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Using awk to print all columns from the nth to the last
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24 Answers
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Remove an entire column from a data.frame in R
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421
You can set it to NULL.
> Data$genome <- NULL
> head(Data)
chr region
1 chr1 CD...
What is the difference between print and puts?
...ot one already.
print does not add a new line.
For example:
puts [[1,2,3], [4,5,nil]] Would return:
1
2
3
4
5
Whereas print [[1,2,3], [4,5,nil]]
would return:
[[1,2,3], [4,5,nil]]
Notice how puts does not output the nil value whereas print does.
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How to get all subsets of a set? (powerset)
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26 Answers
26
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Check if something is (not) in a list in Python
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2 Answers
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Multiple linear regression in Python
...ress my dependent variable (y) against several independent variables (x1, x2, x3, etc.).
13 Answers
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Equation for testing if a point is inside a circle
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In general, x and y must satisfy (x - center_x)^2 + (y - center_y)^2 < radius^2.
Please note that points that satisfy the above equation with < replaced by == are considered the points on the circle, and the points that satisfy the above equation with < replaced ...
Callback functions in C++
...sing appropriate callables for example:
std::vector<double> v{ 1.0, 2.2, 4.0, 5.5, 7.2 };
double r = 4.0;
std::for_each(v.begin(), v.end(), [&](double & v) { v += r; });
std::for_each(v.begin(), v.end(), [](double v) { std::cout << v << " "; });
which prints
5 6.2 8 9.5...
How to write log base(2) in c/c++
Is there any way to write log(base 2) function?
14 Answers
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Generate a random point within a circle (uniformly)
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21 Answers
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