Wilcoxon Signed-Rank

Calculates the Wilcoxon signed-rank statistics for dependent groups. The static w is calculated by building the difference between the two values of a pair and ranking them. The output will be the sum of ranks of positive differences (w+) and the sum of ranks of negative differences (w-) and the measures derived from that.

Options

Left column - Right column

You can define the test column pairs here. Every pair is used to perform a Wilcoxon signed-rank test separately.

Input Ports

The input data.

Output Ports

A row for each test.

Statistics of the selected columns.

Information about the calculated ranks.

Best Friends (Incoming)

• Numeric Scorer (24 %) Deprecated
• Table Creator (12 %) 
• Database Reader (legacy) (6 %) 
• Group Loop Start (6 %) 
• Concatenate (6 %) Streamable
• Column Filter (6 %) Streamable
• Reference Row Filter (6 %) 
• Normalizer (6 %) 
• Rule Engine (6 %) Streamable
• Kruskal-Wallis Test (6 %) 
• Wilcoxon-Mann-Whitney Test (6 %) 
• Statistics (6 %) 
• Excel Reader (XLS) (6 %) StreamableDeprecated
• Show all 13 recommendations

Best Friends (Outgoing)

• Linear Correlation (40 %) Deprecated
• Column Filter (40 %) Streamable
• Python Snippet (20 %) 

Workflows

• 02_​Example_​for_​Statistical_​Tests 

Installation

To use this node in KNIME, install KNIME Statistics Nodes (Labs) from the following update site:

A zipped version of the software site can be downloaded here. Read our FAQs to get instructions about how to install nodes from a zipped update site.

Developers

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.