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Mapping a function on the values of a map in Clojure
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11 Answers
11
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New Array from Index Range Swift
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183
This works for me:
var test = [1, 2, 3]
var n = 2
var test2 = test[0..<n]
Your issue cou...
Convert columns to string in Pandas
...will convert keys to valid json (and therefore your keys to strings):
In [11]: df = pd.DataFrame([['A', 2], ['A', 4], ['B', 6]])
In [12]: df.to_json()
Out[12]: '{"0":{"0":"A","1":"A","2":"B"},"1":{"0":2,"1":4,"2":6}}'
In [13]: df[0].to_json()
Out[13]: '{"0":"A","1":"A","2":"B"}'
Note: you can p...
No provider for “framework:jasmine”! (Resolving: framework:jasmine)
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181
I had the same error after creating a new project the yeoman angular generator (yo angular).
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Python: Select subset from list based on index set
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126
You could just use list comprehension:
property_asel = [val for is_good, val in zip(good_obje...
Find indices of elements equal to zero in a NumPy array
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numpy.where() is my favorite.
>>> x = numpy.array([1,0,2,0,3,0,4,5,6,7,8])
>>> numpy.where(x == 0)[0]
array([1, 3, 5])
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How to avoid overflow in expr. A * B - C * D
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15 Answers
15
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List of tuples to dictionary
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185
Just call dict() on the list of tuples directly
>>> my_list = [('a', 1), ('b', 2)]
&...
Why is GHC so large/big?
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188
It's a bit silly really. Every library that comes with GHC is provided in no less than 4 flav...
pandas read_csv and filter columns with usecols
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114
The answer by @chip completely misses the point of two keyword arguments.
names is only nece...