Is it correct to say one 'estimates' or 'measures' r-squared? I am writing a report and am unsure about whether is correct to say one 'measures' r-squared or whether one 'estimates' it. I know the two words have two different semantic meanings, probably related to whether you are identifying the 'true' value or not, but as a non-statistician I am finding it hard to decide which is more appropriate.
Or perhaps neither is suitable and a different word is better.
I have searched around a fair amount and couldn't find an obvious answer.

Although some theory relates $R^2$ to a certain "true" value, it is mostly not used and interpreted as an estimator of that value, but rather as a characteristic of an empirical fit, and as such I'd say it is "computed" and not "estimated". I wouldn't say "measured" either (which goes against my intuition but I have difficulties explaining why), although one could probably defend both "measured" and "estimated" if necessary.
