edistnorm(X;Y)
Returns the normalized Levenshtein edit distance between two given strings.
Syntax
edistnorm(X;Y)Input
| Argument | Type | Description |
|---|---|---|
X |
text | The string on which to apply the function A column name |
Y |
text | The name of column containing string values to transform X
into |
Return Value
The result is the decimal value corresponding to the value of editdist(X;Y) divided by the length of the longer of
X and Y.
If X and Y are both N/A, the result is N/A. If either is
N/A (but not both), the result is 1.
Sample Usage
value1 |
value2 |
edistnorm(value1;value2) |
|---|---|---|
| 'cat' | 'rat' | 0.333333333333333 |
| 'apples' | 'oranges' | 0.714285714285714 |
| 'apples' | 'apples' | 0 |
Additional Information
- This function does not work with Unicode (UTF-8) strings.
- For a Unicode-compliant alternative, consider
strdist(X;Y;M;N).