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Last modified: Tue Dec 20 11:48:26 2005.
NAME: binomialdist PURPOSE: Return the binomial distribution CALLING SEQUENCE: RESULT = BINOMIALDIST(N) INPUTS: N : Number of Bernoulli trials to consider. OUTPUTS: Returns a vector containing the binomial distribution. RESTRICTIONS: N must be less than the value which makes N! larger than the largest usable floating point value on your machine! That's N < 151 on my machine, but will likely be different for you. PROCEDURES CALLED: FACTORIAL EXAMPLE: distribution = binomialdist(134) NOTES: The binomial distribution gives the probability distribution of obtaining exactly i successes out of N Bernoulli trials (where the result of each Bernoulli trial is true with probability p and false with probability q=1-p). MODIFICATION HISTORY: Written Tim Robishaw, Berkeley 01 Dec 2001.
(See /dzd2/heiles/idl/gen/math/binomialdist.pro)
NAME: ORDER PURPOSE: To return the order of magnitude of a number. CALLING SEQUENCE: result = ORDER(value) INPUTS: value : a number. OUTPUTS: Returns the order of magnitude of the input value. EXAMPLE: IDL> print, order(1.989d33) 33 NOTES: The "order of magnitude" of a number is defined as the floor of the base-10 logarithm of that number. MODIFICATION HISTORY: 21 Jun 2002 Written by Tim Robishaw, Berkeley
(See /dzd2/heiles/idl/gen/math/order.pro)
NAME: SIGN PURPOSE: Returns the sign of the input value(s). CALLING SEQUENCE: Result = SIGN(value) INPUTS: value : a number. KEYWORD PARAMETERS: None. OUTPUTS: Returns the sign of the input value(s). COMMON BLOCKS: None. EXAMPLE: IDL> print, sign([-3,0,3]) -1.00000 0.00000 1.00000 MODIFICATION HISTORY: 10 Feb 2004 Written by Tim Robishaw, Berkeley
(See /dzd2/heiles/idl/gen/math/sign.pro)