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ggplot2 is an open-source data visualization package for the statistical programming language R.Created by Hadley Wickham in 2005, ggplot2 is an implementation of Leland Wilkinson's Grammar of Graphics—a general scheme for data visualization which breaks up graphs into semantic components such as scales and layers. ggplot2 can serve as a replacement for the base graphics in R and contains a ...
The POWER1 from 1990 is the first microprocessor that used register renaming and out-of-order execution. This processor implemented register renaming only for floating-point loads. The POWER1 had only one FPU, so using renaming for floating-point instructions other than memory operation was unnecessary.
A square matrix is called a projection matrix if it is equal to its square, i.e. if =. [2]: p. 38 A square matrix is called an orthogonal projection matrix if = = for a real matrix, and respectively = = for a complex matrix, where denotes the transpose of and denotes the adjoint or Hermitian transpose of .
These ticks, commonly known as cattle ticks or blue ticks, have a highly characteristic morphology and one-host lifecycle. They have high specificity for cattle as hosts and their morphological characteristics used for identification are less distinct than those of three-host rhipicephalids such as R. appendiculatus .
The Tick is a superhero created by cartoonist Ben Edlund [1] in 1986 as a newsletter mascot for the New England Comics chain of Boston-area comic book stores. The character is a parody of American comic book superheroes.
It takes a lot to give professional snake wranglers the creeps, but it happened when a group of hunters captured a python plagued by blood-sucking ticks in Florida’s Everglades.