If you recently adopted a new gray cat or kitten, one of the first things you will want to do is choose a special name, and there are many gray cat names to choose from. You can find inspiration for ... AOL: 8 Grey Cat Breeds Vets Swear Are the Calmest for Family Homes Grey cats, also called silver or blue cats, aren’t just stunning—they’re known for their easygoing, kind personalities.

Understanding the Context

These 7 grey cat breeds are celebrated for being affectionate and ... 8 Grey Cat Breeds Vets Swear Are the Calmest for Family Homes cat is valid only for atomic types (logical, integer, real, complex, character) and names. It means you cannot call cat on a non-empty list or any type of object. In practice it simply converts arguments to characters and concatenates so you can think of something like as.character() %>% paste().

Key Insights

print is a generic function so you can define a specific implementation for a certain S3 class. The cat <<EOF syntax is very useful when working with multi-line text in Bash, eg. when assigning multi-line string to a shell variable, file or a pipe. Examples of cat <<EOF syntax usage in Bash: linux - How does "cat << EOF" work in bash? - Stack Overflow xnew_from_cat = torch.cat((x, x, x), 1) print(f'{xnew_from_cat.size()}') print() # stack serves the same role as append in lists.

Final Thoughts

i.e. it doesn't change the original # vector space but instead adds a new index to the new tensor, so you retain the ability # get the original tensor you added to the list by indexing in the new dimension