A few notes related to various PM messages that I received concerning the implementation of Vtracs filters within C2.
Crunch Two has quite a few Vtracs-related filters implemented. You can choose - as of now - from the following 10 Vtracs filter selections:
VtracsNumbers (includes numbers that are part of your Vtracs numbers selection)
VtracsFrontPairs (includes numbers that are part of your Vtracs front pair numbers selection)
VtracsEndPairs (includes numbers that are part of your Vtracs end pair numbers selection)
VtracsSplitPairs (includes numbers that are part of your Vtracs split pair numbers selection)
VtracsFrontKeyDigits (includes numbers that have one of your Vtracs digit selections in the first position)
VtracsCenterKeyDigits (includes numbers that have one of your Vtracs digit selections in the second position)
VtracsEndKeyDigits (includes numbers that have one of your Vtracs digit selections in the last position)
VtracsSums (includes numbers that have one of the Vtracs sums you selected)
VtracsAbbrSums (includes numbers that have one of the Vtracs abbreviated sums you selected)
VtracsRoots (includes numbers that have one of the Vtracs roots or root sums you selected)
THe AbbrSum or Abbreviated Sum is the last digit of the two digit sum, e. g. Sums 13 and Sum 03 both have the AbbrSum of 3.
Here a simple example, that also show how little input C2 really needs.
The two commands:
<AddList:VtracsNumbers>
123, 543, 223
<SetSort:VtracsNumbers>
will give you all the numbers of the three selected Vtracs numbers and sorts the output by those numbers.
Evaluation Date: Sat Jul 24 07:04:00 PDT 2004
INPUT DATA:
<AddList:VtracsNumbers>
123, 543, 223
<SetSort:VtracsNumbers>
OUTPUT DATA:
Results: 24
VtracsNumbers: 123(8)
012(1), 017(1), 062(1), 067(1), 512(1), 517(1), 562(1), 567(1)
VtracsNumbers: 223(8)
112(1), 117(1), 162(1), 167(1), 612(1), 617(1), 662(1), 667(1)
VtracsNumbers: 543(8)
432(1), 437(1), 482(1), 487(1), 932(1), 937(1), 982(1), 987(1)
Here another example:
The two commands:
<AddList:VtracsFrontKeyDigits>
1
<SelectFilter:VtracsAbbrSums>
3, 4
<SetSort:VtracsNumbers>
will give you all the numbers that start with Vtracs first digit 1, and have an abbreviated Vtracs sum of 3 or 4. The output is once again sorted by Vtracs numbers.
Evaluation Date: Sat Jul 24 07:14:04 PDT 2004
INPUT DATA:
<AddList:VtracsFrontKeyDigits>
1
<SelectFilter:VtracsAbbrSums>
3, 4
<SetSort:VtracsNumbers>
OUTPUT DATA:
Results: 24
VtracsNumbers: 111(8)
000(1), 005(1), 050(1), 055(1), 500(1), 505(1), 550(1), 555(1)
VtracsNumbers: 112(8)
001(1), 006(1), 051(1), 056(1), 501(1), 506(1), 551(1), 556(1)
VtracsNumbers: 121(8)
010(1), 015(1), 060(1), 065(1), 510(1), 515(1), 560(1), 565(1)
I hope this gives a quick C2 and Vtracs idea.
Good Luck!