PowerPoint Presentation - Time Series Analysis in AFNI

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Multiple Regressors: Cartoon

• Red curve = signal model for class #1

• Green curve = signal model for #2

• Blue curve =

b1×#1+b2×#2

where b1 and b2 vary from 0.1 to 1.7 in the animation

• Goal of regression is to find b1 and b2 that make the blue curve best fit the data time series

• Gray curve =

1.5×#1+0.6×#2+noise

= simulated data