1.1.7.3. Optional settings in the "Line Finder NENN " node

Methods to analyze NENN
- NENN Text M [NENN text mapping analysis] apping Analysis:
  Hits only when nearly 100% accordance in text and number is given
  With interchanged numbers there are no results.
NENN [NENN number mapping analysis] number mapping analysis:
Only numbers are used for the analysis. The sequence of numbers doesn't matter primarily.
if this option is selected, specification options are still available under Number mapping settings. If the checkbox is deactivated, the following options are deactivated.
- Allow [Allow variants] variants:
  If the option is deactivated, there is no further analysis for a not assignable product.
  
  Variant not recognized
  
  If the option is activated, variants can often be recognized. They are marked with "Type = V' and the variant variable is displayed with its value.
  
  Variant recognized - However, assignment has still to be confirmed manually.
  
  Open the context menu and click on Modify link.
  -> The project table is opened. The next fitting line is already automatically selected. Furthermore the variant variable is highlighted with green color.
  
  All you have to do is click Ok.
  -> The assignment is now displayed as 100%.
- User-defined separators between attribute and value (regular expression ) [User defined separators between attribute and value (Regular Expression)]:
  If you want to use several separators, use the pipe "| " as the separator.
  Example:
```
=|\s
```
  As separator "equal sign" OR "empty space" is specified.
  
  Example where the declaration of a separator makes sense.
  
  The sequence of the attribute-value pairs doesn't matter:
  "L=25, D=20" would have been found just as well.
- User-defined column positions [User defined column positions]:
  
  If several variable values are in one single column, you can use this function.
  
  In the column "Abmessung [Dimension]]" you can find the values for D and L.
  
  Special case empty input value
  Example:
  Following input:
```
20, 30, 46453456346
```
  Meaning: D=20, L = 30, Customer number=46453456346
  If the NENN algorithm detects, that the NENN may consist of 2 (D,L) or 3 (D,L,P) numbers, it attempts to match the third value "46453456346" to P, even it is not set explicitly in the column positions.
  However, in this case 46453456346 is not P, but the customer number.
  In this case you should not specify a variable as third input value. Then the NENN algorithm isn't used with 3 numbers, but with 2:
```
D     Erster Eingabewert
L     Zweiter Eingabewert
      Dritter Eingabewert
```
  The third input value is ignored and only D=20, L=30 are searched.

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