In this article, you have learned how to apply a function to each element of a Vector in R. You can use functions like apply(), lapply(), tapply(), sapply() etc.lapply() returns a list of the same length asX. It can take a vector as input and always return a list.sapply()is ...
3. You are an R user familiar with vectorized functions In this case, you can simply addpbapply::pbbefore your*applyfunctions, e.g.apply()will becomepbapply::pbapply(), etc. You can guess what happens. Now if you want to speed things up a little (or a lot), trypbapply::pbapply(....
Apply Functions Over Array Margins对阵列行或者列使用函数 apply(X, MARGIN, FUN, ...) lapply Apply a Function over a List or Vector对列表或者向量使用函数 lapply(X, FUN, ...) sapply Apply a Function over a List or Vector对列表或者向量使用函数 sapply(X, FUN, ..., simplify = TRUE, USE...
R中的apply函数与function函数 r语言apply函数用法,R语言apply函数家族详解applyApplyFunctionsOverArrayMargins对阵列行或者列使用函数apply(X,MARGIN,FUN,…)lapplyApplyaFunctionoveraListorVector对列表或者向量使用函数lapply(X,FUN,…)sapplyApplyaFunctionoveraList
在使用R时,要尽量用array的方式思考,避免for循环。不用循环怎么实现迭代呢?这就需要用到apply函数族。它不是一个函数,而是一族功能类似的函数。概述apply系列函数的基本作用是对数组(array,可以是多维)或者列表(list)按照元素或元素构成的子集合进行迭代,并将当前元素或子集合作为参数调用某个指定函数。vector是一维...
A note on the R Apply Family The R Apply Family is a set of functions in R that allow users to apply a function to elements of a vector, list, or matrix. However, it is considered legacy functionality and should not be used for new code. Instead, it is recommended to use the purrr...
In the case of functions like ‘+’, ‘%*%’, etc., the function name must be backquoted or quoted. ...: optional arguments to ‘FUN’. apply函数重要的参数有3个,传入的数据X,操作的行列Margin,运行的函数FUN。 传入的数据X:array或matrix,但是基于实际情况,传入的数据大部分都是矩阵 Margin:1...
apply() functionlapply( )functionsapply() functiontapply() functionapply() 函数 apply() takes Data frame or matrix as an input and gives output in vector, list or array. apply需要的输入是一个矩阵或者数据框，但是输出却不是这两个类型，这个是需要注意的，一般而言，apply的用法如下：apply(X, ...
Apply Functions Over ArrayMargins 对阵matrix或者array使用函数 apply(X, MARGIN, FUN,...) mapply Apply a Function to MultipleList or Vector Arguments mapply(FUN, ..., MoreArgs =NULL, SIMPLIFY = TRUE, USE.NAMES = TRUE) tapply apply a function over subsets of a vector ...
Difference Between data.frame & as.data.frame Functions is.data.frame & as.data.frame Functions in R Apply Function to Each Cell of Data Frame in R Change Classes of Data Frame Columns Automatically Replace Entire Data Frame Column in R ...