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Printing a variable memory address in swift
... var aString : String = "THIS IS A STRING"
NSLog("%p", aString.core._baseAddress) // _baseAddress is a COpaquePointer
// example printed address 0x100006db0
This prints the memory address of the string, if you open XCode -> Debug Workflow -> View Memory and go to the printed addre...
The simplest way to resize an UIImage?
... = UIGraphicsImageRenderer(size: newSize)
let image = renderer.image { _ in
self.draw(in: CGRect.init(origin: CGPoint.zero, size: newSize))
}
return image.withRenderingMode(self.renderingMode)
}
And here's the Objective-C version:
@implementation UIImage (ResizeCategory)
- (U...
How to compute the similarity between two text documents?
... package, computing cosine similarities is as easy as
from sklearn.feature_extraction.text import TfidfVectorizer
documents = [open(f) for f in text_files]
tfidf = TfidfVectorizer().fit_transform(documents)
# no need to normalize, since Vectorizer will return normalized tf-idf
pairwise_similarity ...
How do I keep track of pip-installed packages in an Anaconda (Conda) environment?
...n import it, though. You have to do conda install C:\...PACKAGE-0.0.0-py27_0.tar.bz2 as described in stackoverflow.com/a/20750388/125507
– endolith
Oct 16 '15 at 1:52
...
What is 'Pattern Matching' in functional languages?
... `Cons`, we only want the first part; that's the list's head.
head (Cons h _) = h
Since List a values can be of two different kinds, we need to handle each one separately; this is the pattern matching. In head x, if x matches the pattern Nil, then we run the first case; if it matches the pattern ...
os.walk without digging into directories below
...
Use the walklevel function.
import os
def walklevel(some_dir, level=1):
some_dir = some_dir.rstrip(os.path.sep)
assert os.path.isdir(some_dir)
num_sep = some_dir.count(os.path.sep)
for root, dirs, files in os.walk(some_dir):
yield root, dirs, files
...
Remove unwanted parts from strings in a column
... the substring/pattern to match, and the substring to replace it with.
pd.__version__
# '0.24.1'
df
time result
1 09:00 +52A
2 10:00 +62B
3 11:00 +44a
4 12:00 +30b
5 13:00 -110a
df['result'] = df['result'].str.replace(r'\D', '')
df
time result
1 09:00 52
2 10:0...
IllegalStateException: Can not perform this action after onSaveInstanceState with ViewPager
...d onSaveInstanceState(Bundle outState) {
outState.putString("WORKAROUND_FOR_BUG_19917_KEY", "WORKAROUND_FOR_BUG_19917_VALUE");
super.onSaveInstanceState(outState);
}
In the end the proper solution was (as seen in the comments) to use :
transaction.commitAllowingStateLoss();
when adding ...
Pros and cons of using sbt vs maven in Scala project [closed]
... answered Jul 1 '12 at 12:25
0__0__
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...
Batch file to delete files older than N days
... I used this syntax on Win Server 2008: forfiles /P "C:\Mysql_backup" /S /M *.sql /D -30 /C "cmd /c del @PATH"
– jman
Apr 18 '11 at 8:42
...