同时若你嫌麻烦一个个地对变量进行操作,还可以使用mutate_each函数对数据框中的变量批量操作,通过调整funs(即functions)和vars(variables)参数控制functions的数量,以及参与变形的variables,这里控制variables的技巧与select函数相似。 iris%>%mutate_each(funs(dense_rank)) iris%>%mutate_each(funs(dense_rank,min_ran...
In Example 1, I’ll illustrate the main difference between the library() and require() functions in R:In case a package is not installed, the library functions returns an error message and the require function returns a warning message....
Certainly, all example programs from this point on use library functions. Each library function has its own entry in the libraries reference manual [Ref. 14.3]. This indicates the action of the function, the arguments to be passed, the return type and any header file which must be included....
This topic describes the z/OS® XL C/C++ Runtime Library functions, including the built-in library functions used by the z/OS XL C/C++ compilers.Names Unsupported functions and external variables in AMODE 64 Standards Using C include files from C++ Built-in functions IEEE binary ...
Logical semantic hierarchies and rich interconnections of related terms and synonyms enable accurate retrieval and browsing of similar resources and ideally should be available in online environments. But the cost of features may not be sustainable with massively growing resources. Efforts to merge ...
int getnetgrent_r(char **machinep, char **userp, char **domainp, char *buffer, intbuflen); int setnetgrent(const char *netgroup); int endnetgrent(void); int innetgr(const char *netgroup, const char *machine, const char *user, const char *domain); Description These functions are...
An icon in the lower-left corner of the chart canvas indicates the action language for the chart.MATLAB® as the action language. C as the action language.Call C Library Functions You can call this subset of the C Math Library functions: abs* ** acos** asin** atan** atan2** ceil*...
Many functions in external libraries pass arguments by reference. When you pass by reference, you pass apointerto the value. In the function signature, pointer arguments have names ending inPtrandPtrPtr. Although MATLAB®does not support passing by reference, you can create a MATLAB argument, ...
Ja no actualitzem aquest contingut regularment. Consulteu elcicle de vida del producte de Microsoftper obtenir informació sobre com es proporciona l'assistència tècnica per a aquest producte, servei, tecnologia o API. Torna al lloc principal...
Double Precision Complex Functions and Subroutines...136 2.6.4.1. izamax...137 2.6.4.2. izamin... 137