,k belongs to a class i if xminixj,k < xmaxi.
See also
sum, wsum

<function list>