b = sign(s) : sign of iFunc object @iFunc/sign function to return the sign of data sets This function computes the sign of the object 's', i.e -1 for negative values, 0 for null, and +1 for positive values. input: s: object or array (iFunc) output: b: object or array (iFunc) ex: b=sign(a); Version: Nov. 26, 2018 See also iFunc, iFunc/sign, iFunc/isreal, iFunc/isfinite, iFunc/isnan, iFunc/isinf, iFunc/isfloat, iFunc/isinterger, iFunc/isnumeric, iFunc/islogical, iFunc/isscalar, iFunc/isvector, iFunc/issparse