#SarahMcBride points out #fatalflaw in Trump’s #executiveorder: ‘He just declared everyone a #woman’

All #human #embryos follow a “#female” #developmental #path until the activation of the #SRY #gene several weeks after #conception, which sparks #sexualdifferentiation.

https://www.thepinknews.com/2025/01/22/sarah-mcbride-president-donald-trump-executive-orders/

#VectorAutoRegression is a pure feedback model, similar to poles in the pole-zero representation of z-transform filters. To add zeros to the model is quite simple:

$$ y_t = \sum_{i=1}^p A_i y_{t - i} + \sum_{i=0}^q B_i x_{t-i}$$

and then add the $x$ vectors and $B$ matrices to the least squares stuff. I think the jargon for this is #VARMA, for Vector Auto-Regressive Moving Average.

I worked it through and coded up most of it before realizing a #FatalFlaw : I need the $x$ input data corresponding to the $y$ output data to do the regression to estimate the $A$ and $B$ parameter matrices, while so far I've just been using WAV files as $y$ series, which means I don't have any $x$.