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Select rows of a matrix that meet a condition
...cases.
If you want to use column names to select columns then you would be best off converting it to a dataframe with
mf <- data.frame(m)
Then you can select with
mf[ mf$a == 16, ]
Or, you could use the subset command.
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Sharing src/test classes between modules in a multi-module maven project
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@StasS probably best you open a separate question about that.
– Duncan Jones
Aug 21 '15 at 11:39
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ASP.NET MVC partial views: input name prefixes
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Thanks for the link, this is by far the best option listed here
– B Z
Mar 28 '11 at 18:45
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Go build: “Cannot find package” (even though GOPATH is set)
... doesn't need to be located on github.com for it to build. However, it's a best practice to structure your modules as if they will eventually be published.
Understanding what happens when trying to get a package
There's a great article here that talks about what happens when you try to get a package...
What is the difference between Θ(n) and O(n)?
...as T(n) = a*n+b. For small values of n (e.g. n=1 or 2) this may not be the best way of describing the behaviour - perhaps you have some initialization code that takes a lot longer than f(i).
– kara deniz
Oct 6 '14 at 18:22
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Java switch statement multiple cases
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It is better than nothing, some people take that as the best answer, simple and direct
– D4rWiNS
Mar 29 '14 at 22:05
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Compress files while reading data from STDIN
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Yes, use gzip for this. The best way is to read data as input and redirect the compressed to output file i.e.
cat test.csv | gzip > test.csv.gz
cat test.csv will send the data as stdout and using pipe-sign gzip will read that data as stdin. Make s...
How to simplify a null-safe compareTo() implementation?
...he.commons.lang3) is "legacy/poorly maintained/low-quality" is false or at best baseless. Commons Lang3 is easy to understand and use, and it's actively maintained. It's probably my most oft-used library (apart from Spring Framework and Spring Security) - the StringUtils class with its null-safe met...
When and how should I use a ThreadLocal variable?
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This is the best explanation of the use of TL.
– Dexter
Mar 15 '18 at 17:39
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Switch branch names in git
... development strategy to prevent issues like this. One that seems to work best for me is to never do development directly on my master branch. Regardless of the changes I'm making, I always create a new branch for new code:
git checkout -b topic/topic_name master
From there, I can push out the...