RandomLogic's line # combinations algorithm

Reply #10

nibor200 — Sat, 18 Jan 2020 18:17:14 GMT

@RL,

Yes, it helped a lot

thanks again,

Ed S.

Reply #9

RL-RANDOMLOGIC — Sat, 18 Jan 2020 13:46:49 GMT

NC1$ was for testing and never got removed. Both the settolex and lextoset use combinations

to do the conversions. Once you understand the concept, each works much the same way just

in reverse. Hope it helps. Someday I will clean it up and cut out the junk code.

RL

Reply #8

nibor200 — Thu, 16 Jan 2020 16:31:44 GMT

@RL,

1. Thanks for the algorithms.

2. It looks like the lines NC1$ = LTRIM$(STR$(NC1)) aren't needed to run just the 'SUB LEXTOSET' in my circumstance.

Thanks,

Ed S.

Reply #7

nibor200 — Thu, 16 Jan 2020 16:18:36 GMT

@JadeLottery,

Thanks for all of the Excel functions.

Ed S.

Reply #6

RL-RANDOMLOGIC — Mon, 13 Jan 2020 09:39:01 GMT

The code in blue below pads all numbers less than 10 of the converted set with a zero.

Numbers 10 and greater are not padded. Also NSET = the total numbers in the pool

so for my 5-39, NSET = 39. You can see the algorithm that makes the conversion is

very small. If you need more info in porting it just ask, I know python can calculate nCr

without a problem and with less code.

SUB LEXTOSET

LEX1=VAL(LEX1$)

IF LEX1 NCR THEN GOTO BYPASSCONVERT

SET1$= : LX1=NSET: LEXHI=(NCR-LEX... [ More ]

Reply #5

RL-RANDOMLOGIC — Mon, 13 Jan 2020 09:21:36 GMT

The code in blue corrects errors in the nCr calculations whenever a fractional value is

returned. This was needed to round the value right of the decimal point to either 0 or 1.

If porting to another language this code may not be needed and can be removed.

RL

SUB LEXTOSET

LEX1=VAL(LEX1$)

IF LEX1 NCR THEN GOTO BYPASSCONVERT

SET1$= : LX1=NSET: LEXHI=(NCR-LEX1):PICK1 = PICKT

NEXTMINI:

NC1 = Factorial(LX1) / (Factorial(PICK1) * Factorial(LX1 - PICK1)):

NC1$ = LTRIM... [ More ]

Reply #4

RL-RANDOMLOGIC — Mon, 13 Jan 2020 08:48:10 GMT

Here is the actual basic code I use for both conversions. Note, this code was written

around 20 years ago. Pickt = the number of numbers within a set. Dat1$ is the string

variable that holds the number set, numbers are zero padded, single spaced.

LEX1$ is the index value of a set for converting a lex-index to a set, second sub

below. There are many variables within the subs that need to be dimed as double.

This is basic code but runs very fast, around 4000 conversions per second.... [ More ]

Reply #3

JADELottery — Sun, 12 Jan 2020 19:36:12 GMT

Here's some functions we use in Excel; with a reverse function for finding a combination from a combinatorial index.

If you copy and paste what's between the horizontal lines in to an Excel VB Module, you'll have these available as functions in Excel.

Good Luck

__________________________________________________

Function Fact(ByVal n As Integer) As Double

On Error GoTo exitfunction

If (n = 1) Then

Fact = 1

Else

Fact = n * Fact(n - 1)

End If

Exit Function

ex... [ More ]

Reply #2

JADELottery — Sun, 12 Jan 2020 18:56:15 GMT

Factorial ! = ( -0) ( -1) ( -2) ( -3) 3 2 1 and 0!=1

Combination C(n,r) = n!/(r! (n-r)!)

Pick 5 Combinatorial Index P5Ci(n,r,n1,n2,n3,n4,n5)= C(n,r)-C(n-n1,r-0)-C(n-n2,r-1)-C(n-n3,r-2)-C(n-n4,r-3)-C(n-n5,r-4)

hmm, interesting...

Reply #1

tom1262 — Sat, 11 Jan 2020 22:04:38 GMT

Would it be possible to predict two digits or one digit on a four or three digit game. I've been researching a way to predict one digit but haven't had any success. I'd like to have a formula for this? If anyone has a idea please feel free to email me a algorithm formula. Thanks, Tom

RandomLogic's line # combinations algorithm

nibor200 — Sat, 11 Jan 2020 21:43:37 GMT

Back in 2010 in a now closed topic My Digit System for Pick-5 or Pick-6 Lottery Rl posted the following

About a year ago a LP member posted a question similar to this. Is there any way

to calculate where a certain set of numbers would appear within a list of all the

combinations for a given lottery . ...

In a 5/44 lottery the set 03-17-24-35-42 would fall on line 317882

n1 = 3, n2 = 17, n3 = 24, n4 = 35, n5 = 42

n=44, r=5

x1 = nCr

x2 = (n-n1)Cr

x2 = (x1-x2)

x3... [ More ]