This node computes certain statistics between the a numeric column's values (ri) and predicted (pi) values. It computes R²=1-SSres/SStot=1-Σ(pi-ri)²/Σ(ri-1/n*Σri)² (can be negative!), Mean absolute error (1/n*Σ|pi-ri|), Mean squared error (1/n*Σ(pi-ri)²), Root mean squared error (sqrt(1/n*Σ(pi-ri)²)), Mean signed difference (1/n*Σ(pi-ri)), Mean absolute percentage error 1/n * Σ((|ri - pi|)/ |ri|), Adjusted R²=1-(1-R²)(n-1)/(n-p-1) (can be negative!). The computed values can be inspected in the node's view and/or further processed using the output table.
Options
Output Ports
- The computed statistical measures:
- R² - coefficient of determination, 1-SS_res/SS_tot
- Mean squared error - 1/n*Σ((p_i-r_i)²)
- Mean absolute error - 1/n*Σ|p_i-r_i|
- Root mean squared error - Sqrt(1/n*Σ((p_i-r_i)²))
- Mean signed difference - 1/n*Σ(p_i - r_i)
- Mean absolute percentage error 1/n * Σ((|r_i - p_i|)/|r_i|)
- Adjusted R²1-(1-R²)(n-1)/(n-p-1)
Views
- Statistics
- A table with the statistical measures
Workflows
[ISPRENL S11] Group 5 MCO2 WorkflowKNIME Hub- 001_TS_predikce_SARIMA_basicKNIME Hub
- 01_Accessing_Transforming_and_Modeling_Time_SeriesKNIME Hub
- 01_Accessing_Transforming_and_Modeling_Time_SeriesKNIME Hub
- 01_Accessing_Transforming_and_Modeling_Time_SeriesKNIME Forum
- Show all 985 workflows
Links
- No links available
Developers
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