Ti 84 emulator software linux update#
A colleague of mine recently had his whole analysis suddenly return weird results after a routine update of an add-on package, because someone decided to swap the order of the longitude and latitude arguments to a function for no particular reason. They are core language functions, and unfortunately these examples are not exceptional. But the kicker is in the last sentence: not only are the exact workings of this function explicitly undocumented, they are also subject to change without notice! Note that these are not functions from some obscure package that I pulled off of somebodies blog. This is a somewhat arbitrary inconsistency, and it leaves the reader to wonder if there are specific attributes or lists for which this doesn't count. Second, apparently attributes are removed for atomic vectors, but not "in general" for lists. In practice, lists and vectors are used in rather different ways so their exact relation is not so relevant, and it doesn't make much sense for the help page to throw them together like this. According to the R language definition however, a list is a kind of vector.
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So, by the normal Liskov rules, one could say that a vector is a kind of list in which the types of the elements are all identical. In R, a vector is an ordered collection of elements all of the same type, while a list is an ordered collection of elements of (possibly) different types. The default method handles 24 input types and 12 values of ‘type’: the details of most coercions are undocumented and subject to change.įirst, a "vector of type list" is actually just a list. All attributes are removed from the result if it is of an atomic mode, but not in general for a list result.
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Value: For ‘as.vector’, a vector (atomic or of type list).