On 11/10/2019 6:44 a.m., Morgan Morgan wrote:
Hi All,
I was looking for a function to find a small matrix inside a larger matrix
in R similar to the one described in the following link:
https://www.mathworks.com/matlabcentral/answers/194708-index-a-small-matrix-in-a-larger-matrix
I couldn't find anything.
The above function can be seen as a "generalisation" of the "which"
function as well as the function described in the following post:
https://coolbutuseless.github.io/2018/04/03/finding-a-length-n-needle-in-a-haystack/
Would be possible to add such a function to base R?
I am happy to work with someone from the R core team (if you wish) and
suggest an implementation in C.
That seems like it would sometimes be a useful function, and maybe
someone will point out a package that already contains it. But if not,
why would it belong in base R?
Duncan Murdoch
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