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Side-by-side plots with ggplot2
... y=c(3*x+eps, 2*x+eps),
case=rep(c("first","second"), each=100))
qplot(x, y, data=X, facets = . ~ case) + geom_smooth()
I am sure there are better tricks in plyr or reshape -- I am still not really up to speed
on all these powerful packages by Hadley.
...
How to write logs in text file when using java.util.logging.Logger
... myFrame.setTitle("LogToFileExample");
myFrame.setSize(300, 100);
myFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
myFrame.setLocationRelativeTo(null);
JPanel pan = new JPanel();
JButton severe = new JButton("severe");
pan.add(severe);
...
How to find all combinations of coins when given some dollar value
...needs a slight correction because it asks "...using 1-, 10-, 25-, 50-, and 100-cent coins?" But then the write up defines the set a as the domain of f but a = {1,5,10,25,50,100}. There should be a 5- in the cent coins list. Otherwise the write up was fantastic, thanks!
– rbrtl
...
What is the purpose of Rank2Types?
...
+100
It's hard to understand higher-rank polymorphism unless you study System F directly, because Haskell is designed to hide the details...
How does data binding work in AngularJS?
...for anyone reading this: one time binding is now a core feature in Angular v1.3, read more here: docs.angularjs.org/guide/expression
– Nobita
Oct 24 '14 at 11:59
...
Why doesn't the height of a container element increase if it contains floated elements?
...ere. It's just a normal non floated block level element which will take up 100% horizontal space unless it's floated or we assign inline-block to it.
The first valid value for float is left so in our example, we use float: left; for .floated_left, so we intend to float a block to the left of our co...
Convert a binary NodeJS Buffer to JavaScript ArrayBuffer
... {
return createUnsafeBuffer(size);
}
}
????/lib/buffer.js#L98-L100 Node.js 9.4.0
function createUnsafeBuffer(size) {
return new FastBuffer(createUnsafeArrayBuffer(size));
}
What do you mean by a “memory pool?”
A memory pool is a fixed-size pre-allocated memory block for keeping s...
Detect and exclude outliers in Pandas data frame
...g expression would do that in one shot.
df = pd.DataFrame(np.random.randn(100, 3))
from scipy import stats
df[(np.abs(stats.zscore(df)) < 3).all(axis=1)]
description:
For each column, first it computes the Z-score of each value in the
column, relative to the column mean and standard deviati...
Big-oh vs big-theta [duplicate]
...referred over laxness of bound (i.e., bullet 1
below).
T(n) = O(n100), which is identical to T(n) ∈ O(n100)
T(n) = O(n3), which is identical to T(n) ∈ O(n3)
T(n) = Θ(n3), which is identical to T(n) ∈ Θ(n3)
The equivalent English statements are respectively:
T(n)...
Javascript date.getYear() returns 111 in 2011? [duplicate]
...
For years greater than or equal to 2000, the value returned by getYear is 100 or greater. For example, if the year is 2026, getYear returns 126.
For years between and including 1900 and 1999, the value returned by getYear is between 0 and 99. For example, if the year is 1976, getYear returns 76.
Fo...