如何使用函数将单列R数据框中的第一个字母转换为大写？
要将R中单列数据框中的第一个字母转换为大写，我们可以按照以下步骤操作-
首先，创建一个带有字符串列的数据框。
然后，使用R.utils包中的大写函数将第一个字母转换为单列大写。
示例
创建数据框
让我们创建一个数据框，如下所示-
Names<-
sample(c("rahul","rosy","hidayah","seema","john","sarbat","shaun","sam","teena","ila","kunal","sudha","anil","yukti","jerry","tom"),25,replace=TRUE)
df<-data.frame(Names)
df输出结果执行时，上述脚本生成以下内容output(thisoutputwillvaryonyoursystemduetorandomization)-
Names 1 yukti 2 john 3 anil 4 shaun 5 shaun 6 rahul 7 ila 8 kunal 9 anil 10 jerry 11 hidayah 12 yukti 13 shaun 14 teena 15 tom 16 seema 17 jerry 18 teena 19 jerry 20 hidayah 21 shaun 22 hidayah 23 sam 24 rosy 25 seema
将第一个字母转换为大写
使用R.utils包中的大写函数将名称列中的第一个字母转换为大写-
Names<-
sample(c("rahul","rosy","hidayah","seema","john","sarbat","shaun","sam","teena","ila"," kunal","sudha","anil","yukti","jerry","tom"),25,replace=TRUE)
df<-data.frame(Names)
library(R.utils)
df$Names<-capitalize(df$Names)
df输出结果Names 1 Ila 2 Rosy 3 Ila 4 Kunal 5 Jerry 6 Seema 7 Rosy 8 Sam 9 Ila 10 Sudha 11 Seema 12 Jerry 13 Tom 14 Rosy 15 Shaun 16 John 17 Ila 18 Tom 19 Rosy 20 Hidayah 21 Rosy 22 Sarbat 23 John 24 Sarbat 25 Jerry