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Why use double indirection? or Why use pointers to pointers?
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edited Jun 28 '13 at 20:29
bharat.chandak100
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answered Apr 7 '1...
JavaScript arrays braces vs brackets
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answered Feb 26 '11 at 20:32
johusmanjohusman
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Accessing elements of Python dictionary by index
..., 'Mexican':10, 'Chinese':5},
'Grapes':{'Arabian':'25','Indian':'20'} }
print myDict['Apple']['American']
as others suggested. If instead the questions is, you don't know whether 'Apple' as a fruit and 'American' as a type of 'Apple' exist when you read an arbitrary file into your dict...
Can I get git to tell me all the files one user has modified?
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edited Jun 14 '11 at 20:12
answered Jun 14 '11 at 20:04
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GridLayout and Row/Column Span Woe
...as well.
– kturney
Aug 10 '12 at 14:20
5
I find that this solution only works with <Gridlayout...
Standardize data columns in R
... y = runif(10, 3, 5),
z = runif(10, 10, 20))
dat
dat2 <- dat %>% mutate_at(c("y", "z"), ~(scale(.) %>% as.vector))
dat2
which gives me this:
> dat
x y z
1 29.75859 3.633225 14.56091
2 30.05549 3.605387 12.65187
3 30.21689 ...
Why is the shovel operator (
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answered Jan 13 '11 at 20:59
Nemo157Nemo157
3,3691515 silver badges2727 bronze badges
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What is “above-the-fold content” in Google Pagespeed?
...t that's not the case.
– x-yuri
Aug 20 '17 at 11:26
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RGB to hex and hex to RGB
...1);
}
alert(rgbToHex(0, 51, 255)); // #0033ff
Update 3 December 2012
Here's a version of hexToRgb() that also parses a shorthand hex triplet such as "#03F":
function hexToRgb(hex) {
// Expand shorthand form (e.g. "03F") to full form (e.g. "0033FF")
var shorthandRegex = /^#?([a...
Linear Regression and group by in R
... year | state, data = d)
Coefficients:
(Intercept) year
CA -1.34420990 0.17139963
NY 0.00196176 -0.01852429
Degrees of freedom: 20 total; 16 residual
Residual standard error: 0.8201316
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