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How to split/partition a dataset into training and test datasets for, e.g., cross validation?
... You should not resample for your cross validation set. The entire idea is that the CV set has never been seen by your algo before. The training and test sets are used to fit the data, so of course you'll get good results if you include those in your CV set. I want to upvote this answer beca...
A more pretty/informative Var_dump alternative in PHP? [closed]
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well the idea was that the css is supposed to be compressed along with the js so as to interfere as little as possible with the actual output. Of course, pretty indentation of the generated source was planned too, but I currently have...
Python argparse: Make at least one argument required
...rocess or --upload must be given")
Though, probably it would be a better idea to use subcommands instead.
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Best way to split string into lines
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Any idea in terms of performance (compared to string.Split or Regex.Split)?
– Uwe Keim
Jan 25 '19 at 7:49
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Is there common street addresses database design for all addresses of the world? [closed]
...es from lots of different countries in a standard set of fields. The basic idea of a named access route (thoroughfare) which the named or numbered buildings are located on is fairly standard, except in China sometimes. Other near universal concepts include: naming the settlement (city/town/village),...
How do I start my app on startup?
...n in there you can use startActivity() to start your app. It's not a good idea to put a screen in front of the user if they didn't ask for it, though.
– Sean Schulte
Jun 17 '11 at 22:10
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Python nonlocal statement
...eturn a generator like with yield - yield actually returns a generator. My idea is not to use yield and instead maybe use nonlocal or another solution
– Dejell
Dec 5 '13 at 17:40
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How to convert java.util.Date to java.sql.Date?
...which represents a moment on the timeline in UTC. An Instant is similar in idea to a java.util.Date. But note that Instant has a resolution up to nanoseconds while java.util.Date has only milliseconds resolution.
To convert, use new methods added to the old classes. For example, java.util.Date.from(...
Maximum number of threads per process in Linux?
...way to increase the total number of threads (although that's rarely a good idea).
– Randy Howard
Jan 23 '16 at 18:22
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How do I get the key at a specific index from a Dictionary in Swift?
...t about it is counter intuitive? Dictionaries are key, value pairs, so the idea of an index doesn't fix. Arrays are accessed by index, so this turns a dictionary INTO an Array, and then accesses the array by it's index. A dictionary like ["a": 1, "b": 2], can be turned into an array of dictionaries ...