How to Draw Taylor Diagram with Negative Correlation Values

Published: 25 September 2023
on channel: AgriMetSoft Team
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How to Draw #Taylor_Diagram with Negative Correlation
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A Taylor diagram is typically used to visually compare the similarity between observed and simulated data, particularly in the context of climate or meteorological models. The standard Taylor diagram assumes that the correlation and standard deviation values are positive, but you can adapt the diagram to include negative correlations if necessary.
When working with Taylor diagrams that include both negative and positive correlation values, the Semicircle Taylor diagram is the more appropriate choice. Here's why:
To clarify:

1. Semicircle Taylor Diagram:
A semicircle Taylor diagram represents correlation values along the semicircular arc, ranging from -1 (perfect negative correlation) to 1 (perfect positive correlation).
It is indeed suitable for visualizing both positive and negative correlation values.

2. Quarter Taylor Diagram:
A quarter Taylor diagram is designed to handle positive correlation values only, typically ranging from 0 (no correlation) to 1 (perfect positive correlation).
It does not accommodate negative correlations effectively.

If your dataset includes both positive and negative correlation values, a semicircle Taylor diagram is the appropriate choice for visualizing the agreement between observed and simulated data.


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