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filter for complete cases in data.frame using dplyr (case-wise deletion)
... I found df %>% slice(which(complete.cases(.))) performed ~ 20% faster than the filter-approach in the benchmark above.
– talat
Jan 26 '15 at 13:49
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How do I read an entire file into a std::string in C++?
...return string(bytes.data(), fileSize);
}
This solution resulted in about 20% faster execution times than the other answers presented here, when taking the average of 100 runs against the text of Moby Dick (1.3M). Not bad for a portable C++ solution, I would like to see the results of mmap'ing the ...
How can I explicitly free memory in Python?
... helps keep performance up. I've seen this make a significant difference (~20% runtime IIRC)
– RobM
Feb 22 '11 at 18:54
47
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Fast check for NaN in NumPy
...as of numpy 1.8 min will not be slower than sum, on my amd phenom its even 20% faster.
– jtaylor
Jun 14 '14 at 14:54
1
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Best way to iterate through a Perl array
...e right. About 45% faster with for iterating over indices of an array, and 20% faster when iterating over the indices of an array reference (I do access $array->[$i] in the body), over using each in conjunction with while.
– Sinan Ünür
May 8 '12 at 3:48
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Ignore files that have already been committed to a Git repository [duplicate]
... community wiki
13 revs, 13 users 20%takeshin
269
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Benchmarking small code samples in C#, can this implementation be improved?
...se terms that is really loaded. sometimes having an implementation that is 20% faster is significant, sometimes it has to be 100 times faster to be significant. Agree with you on clarity see: stackoverflow.com/questions/1018407/…
– Sam Saffron
Jun 26 '09 at 5...
Picking a random element from a set
...ince index < set.size(), that check is unnecessary overhead. I saw a 10-20% boost in speed, but YMMV. (Also, this compiles without having to add an extra return statement.)
Note that this code (and most other answers) can be applied to any Collection, not just Set. In generic method form:
publi...
Refactoring in Vim
...an actual IDE would perform better for most users. I'd be thinking on a 80-20% kind of situation (even more, with the balance in favor of the IDE).
– Cutberto Ocampo
Sep 22 '15 at 16:41
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How to access session variables from any class in ASP.NET?
... the application re-starts. Note, by performance cost we are looking at a 20% premium in using State Server mode, and serialization costs are added on top of that. As you can imagine this can get expensive. You can avoid some of the serialization overhead by sticking to primitive types (e.g. int,...