Add hint for generating unchanging random value

source/include/signalflow/node/stochastic/random-brownian.h

@@ -8,6 +8,7 @@ namespace signalflow
 /**--------------------------------------------------------------------------------*
  * Outputs Brownian noise between min/max, with a mean change of delta between samples.
  * If a clock is passed, only generates a new value on a clock tick.
+ * To generate and hold an unchanging random value, pass clock=0.
  *---------------------------------------------------------------------------------*/
 class RandomBrownian : public StochasticNode
 {

source/include/signalflow/node/stochastic/random-choice.h

@@ -8,6 +8,7 @@ namespace signalflow
 /**--------------------------------------------------------------------------------*
  * Pick a random value from the given array.
  * If a clock is passed, only picks a new value on a clock tick.
+ * To generate and hold an unchanging random value, pass clock=0.
  *---------------------------------------------------------------------------------*/
 class RandomChoice : public StochasticNode
 {

source/include/signalflow/node/stochastic/random-coin.h

@@ -8,6 +8,7 @@ namespace signalflow
 /**--------------------------------------------------------------------------------*
  * Flip a coin with the given probability.
  * If a clock is passed, only picks a new value on a clock tick.
+ * To generate and hold an unchanging random value, pass clock=0.
  *---------------------------------------------------------------------------------*/
 class RandomCoin : public StochasticNode
 {

source/include/signalflow/node/stochastic/random-exponential-dist.h

@@ -8,6 +8,7 @@ namespace signalflow
 /**--------------------------------------------------------------------------------*
  * Generate an random value following the exponential distribution.
  * If a clock is passed, only picks a new value on a clock tick.
+ * To generate and hold an unchanging random value, pass clock=0.
  *---------------------------------------------------------------------------------*/
 class RandomExponentialDist : public StochasticNode
 {

source/include/signalflow/node/stochastic/random-exponential.h

@@ -8,6 +8,7 @@ namespace signalflow
 /**--------------------------------------------------------------------------------*
  * Generate an random exponential value between min/max.
  * If a clock is passed, only picks a new value on a clock tick.
+ * To generate and hold an unchanging random value, pass clock=0.
  *---------------------------------------------------------------------------------*/
 class RandomExponential : public StochasticNode
 {

source/include/signalflow/node/stochastic/random-gaussian.h

@@ -8,6 +8,7 @@ namespace signalflow
 /**--------------------------------------------------------------------------------*
  * Generate an random Gaussian value, with given mean and sigma.
  * If a clock is passed, only picks a new value on a clock tick.
+ * To generate and hold an unchanging random value, pass clock=0.
  *---------------------------------------------------------------------------------*/
 class RandomGaussian : public StochasticNode
 {

source/include/signalflow/node/stochastic/random-uniform.h

@@ -8,6 +8,7 @@ namespace signalflow
 /**--------------------------------------------------------------------------------*
  * Generates a uniformly random value between min/max.
  * If a clock is passed, only picks a new value on a clock tick.
+ * To generate and hold an unchanging random value, pass clock=0.
  *---------------------------------------------------------------------------------*/
 class RandomUniform : public StochasticNode
 {