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Factors in R: more than an annoyance?
... levels. My brain just cannot remember them and I have to relearn it every time I use it. Recoding should just be a lot easier than it is.
R's string functions are quite easy and logical to use. So when manipulating I generally prefer characters over factors.
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How can I detect if a browser is blocking a popup?
...lease, can you specify what you mean with "not working"? An error at parse time? An error at runtime? The popup opens but it is marked as blocked? The popup is blocked but it is marked as open? I don't see any reason why explorer would fail this, unless calling focus() on NULL is allowed in which ca...
Creating a range of dates in Python
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Marginally better...
base = datetime.datetime.today()
date_list = [base - datetime.timedelta(days=x) for x in range(numdays)]
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Odd behavior when Java converts int to byte?
...t to represent it as an int (32 bits) you simply copy the 1 to the left 24 times.
Now, one way to read a negative two's complement number is to start with the least significant bit, move left until you find the first 1, then invert every bit afterwards. The resulting number is the positive version ...
SQL Server Insert if not exists
...@Marc Durdin for pointing)
Note that under high load, this will still sometimes fail, because a second connection can pass the IF NOT EXISTS test before the first connection executes the INSERT, i.e. a race condition. See stackoverflow.com/a/3791506/1836776 for a good answer on why even wrapping in...
What and When to use Tuple? [duplicate]
...s you supply one value to the method that the thread executes at
startup time. If you supply a Tuple<T1, T2, T3> object as the method
argument, you can supply the thread’s startup routine with three
items of data.
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Bulk Insertion in Laravel using eloquent ORM
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@CanVural what should we do to update/create timestamps also?
– Milan Maharjan
Jul 21 '15 at 11:28
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List all indexes on ElasticSearch server?
... @IvanYurchenko I've implemented my elasticsearch plugin long time ago. Very possible that the APIs have changed since and it doesn't work anymore.. Best is to use the '_aliases' command. It will also provide information about all indices in elasticsearch.
– pawelo...
HTML: Include, or exclude, optional closing tags?
...undant to have to type <img src="blah" alt="blah"></img> every time.
I almost always use the optional tags (unless I have a very good reason not to) because it lends to more readable and updateable code.
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Reading large text files with streams in C#
...ch is fine loading. But when they go beyond 100 MB the process has a hard time (as you'd expect).
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