1

This post says

This is all in the context of the data-generating distribution (or underlying distribution of the data). You can check another answer I made for more details on this.

Remove the "in the context of ..." part, the first sentence is "This is all".

Neither cambridge or oxford gives a definition or explanation.

"this is all" is part of "this is all I know" or "this is all I have", what does "this is all" mean here?

0
1

Are you sure you are parsing this right? IMO, it means

This is all in the context of... = all of this is in the context of...

where all is an adverb instead of a pronoun.

0

In the link provided by you the order of words is wrong.

The correct statement would be “This all is in the context of ...”

You must log in to answer this question.