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I am just beginning to learn R and am having an issue that is leaving me fairly confused. My goal is to create an empty vector and append elements to it. Seems easy enough, but solutions that I have seen on stackoverflow don't seem to be working.
To wit,
> a <- numeric() > append(a,1) [1] 1 > a numeric(0) I can't quite figure out what I'm doing wrong. Anyone want to help a newbie?
477
We can insert all types of vectors in one empty vector.
To create an empty list in R, use the vector() function. The vector() function takes two arguments: mode and length. The mode is, in our case, is a list, and length is the number of elements in the list, and the list ends up actually empty, filled with NULL.
To append elements to a Vector in R, use the append() method. The append() is a built-in method that adds the various integer values into a Vector in the last position.
append does something that is somewhat different from what you are thinking. See ?append.
In particular, note that append does not modify its argument. It returns the result.
You want the function c:
> a <- numeric() > a <- c(a, 1) > a [1] 1 If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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