用法:assign(“variable_name”,value) 参数: variable_name是值的名称 value是变量。 例子: R # assign variable name to 3 valueassign("variable_name",3)# print variable nameprint(variable_name) 输出: [1] 3 我们还可以创建一个包含一组变量的向量并分配一个变量名称。 例子: R # create 5 variab...
However, in this tutorial we do not care about the content of our variable. Instead, we care about the variable name! So let’s convert our data object’s name to a character string. Example: Get Object Name as Character String Using deparse() & substitute() Functions ...
etree.fromstring(rsp_data) namespaces = {'file-operation': 'urn:huawei:yang:huawei-file-operation'} mpath = '{}'.format('dir') for file_tmp in root_elem.findall(mpath, namespaces): file_name = file_tmp.find("file-name", namespaces) elem = file_tmp.find("dir-name", namespaces) ...
path(current_dir, csv_file_name) data <- read.csv(csv_file_path_2) #model preparation data$Date <- as.Date(data$Date) # Convert character string column to date data_ts <- xts(data[2:6], data$Date) # Convert data frame to time series data_ts # Print time series class(data_ts...
Converts to string form. RGtk 被引量: 0发表: 0年 Convert numbers to string and format RE Benestad 被引量: 0发表: 0年 Convert seconds to human readable string(s) This function converts a (usually large) amount of seconds to human-readable string. For example R Oldenhuis - 《...
• str_which(string, pattern, negate=FALSE): 查找匹配的索引 • str_count(string, pattern): 计算匹配的次数 • str_locate(string, pattern): 定位匹配的位置 • str_starts(string, pattern): 检测是否以pattern 开头 • str_ends(string, pattern): 检测是否以pattern 结尾 注:参数negate若为TR...
1 构建数据框df x为factor变量,2010和2011位数值变量 2. 用reshape2::melt将2维数据转换为一维数据 df_melt<-reshape2::melt(df,id.vars="x",variable.name="year",value.name="value") Arguments 经过melt变换之后的df_melt 将长数据转换为宽数据 ...
data2<-melt(data1,id.vars="area",variable.name = "year", = "GDP") 1. 长数据变为宽数据 library(tidyr) data3<-spread(data2,year,GDP) 1. 2. Year是类别变量,有几类,就会转化为几列 spread {tidyr} spread(data, key, value, fill = NA, convert = FALSE, drop = TRUE, sep = NULL...
Now, we can use the as.factor function to convert this character string to the factor class:vec_updated <- as.factor(vec) # Convert character vector to factorOur updated vector is stored in the data object vec_updated. Again, we can use the class function to check the class of our ...
## R包加载 library(Seurat) library(stringr) library(ggplot2) library(patchwork) library(reticulate) library(sceasy) library(readr) library(cowplot) library(SeuratData) sc <- import("scanpy", convert = FALSE) scvi <- import("scvi", convert = FALSE) ### 1.读入数据 data("ifnb") Step...