Silk Performer includes the following random types:

**RndBin Random Type (binomial distribution)**

Declares a random variable that contains a boolean value that is generated following a binomial (Bernoulli) distribution.**RndExpF Random Type (exponential distribution)**

Declares a random variable that contains a floating-point value that is generated following an exponential distribution.**RndExpN Random Type (exponential distribution)**

Declares a random variable that contains a random integer value that is generated following an exponential distribution.**RndFile Random Type (strings from a pattern file)**

Declares a random variable that contains a random string value following a uniform distribution.**RndInd Random Type (individual distribution)**

Declares a random variable that contains a random value whose type is either string or integer, depending on the syntax of your declaration.**RndPerN Random Type (unique uniform distribution)**

Declares a random variable that contains a unique random integer value that is generated following a uniform distribution.**RndSno Random Type (serial numbers)**

Generates serial numbers of type integer. For each call, the RndSno type returns a value incremented by one over the previous call.**RndStr Random Type (alphanumeric values)**

Declares a random variable that contains a random string value.**RndStream Random Type (sequential from a pattern file)**

Declares a random variable that contains a string value selected in sequential order from a pattern file.**RndUniF Random Type (for wait statements)**

Declares a random variable that can be used solely in wait statements for generating random user times.**RndUniI Random Type (uniform distribution with intervals)**

Creates a variable that contains a value that is generated following a uniform distribution with intervals.**RndUniN Random Type (uniform distribution)**

Declares a random variable of type RndUniN. With each access, such a variable contains a value that is generated following a uniform distribution.**Normal Distribution**

Generate random values following a normal distribution.