示例代码 # 动态加载包pkg_name<-"dplyr"library(get(pkg_name,envir=asNamespace(pkg_name))) 1. 2. 3. 在这个例子中,pkg_name是一个字符串,因此我们必须使用引号来声明它的内容。 3. 饼状图的可视化 在R语言中,我们经常需要进行数据可视化,其中饼状图是非常常见的图表之一。我们可以用ggplot2包来绘制一...
例如,在使用tidyverse包时,需要先加载其依赖包ggplot2、dplyr等。 # 加载tidyverse包及其依赖包 library(tidyverse) 在上述代码中,使用library函数加载tidyverse包,由于该包依赖于ggplot2、dplyr等其他包,因此在加载tidyverse时也会同时加载其依赖包。 三、总结 本文介绍了R语言中的library函数,详细解释了其语法和用法。
点击查看代码 .First<-function(){library(data.table)library(Seurat)library(dplyr)library(ggplot2)library(praise)cat(praise("${EXCLAMATION}! ${EXCLAMATION}! Handsome man,you have done this ${adverb_manner}!"),"\n",praise(),"\n",praise(),"\n",date(),"\n") } 添加R包直接在这里修改,...
[3] "package:forcats" "package:stringr" [5] "package:dplyr" "package:purrr" [7] "package:readr" "package:tidyr" [9] "package:tibble" "package:ggplot2" [11] "package:tidyverse" "package:psych" [13] "package:kernlab" "tools:rstudio" [15] "package:stats" "package:graphics" [17] ...
library(ggplot2) library(fGarch) set.seed(110117) x <- garchSim( garchSpec( model = list( "alpha" = 0.2, "beta" = 0.2, "omega" = 0.2)), n.start = 1000, n = 1000) plot(x) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. ...
library(sparklyr) library(ggplot2) library(dplyr) sc <- spark_connect(master = "local") iris_tbl <- copy_to(sc, iris, "iris", overwrite = TRUE) iris_tbl #> # Source: spark<iris> [?? x 5] #> Sepal_Length Sepal_Width Petal_Length Petal_Width Species #> <dbl> <dbl> <dbl> ...
tidyverse是一个R语言的数据科学工具集合,它包含了一系列的包,如ggplot2、dplyr、tidyr等,用于数据处理、可视化和分析。关闭详细消息可以提高代码的可读性和简洁性。 关闭详细消息的代码示例: 代码语言:txt 复制 library(tidyverse, verbose = FALSE) 优势: 提高代码的可读性和简洁性,避免在加载包时产生大量冗长的...
(dplyr) library(ggplot2) count(mpg, class) %>% ggplot(aes(class, n)) + geom_col(aes(fill = class)) + geom_text(aes(label=paste0("n=", n)), nudge_y=3) + labs(x="Vehicle category", y="Observations (n)", title="Seminal ggplot2 bar chart example", subtitle="A plot that ...
In the present example, I have installed and loaded the caret package. Please note that we could apply the same type of code to other packages such as ggplot2, dplyr, or stringr as well. Video & Further Resources Would you like to know more about the handling of the Error in library(...
(dplyr)** # Load "ggplot2" package for Exploratory Data Analysis library(ggplot2) # Load "VIM" package for imputation of missing values # install.packages("VIM") library(VIM) # Load "reshape2" package to create correlation heatmap library(reshape2) # Load "caret" package in order to ...