Enables the definition of arbitrary distance measures using a Java snippet. A distance measure is
defined on two equal structured rows. You can refer to a cell value by enclosing the column name
prefixed by either
row1
or
row2
for example
$row1.c1$
.
Compute the Euclidean distance of the columns
c1
and
c2
:
sqrt(sqr($row1.c1$-$row2.c1$)+sqr($row1.c2$-$row2.c2$))
Compute the arithmetic mean of the Levenshtein distance of the columns
c1
and
c2
:
mean(levenshtein($row1.c0$,$row2.c0$),levenshtein($row1.c1$, $row2.c1$))
Note that strings which are part of the expression and are not from the input data (or the result of another wrapped function call) need to be enclosed in double quotes ('"'). Additionally, if the string contains a quote character, it must be escaped using a backslash character ('\"'). Finally, other special characters such as single quotes and backslashes need to be escaped using a backslash. For instance, a single backslash in a string is written as two consecutive backslash characters; the first one acts as the escape character for the second.
You want to see the source code for this node? Click the following button and we’ll use our super-powers to find it for you.
To use this node in KNIME, install the extension KNIME Distance Matrix from the below update site following our NodePit Product and Node Installation Guide:
A zipped version of the software site can be downloaded here.
Deploy, schedule, execute, and monitor your KNIME workflows locally, in the cloud or on-premises – with our brand new NodePit Runner.
Try NodePit Runner!Do you have feedback, questions, comments about NodePit, want to support this platform, or want your own nodes or workflows listed here as well? Do you think, the search results could be improved or something is missing? Then please get in touch! Alternatively, you can send us an email to mail@nodepit.com, follow @NodePit on Twitter or botsin.space/@nodepit on Mastodon.
Please note that this is only about NodePit. We do not provide general support for KNIME — please use the KNIME forums instead.