Fig. 1 | Scientific Reports

Fig. 1

From: Understanding Peelle’s Pertinent Puzzle bias in generalized least squares regression through eigenspectrum analysis

Fig. 1

Frequentist validation approach for GLS estimates using the true versus estimated DCM. The former, in green (color online), is considered the ground truth and is seen to always be centered around the true mean. The PPP bias towards zero is demonstrated by using the estimated DCM, shown in pink (color online). This bias is shown to increase with an increase in observed data, N.

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