72 return minV + (maxV - minV) *
rand();
76 static inline size_t rand(
size_t maxV) {
81 static inline int rand(
int maxV) {
86 static inline int rand(
int minV,
int maxV) {
87 return minV +
rand(maxV - minV);
92 return (
SUMOReal) rng.randNorm(mean, variance);
100 return v[
rand(v.size())];
static void insertRandOptions()
Initialises the given options container with random number options.
static SUMOReal rand()
Returns a random real number in [0, 1)
static SUMOReal randNorm(SUMOReal mean, SUMOReal variance, MTRand &rng=myRandomNumberGenerator)
Access to a random number from a normal distribution.
static T getRandomFrom(const std::vector< T > &v)
Returns a random element from the given vector.
Utility functions for using a global, resetable random number generator.
static void initRandGlobal(MTRand *which=0)
Reads the given random number options and initialises the random number generator in accordance...
static int rand(int maxV)
Returns a random integer in [0, maxV-1].
static size_t rand(size_t maxV)
Returns a random integer in [0, maxV-1].
static SUMOReal rand(SUMOReal maxV)
Returns a random real number in [0, maxV)
static SUMOReal rand(SUMOReal minV, SUMOReal maxV)
Returns a random real number in [minV, maxV)
static MTRand myRandomNumberGenerator
the random number generator to use
A storage for options typed value containers)
static int rand(int minV, int maxV)
Returns a random integer in [minV, maxV-1].