,sep=" ")
data <- read.table('1.csv', sep=' ')
p_data <- paste(data[,1], data[,2], data[,3], sep="")...('1.csv', sep='|', header=TRUE, fileEncoding='utf-8');
data_1_2 <- read.table('2.csv', sep='|', header...=TRUE, fileEncoding='utf-8');
data_1_3 <- read.table('3.csv', sep='|', header=TRUE, fileEncoding='utf...data_1_2, data_1_3)
fix(data)
4、字段匹配
将不同结构的数据框,按照一定的条件进行合并(两表合并)
字段匹配函数:merge(x,y,by.x,by.y)
items <- read.table...('1.csv', sep='|', header=FALSE, fileEncoding='utf-8')
fix(items)
prices <- read.table('2.csv', sep=