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How can I create a two dimensional array in JavaScript?
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var items = [
[1, 2],
[3, 4],
[5, 6]
];
console.log(items[0][0]); // 1
console.log(items[0][1]); // 2
console.log(items[1][0]); // 3
console.log(items[1][1]); // 4
console.log(items);
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Find column whose name contains a specific string
...that match:
import pandas as pd
data = {'spike-2': [1,2,3], 'hey spke': [4,5,6], 'spiked-in': [7,8,9], 'no': [10,11,12]}
df = pd.DataFrame(data)
spike_cols = [col for col in df.columns if 'spike' in col]
print(list(df.columns))
print(spike_cols)
Output:
['hey spke', 'no', 'spike-2', 'spiked-in...
What does numpy.random.seed(0) do?
...numbers predictable
>>> numpy.random.seed(0) ; numpy.random.rand(4)
array([ 0.55, 0.72, 0.6 , 0.54])
>>> numpy.random.seed(0) ; numpy.random.rand(4)
array([ 0.55, 0.72, 0.6 , 0.54])
With the seed reset (every time), the same set of numbers will appear every time.
If the r...
Remove Application Insight from application on Visual Studio 2013
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edited Apr 23 '14 at 20:46
answered Apr 23 '14 at 20:41
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Finding the Eclipse Version Number
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104
(Update September 2012):
MRT points out in the comments that "Eclipse Version" question referen...
Using python's eval() vs. ast.literal_eval()?
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answered Mar 4 '13 at 8:52
VolatilityVolatility
25.6k66 gold badges6868 silver badges8383 bronze badges
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Deleting all files in a directory with Python
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yugr
11.4k33 gold badges2828 silver badges6262 bronze badges
answered Jan 3 '10 at 16:02
mikumiku
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Efficient string concatenation in C++
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edited Mar 16 '12 at 13:41
codeling
9,06344 gold badges3333 silver badges6060 bronze badges
answered M...
How do you add an array to another array in Ruby and not end up with a multi-dimensional result?
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edited Jul 23 '14 at 19:10
answered Nov 26 '09 at 5:09
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Microsoft.Jet.OLEDB.4.0' provider is not registered on the local machine
...T 3.5 in a 32 bit Windows 2008 server. When deployed the application in a 64 bit server it shows the error "Microsoft.Jet.OLEDB.4.0' provider is not registered on the local machine ".
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