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The Relevance chart compares the Signals time series data (in grey, that is the metric being analyzed (represented with grey lines) with that of the baseline data (in green lines). Baseline refers to the overall dataset in which the Signal is generated, along with any access filters if applied. If Signal filtering is applied, then the baseline will include these filters as well.

Note that Relevance information is not available where the metric being analyzed contains a mix of positive and negative signed values. However if all values are either positive or negative, then relevance will be calculated.

Click on the Relevance tab to understand the relevance and importance of this Signal in relation to all your other data. 

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