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The SQL OVER() clause - when and why is it useful?
..., i.e. like this:
SELECT
orig.[Partition],
orig.Value,
orig.Value * 100.0 / agg.TotalValue AS ValuePercent
FROM OriginalRowset orig
INNER JOIN (
SELECT
[Partition],
SUM(Value) AS TotalValue
FROM OriginalRowset
GROUP BY [Partition]
) agg ON orig.[Partition] = agg.[P...
CSS customized scroll bar in div
...ath.max(30, (offsetDim * offsetDim / scrollDim));
slider.style.width = 100 * sliderPx / offsetDim + '%';
slider.className = 'slider';
bar.className = isX ? 'h bar' : 'v bar';
bar.appendChild(slider);
myscroll.appendChild(bar);
bar.addEventListener('click', bar_clicked);
...
Get the first item from an iterable that matches a condition
... the next built-in and so I assume that for some mysterious reason they're 100% focused on versions 2.5 and older -- without mentioning the Python-version issue (but then I don't see that mention in the answers that do mention the next built-in, which is why I thought it necessary to provide an answ...
Why is “using namespace std;” considered bad practice?
...don't find std:: painful enough to employ using directives even once every 100 kLoC even where it was allowed to be used.
Bottom line: Explicitly prefixing everything doesn't do any harm, takes very little getting used to, and has objective advantages. In particular, it makes the code easier to i...
What is the difference between require() and library()?
...
100
In addition to the good advice already given, I would add this:
It is probably best to avoid ...
How to plot two histograms together in R?
...ngle numeric column which lists the length of all measured carrots (total: 100k carrots) and cucumbers (total: 50k cucumbers).
...
NumPy: function for simultaneous max() and min()
...90
And now we're in a place where we can test it:
import timeit
size = 100000
repeat = 10000
print timeit.timeit(
'np.min(a); np.max(a)',
setup='import numpy as np; a = np.arange(%d, dtype=np.float32)' % size,
number=repeat), " # numpy min/max"
print timeit.timeit(
'untitled.mi...
Shading a kernel density plot between two points.
...ste of Dirk's code) and use known x values:
set.seed(1)
draws <- rnorm(100)^2
dens <- density(draws)
plot(dens)
q2 <- 2
q65 <- 6.5
qn08 <- -0.8
qn02 <- -0.2
x1 <- min(which(dens$x >= q2))
x2 <- max(which(dens$x < q65))
x3 <- min(which(dens$x >= qn...
TSQL - Cast string to integer or return default value
...
Yes :). Try this:
DECLARE @text AS NVARCHAR(10)
SET @text = '100'
SELECT CASE WHEN ISNUMERIC(@text) = 1 THEN CAST(@text AS INT) ELSE NULL END
-- returns 100
SET @text = 'XXX'
SELECT CASE WHEN ISNUMERIC(@text) = 1 THEN CAST(@text AS INT) ELSE NULL END
-- returns NULL
ISNUMERIC() has ...
How to create a UIView bounce animation?
...
+100
A simpler alternative to UIDynamicAnimator in iOS 7 is Spring Animation (a new and powerful UIView block animation), which can give ...