Many mathematical properties possessed by functions of several variables are couched in geometric terms and with reference to elementary set theory. In this introductory chapter I will revisit some of the concepts that will be needed in later chapters. For example, vector calculus springs naturally ...
For both matrices and arrays, the dim function returns a vector of integers of the dimensions of the variable: dim(three_d_array) ## [1] 4 3 2 dim(a_matrix) ## [1] 4 3 For matrices, the functions nrow and ncol return the number of rows and columns, respectively: nrow(a_matrix...
Apply functions to a vector over()applies one or several functions to a vector. We can use it insidedplyr::mutate()to create several similar variables that we derive from an existing column. This is helpful in cases where we want to create a batch of similar variables with only slightly ...
Relevant Sampling of Band-limited Functions We study the random sampling of band-limited functions of several variables.If a bandlimited function with bandwidth one has its essential support on acube... RICHARD F. BASS,KARLHEINZ GROECHENIG - 《Illinois Journal of Mathematics》 被引量: 23发表: ...
cervids and lagomorphs, of the TBE virus vector Ixodes ricinus, are among the potentially most important factors affecting the TBE incidence. Therefore, we compare hunting data of the major tick maintenance hosts and two of their important predators, and four climatic variables with the annual ...
This package is built on the new classeshaven_labelledandhaven_labelled_spssintroduced byhavenpackage to handle labelled variables imported from SPSS, Stata and SAS. Thelabelledpackage propose several functions to manipulate such vectors and their metadata: variable labels, value labels and user-defined...
Remotely-sensed data on terrestrial characteristics and variables such as tempera- ture, rainfall, humidity, along with other environmental factors, govern the distribution of infectious agents as well as the intermediate hosts and vectors they might utilize. Therefore, the application of this new ...
The interrupt vector may be coded in C as an array of pointers to functions, thus: void (*interrupt_vector[])()= { alpha, beta, gamma }; This interrupt vector has three entries, which point to three interrupt service routines, implemented as C functions: alpha(), beta(), and gamma(...
Vectorized Operations: Many functions leverage vectorized operations using thendarraycrate to maximize performance in Rust. Benchmarking and Verification The library now includes a benchmarking suite that verifies the correctness of the numerical results while measuring performance gains from recent improvements...
The E1a gene products are involved in transcriptional regulation; the E1b gene products are involved in the shut-off of host cell functions and MRNA transport. E2a encodes the a DNA-binding protein (DBP); E2b encodes the viral DNA polymerase and preterminal protein (pTP). The E3 gene ...