3. Script Language > Mathematical and algorithmic operations > FZC.

FZC. - Fuzzy-Compare

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MiniRobotLanguage (MRL)

FZC. Command

Fuzzy Compare

Intention

Compare two strings with one of two alternative fuzzy logic algorithms.

FZC. in Mode 1 uses a percentage from 0 to 100.

FZC. in Mode 2 (use P3, "m"-Flag) calculates a error number starting from 0 if two strings are equal.

In both modes, you will find the internally calculated "Match-value" on TOS.

The firs example will evaluate to 95% and therefore leave a 95 on the TOS.

$$TXB=ABCDEFGHIJK

$$TXA=ABCEFGHIJK

FZC.$$TXA|$$TXB

DBP.$$000

ENR.

In Mode 2 we deal with "typing errors". Take this example:

$$TXB=ABCDEFGHIJK

$$TXA=ABCEFGHIJK

FZC.$$TXA|$$TXB|m

DBP.$$000

ENR.

Will drop a "1" on TOS. It indicates that if you type one character at the right place, these strings could be equal. Note that a missing or deleted char is always one typing error.

If you want to base a decision on the result of the comparison, prefer

IFC. - If Fuzzy Compare .

Syntax

FZC.P1|P2[|P3]

Parameter Explanation

P1 - Variable A to compare

P2 - Variable B to compare

P4 - (optional) can be omitted or can be "m". In that case

another algorithm is used to compare P1 and P2.

In detail the difference is:

- Algorithm 1 (no "m"-Flag):

Result on TOS is a percentage number from 0% to 100%.

P1 matches P2 for the given percentage.

- Algorithm 2 ("m"-Flag, P4 is used):

Result is a error number, similar to wrong letter,

or missing letter. If Algorithm 2 is chosen, then

P1 matches P2 taking into account the resulting

number of "typing errors".

Example

'***********************************

' FZC.-Test, Algo 1

'***********************************

$$TXB=ABCDEFGHIJK

$$TXA=ABCEFGHIJK

FZC.$$TXA|$$TXB

DBP.$$000

ENR.

'***********************************

' FZC.-Test, Algo 2

'***********************************

$$TXB=ABCDEFGHIJK

$$TXA=ABCEFGHIJK

FZC.$$TXA|$$TXB|m

DBP.$$000

ENR.

Remarks

Limitations: