Jan 15, 2012 · x = 1:5; has created a ROW vector. Some operations will require a column vector. Since x(:) does nothing to a vector that is already a column vector, this is a way of writing …

May 9, 2018 · How to check if a vector contains a given value? The superior readability is.element() vs %in% is subjective. A case can be made that an infix operator is more readable …

Oct 4, 2011 · But, data.frame objects allow you to select using matrix style notation and then you would get a simple vector. So just change colA <-tmp[compareA] colB <-tmp[compareB]

Oct 3, 2012 · But at least in the present case it is nicer to use a range-based for loop: for (auto x: v) std::cout << x << "\n"; (You may also add & after auto to make x a reference to the elements …

Aug 14, 2015 · x gets its value from the elements in the vector temp. The loop: for(int x : temp) is a c++11 style loop that just runs over (iterates) each element in the vector and copies it into x. …

x <- sample(1:10) x # [1] 4 5 9 3 8 1 6 10 7 2 match(c(4,8),x) # [1] 1 5 match only returns the first encounter of a match, as you requested. It returns the position in the second argument of the …

May 29, 2016 · On the other hand, d-vector is extracted using DNN. To extract a d-vector, a DNN model that takes stacked filterbank features (similar to the DNN acoustic model used in ASR) …

Dec 26, 2014 · Say you want to rotate a vector or a point by θ, then trigonometry states that the new coordinates are. x' = x cos θ − y sin θ y' = x sin θ + y cos θ To demo this, let's take the …

Jan 4, 2014 · Mix of all the above answers which suits me: import numpy as np def pol2cart(r,theta): ''' Parameters: - r: float, vector amplitude - theta: float, vector angle Returns: - …

Jul 2, 2010 · To carry out a rotation using matrices the point (x, y) to be rotated is written as a vector, then multiplied by a matrix calculated from the angle, θ, like so: where (x′, y′) are the co …