Timeline for Independence of error in Linear Regression

8 events

when toggle format	what		by	license	comment
May 17, 2015 at 3:19	comment	added	Glen_b		Thanks. I've edited this information into your question. The reason I asked is that most statisticians would not typically use a Roman letter both for data ($y$) and for population parameters ($x$) -- mostly reserving Greek letters for the latter (usually they'd tend to see $y-X\beta$ where you have $y-Ax$). Lower case $x$ might perhaps then represent a row or column from $X$. Given that $x$ could tend to be misinterpreted, I thought it better to be explicit.
May 17, 2015 at 3:14	history	edited	Glen_b	CC BY-SA 3.0	edited to include definitions of terms.
May 17, 2015 at 3:09	comment	added	Devil		$y_i$ is the observation, $A$ is the known design matrix, $x$ is slopes, we're estimating here.
May 17, 2015 at 3:07	vote	accept	Devil
May 16, 2015 at 3:00	answer	added	Glen_b		timeline score: 5
May 16, 2015 at 2:48	comment	added	Glen_b		Can you define the notation without requiring us to go read the book? What's $x$ here? What's $A$? What's $a_i$?
May 15, 2015 at 23:57	history	edited	Jeremy Miles	CC BY-SA 3.0	Fixed typo
May 15, 2015 at 23:09	history	asked	Devil	CC BY-SA 3.0