This node maps data of a high dimensional space onto a lower (usually 2 or 3) dimensional space. Therefore the Sammons mapping is applied, which iteratively decreases the difference of the distances of high and low dimensional data. Each original data point is represented by a data point of a lower dimension. The Sammons mapping tries to keep the distance information of the high dimensional data by adjusting the low dimensional data points in a certain way. Each low dimensional data point is moved around a bit towards or back from the other points according to its high dimensional distances. This procedure is repeated a specified number of epochs or iterations respectively. The distances in the original high dimensional space have to be provided by a column containing distance vectors (see distance matrix calculate node). According to these distances the data is mapped onto the lower dimensional space. In the low dimensional space the Euclidean distance is used to arrange the points.
Options
Popular Successors
- Scatter Plot (JFreeChart)9 %
Joiner7 %- Scatter Plot (JavaScript)7 %
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- Joiner4 %
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- SDF Writer4 %
- Scatter Plot (Plotly)3 %
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Number To String2 %Row Splitter (deprecated)2 %- k-Means2 %
- MDS (DistMatrix)2 %
- MDS Projection (DistMatrix)2 %
- MDS Projection2 %
- Auto-Binner2 %
- Numeric Binner2 %
- HiLite Row Splitter2 %
- Interactive Table (legacy)2 %
- Distance Matrix Writer2 %
Excel Writer (XLS)2 %- Distance (1-D)< 1 %
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K Nearest Neighbor< 1 %- MDS< 1 %
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PCA< 1 %Scorer< 1 %- PCA< 1 %
- Concatenate< 1 %
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String To Number< 1 %- String to Number< 1 %
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- RowID< 1 %
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- Statistics< 1 %
- Scatter Plot (legacy)< 1 %
- Scatter Matrix (legacy)< 1 %
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- Matrix Distance< 1 %
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- Line Plot (JavaScript)< 1 %
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Workflows
(3D) Fragment library design workflowKNIME Hub- 01_ClusteringKNIME Hub
- 01_ClusteringKNIME Hub
- Chemical SpaceKNIME4HTS
- log-analysis_v0.2KNIME Hub
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