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Apply pandas function to column to create multiple new columns?
...on is better than the original pandas' df.assign() method, cuz this is one time per column. Using assign(), if you want to create 2 new columns, you have to use df1 to work on df to get new column1, then use df2 to work on df1 to create the second new column...this is quite monotonous. But your meth...
How to generate a random string of a fixed length in Go?
...al, general solution we're improving is this:
func init() {
rand.Seed(time.Now().UnixNano())
}
var letterRunes = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
func RandStringRunes(n int) string {
b := make([]rune, n)
for i := range b {
b[i] = letterRunes[rand....
Statistics: combinations in Python
... it uses the gammaln function to obtain good precision without taking much time. In the exact case it returns an arbitrary-precision integer, which might take a long time to compute.
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NUnit vs. Visual Studio 2008's test projects for unit testing [closed]
... developed
for NUnit, like row-tests, etc.
Visual Studio tests take a long time
to start up for some reason. This is
better in Visual Studio 2008,
but it is still too slow
for my taste. Quickly running a test
to see if you didn't break something
can take too long. NUnit with
something like Testdri...
How to extract numbers from a string in Python?
...his group does give some false positives (i.e. + is captured by itself sometimes), but is able to handle more forms, like .001, plus it doesn't combine numbers automatically (like in s=2+1)
– DavisDude
Mar 16 '17 at 16:34
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How do you force a CIFS connection to unmount
...own, and anything that touches the CIFS mount now takes several minutes to timeout, and is unkillable while you wait. I can't even run ls in my home directory because there is a symlink pointing inside the CIFS mount and ls tries to follow it to decide what color it should be. If I try to umount i...
How do I print debug messages in the Google Chrome JavaScript Console?
...verything inside brackets? Right now you're evaluating the same stuff four times.
– Dan Rosenstark
Sep 19 '11 at 16:33
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Change default app.config at runtime
...tion works if it is used before the configuration system is used the first time. After that, it doesn't work any more.
The reason:
There exists a class ClientConfigPaths that caches the paths. So, even after changing the path with SetData, it is not re-read, because there already exist cached values...
Quick easy way to migrate SQLite3 to MySQL? [closed]
...if the system is moving to a more powerful product this might be the ideal time to plan for the future of your data.
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Removing first x characters from string?
...
Note that this is longer in code and will also take more time since you have to search for the substring before you replace it. Also: >>> x = 'liplip' >>> x.replace(x[:3], '') ''. Sure you could fix this by having the third parameter (count) = 1 but it would stil...