Lines Matching defs:gamma
25 pdf-gamma pdf-poisson pdf-chisquare pdf-students-t pdf-beta \
26 cdf-gamma cdf-poisson cdf-chisquare cdf-beta \
27 random-gamma random-poisson random-chisquare random-students-t random-beta \
748 # Calculate normalized incomplete gamma function
843 # pdf-gamma --
844 # Return the probabilities belonging to a gamma distribution
857 # This uses the following parameterization for the gamma:
862 proc ::math::statistics::pdf-gamma { alpha beta x } {
917 return [pdf-gamma [expr {0.5*$df}] 0.5 $x]
1118 # cdf-gamma --
1119 # Return the cumulative probabilities belonging to a gamma distribution
1132 proc ::math::statistics::cdf-gamma { alpha beta x } {
1178 return [cdf-gamma [expr {0.5*$df}] 0.5 $x]
1201 # random-gamma --
1202 # Generate a list of gamma-distributed deviates
1214 # Generate a list of gamma-distributed random deviates
1219 proc ::math::statistics::random-gamma {alpha beta number} {
1288 return [random-gamma [expr {0.5*$df}] 0.5 $number]
1354 foreach w [random-gamma $a 1.0 $number] y [random-gamma $b 1.0 $number] {