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Is there a more elegant way of adding an item to a Dictionary safely?
...the indexer is clearly the right answer for your specific problem, another more general answer to the problem of adding additional functionality to an existing type would be to define an extension method.
Obviously this isn't a particularly useful example, but something to bear in mind for the next...
Simulate delayed and dropped packets on Linux
... distribution
Typically, the delay in a network is not uniform. It is more common to use a something like a normal distribution to describe the variation in delay. The netem discipline can take a table to specify a non-uniform distribution.
# tc qdisc change dev eth0 root netem delay 100ms 20m...
Factors in R: more than an annoyance?
...ng, merging and generally manipulating the data, factors are a total pain. More recently, as in the past few years a lot of the functions have improved to handle the factors better. For instance, rbind plays nicely with them. I still find it a total nuisance to have left over empty levels after a su...
Check if a program exists from a Makefile
...t makes for a lot of extra typing as well as processing time when you make more than one target at a time.
The solution provided by 0xf can test for an executable without making a target. That saves a lot of typing and execution time when there are multiple targets that can be built either separate...
Combine two or more columns in a dataframe into a new column with a new name
...::mutate(). Sorry, just trying to be helpful - I won't pollute the site anymore and abstain from future postings.
– sbha
Mar 27 '19 at 22:44
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What is recursion and when should I use it?
...ion was called
Doing all of these steps takes time, usually a little bit more than it takes to iterate through a loop. However, the real problem is in step #1. When many programs start, they allocate a single chunk of memory for their stack, and when they run out of that memory (often, but not a...
Why shouldn't I use “Hungarian Notation”?
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How can I break up this long line in Python?
...you go about formatting a long line such as this? I'd like to get it to no more than 80 characters wide:
5 Answers
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How does `scp` differ from `rsync`?
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Also, I would guess scp is more likely to be available on a Unix-like system, so you prevent an annoying "command not found" now and then.
– Rafa
May 6 '14 at 21:58
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How to delete from a text file, all lines that contain a specific string?
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One more note for Mac OS X users: for some reason, the -i flag requires an argument to be passed, even if it's just an empty string, like sed -i '' '/pattern/d' ./infile.
– geerlingguy
Oct 2...