我想将我的矢量 n 连接到2个字符＆＃34; 0＆＃34; 和＆＃34; m＆＃34; 。
n=c(18,8,13,24,76,81,96,95)
我试过了：
paste0("m", gsub(" ", "0", format(n)))
[1] "m18" "m08" "m13" "m24" "m76" "m81" "m96" "m95"
预期结果：
[1] "m018" "m008" "m013" "m024" "m076" "m081" "m096" "m095"
答案 0 :(得分：2)
您可以使用sprintf：
n=c(18,8,13,24,76,81,96,95)
paste0("m" , sprintf("%03d",n))
# "m018" "m008" "m013" "m024" "m076" "m081" "m096" "m095"
或者只是
sprintf("m%03d",n)