10.38 Locating Datasets in Memory
20200603 We can see that ds and
weather reference the same dataset in memory using
lobstr::ref() which shows actual memory addresses of the
data.
This gets rather technical, but the strings of digits beginning with
0x are the actual memory addresses—that is, they are
pointers to a direct location in our computer’s memory. The
0x at the beginning of each identifies that a hexadecimal
scheme is used, thus we see digits 0 to 9 and then the letters a, b,
c, d, e, and f being used (16 digits).
The addresses recorded for weather and ds,
including the addresses where we find the actual variables (columns)
within each dataset, are identical.
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