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dplyr: “Error in n(): function should not be called directly”
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120
I presume you have dplyr and plyr loaded in the same session. dplyr is not plyr. ddply is not a...
What does the ^ operator do in Java?
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422
The ^ operator in Java
^ in Java is the exclusive-or ("xor") operator.
Let's take 5^6 as exam...
Multiple glibc libraries on a single host
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234
It is very possible to have multiple versions of glibc on the same system (we do that every da...
Correct way to populate an Array with a Range in Ruby
...n create an array with a range using splat,
>> a=*(1..10)
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
using Kernel Array method,
Array (1..10)
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
or using to_a
(1..10).to_a
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
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Count lines of code in all java classes in Android Studio
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245
Go to
https://plugins.jetbrains.com/idea/plugin/4509-statistic
and install the latest version
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MySQL - How to select data by string length
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502
You are looking for CHAR_LENGTH() to get the number of characters in a string.
For multi-byte ...
Scala list concatenation, ::: vs ++
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325
Legacy. List was originally defined to be functional-languages-looking:
1 :: 2 :: Nil // a lis...
Getting and removing the first character of a string
I would like to do some 2-dimensional walks using strings of characters by assigning different values to each character. I was planning to 'pop' the first character of a string, use it, and repeat for the rest of the string.
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Converting a column within pandas dataframe from int to string
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142
In [16]: df = DataFrame(np.arange(10).reshape(5,2),columns=list('AB'))
In [17]: df
Out[17]:
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Running bash script from within python
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answered Dec 6 '12 at 14:42
James Waldby - jwpat7James Waldby - jwpat7
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