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Remove a folder from git tracking
I need to exclude a folder (name uploads) from tracking. I tried to run
6 Answers
6
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How to round a number to significant figures in Python
..., -3)
1000.0
Thus if you need only most significant digit:
>>> from math import log10, floor
>>> def round_to_1(x):
... return round(x, -int(floor(log10(abs(x)))))
...
>>> round_to_1(0.0232)
0.02
>>> round_to_1(1234243)
1000000.0
>>> round_to_1(13)
...
What is the most efficient string concatenation method in python?
...cases. For example, I can increase my sample so that my current code goes from running at 0.17 seconds to 170 seconds. Well I want to test at larger sample sizes since there is less variation there.
– Flipper
Jan 8 '15 at 7:57
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What is the difference between hg forget and hg remove?
I want mercurial to remove several files from the current state of the repository. However, I want the files to exist in prior history.
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What does `someObject.new` do in Java?
...
It's the way to instantiate a non-static inner class from outside the containing class body, as described in the Oracle docs.
Every inner class instance is associated with an instance of its containing class. When you new an inner class from within its containing class it use...
Creating dataframe from a dictionary where entries have different lengths
...( A = np.array([1,2]), B = np.array([1,2,3,4]) )
In[21]: df = pd.DataFrame.from_dict(my_dict, orient='index')
In[22]: df
Out[22]:
0 1 2 3
A 1 2 NaN NaN
B 1 2 3 4
In[23]: df.transpose()
Out[23]:
A B
0 1 1
1 2 2
2 NaN 3
3 NaN 4
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JavaScript equivalent of PHP's in_array()
Is there a way in JavaScript to compare values from one array and see if it is in another array?
20 Answers
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Scala 2.8 breakOut
...efinition of map:
def map[B, That](f : (A) => B)(implicit bf : CanBuildFrom[Repr, B, That]) : That
Note that it has two parameters. The first is your function and the second is an implicit. If you do not provide that implicit, Scala will choose the most specific one available.
About breakOu...
Save classifier to disk in scikit-learn
...blib is included in scikit-learn:
>>> import joblib
>>> from sklearn.datasets import load_digits
>>> from sklearn.linear_model import SGDClassifier
>>> digits = load_digits()
>>> clf = SGDClassifier().fit(digits.data, digits.target)
>>> clf.sco...
Convert string with commas to array
... @FarzadYZ Be careful with that (using eval). If the array contains values from client side input this will be insecure.
– Wilt
May 9 '16 at 12:01
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