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Crontab Day of the Week syntax
In crontab does the Day of the Week field run from 0 - 6 or 1 -7 ?
3 Answers
3
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Why `null >= 0 && null
I had to write a routine that increments the value of a variable by 1 if its type is number and assigns 0 to the variable if not, where the variable is initially null or undefined .
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Java regex capturing groups indexes
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183
Capturing and grouping
Capturing group (pattern) creates a group that has capturing property....
str performance in python
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105
'%s' % 100000 is evaluated by the compiler and is equivalent to a constant at run-time.
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Can a for loop increment/decrement by more than one?
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edited Oct 9 '12 at 23:23
answered Oct 9 '12 at 23:18
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R - Concatenate two dataframes?
...ine adds column b to data frame b.
Results
> a <- data.frame(a=c(0,1,2), b=c(3,4,5), c=c(6,7,8))
> a
a b c
1 0 3 6
2 1 4 7
3 2 5 8
> b <- data.frame(a=c(9,10,11), c=c(12,13,14))
> b
a c
1 9 12
2 10 13
3 11 14
> b$b <- NA
> b
a c b
1 9 12 NA
2 10 13 NA
3 11 1...
Sass - Converting Hex to RGBa for background opacity
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edited Jan 23 '19 at 13:18
Daniel Werner
1,2201616 silver badges2525 bronze badges
answered J...
How to pretty-print a numpy.array without scientific notation and with given precision?
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14 Answers
14
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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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src/lxml/etree_defs.h:9:31: fatal error: libxml/xmlversion.h: No such file or directory
...t-devel & libxml2-devel using
sudo apt-get install libxml2-dev libxslt1-dev
After installing follow the above one
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