Cumulative products of a series or of the elements of a matrix.
• Compute the cumulative product of the values in the series x from the start of the workfile or sample s, up to the current observation:
Syntax: @cumprod(x[, s])
x: series, matrix, vector
s: (optional) sample string or object
Return: series, matrix, vector
• Compute the cumulative product of the elements of the matrix in vec order.
Syntax: @cumprod(m)
m: matrix, vector
Return: matrix, vector
This function is panel aware.
Note that this function is prone to numeric overflow.
Examples
show @cumprod(x)
produces a linked series whose elements are the cumulative products of the elements in x.
Cross-references
For the backward variant of this function for series, see
@cumbprod.
