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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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Read stream twice
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Captain Man
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answered Feb 29 '12 at 14:59
Paul GrimePaul Grime
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Naming returned columns in Pandas aggregate function? [duplicate]
...data('Loblolly')
print(data.head())
# height age Seed
# 1 4.51 3 301
# 15 10.89 5 301
# 29 28.72 10 301
# 43 41.74 15 301
# 57 52.70 20 301
df = data.groupby('Seed').agg(
{'age':['sum'],
'height':['mean', 'std']})
print(df.head())
# age height ...
How to add a spinner icon to button when it's in the Loading state?
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edited Apr 3 '16 at 18:33
SHAZ
2,41566 gold badges2020 silver badges2929 bronze badges
an...
How to split a delimited string into an array in awk?
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Have you tried:
echo "12|23|11" | awk '{split($0,a,"|"); print a[3],a[2],a[1]}'
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Putting text in top left corner of matplotlib plot
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3 Answers
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How to run cron once, daily at 10pm
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376
It's running every minute of the hour 22 I guess. Try the following to run it every first minu...
Regex group capture in R with multiple capture-groups
... in the match (and one for the whole match):
> s = c("(sometext :: 0.1231313213)", "(moretext :: 0.111222)")
> str_match(s, "\\((.*?) :: (0\\.[0-9]+)\\)")
[,1] [,2] [,3]
[1,] "(sometext :: 0.1231313213)" "sometext" "0.1231313213"
[2,] "(moretext ::...
Where is the .NET Framework 4.5 directory?
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153
.NET 4.5 is an in place replacement for 4.0 - you will find the assemblies in the 4.0 directory....