The compose command is used to create vectors. It has two forms:
compose vecname param = value [...]or
Both forms of this command create a new vector called vecname. In the first form, the values in the vector are determined by the parameters given. In the second form, the given values are used to form the vector.
compose vecname values value [...]
The possible parameters are:
start The value at which the vector should start stop The value at which the vector should end step The difference between successive elements lin The number of points, linearly spaced log The number of points, logarithmically spaced dec The number of points per decade, log spaced center Where to center the range of points span The size of the range of points gauss The number of points in the gaussian distribution mean The mean value for the gaussian distribution sd The standard deviation for the gaussian distribution random The number of randomly selected points
In the first form of the command, at least one of lin, log, dec, gauss, or random should be specified, or each of start, stop, and step. For random, span defaults to 2.0, and center defaults to 0. For gauss, sd defaults to 1.0, and mean defaults to 0. The random number sequences can be reset by calling the seed command. The parameter start defaults to zero, unless implicitly set by other parameters. If start > stop, the order is reversed. Parameters start, stop, and step apply to lin (the default), log, and dec. Parameters center and span apply to random, and sd and mean apply to gauss.