Row timings
Similar to the previous example, the objects mat and df are a matrix and a data frame, respectively. Using microbenchmark(), how long does it take to select the first row from each of these objects?
To make the comparison fair, just use mat[1, ] and df[1, ].
Latihan ini adalah bagian dari kursus
Writing Efficient R Code
Petunjuk latihan
The microbenchmark package is already loaded in your workspace.
Latihan interaktif praktis
Cobalah latihan ini dengan menyelesaikan kode contoh berikut.
# Which is faster, mat[1, ] or df[1, ]?
microbenchmark(___, ___)