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 ...
To fully realize the potential of invitro reprogrammed cells, we need to understand the molecular and epigenetic determinants that convert one cell type ... JH Hanna,K Saha,R Jaenisch - 《Cell》 被引量: 950发表: 2010年 Arachidonic and docosahexaenoic acids are biosynthesized from their 18-carb...
{} to {}...'.format(src_path, dest_path)) uri = '{}'.format('/restconf/operations/huawei-file-operation:copy-file') str_temp = string.Template('''\ <src-file-name>$src</src-file-name> <des-file-name>$dest</des-file-name> ''') req_data = str_temp.substitute(temp=src...
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...
## #...with70more rows,and1more variable:RNA_snn_res.1<fct> 1-2 将R数据写入Excel write.xlsx(x, file, sheetName = “Sheet1”, col.names = TRUE, row.names = TRUE, append = FALSE) write.xlsx2(x, file, sheetName = “Sheet1”, col.names = TRUE, row.names = TRUE, append =...
sample = stringr::str_remove(basename(a), ".csv.gz"), group = rep(c("CTCL", "Normal"), each = 3))#获取数据集列表的表格形式并且提供分组信息 pal <- tibble(var = c("sample", "group","seurat_clusters"), pal = c("Set2","Set1","Paired"))#可视化调色盘 ...
本文用爬虫采集了汽车销售数据(查看文末了解数据获取方式),后来对其进行了扩展,创建这个数据集,其中包括境内的所有二手车辆或者经销商车辆条目数据(点击文末“阅读原文”获取完整代码数据)。 这些数据每隔几个月就会被抓取一次,它包含 提供的关于汽车销售的大部分相关信息,包括价格、状况、制造商、纬度/经度和 18 个其...
+ nameToUse <- str_sub(string=a, start=12, end=18) + temp <- read.table(file=file.path("E:/B/R", a), + header=TRUE, sep=",", + stringsAsFactors = FALSE) + assign(x=nameToUse, value=temp) + } 1. 2. 3. 4.
variable.name:melt操作后,为新列变量取名 value.name:新列对应值的变量名 AI检测代码解析 > d<-data.frame(area=c(1,1,2,3,3,1),PH=c(2.3,2.9,4.0,7.9,8.0,3.2),temp=c(23,21,19,10,13,19),p=c(0.99,0.95,0.85,0.34,0.25,0.90)) ...