#count total rows in data frame
nrow(df)
#count total rows with no NA values in any column of data frame
nrow(na.omit(df))
#count total rows with no NA values in specific column of data frame
nrow(df[!is.na(df$column_name),])setNames(as.data.frame(table(df1$asa)), c("asa", "n"))
# asa n
#1 aa 3
#2 bb 2
#3 cc 1
#4 dd 1df <- df[1:5,]df %>%
count(column_to_check)| Code Example |
|---|
| Rust :: rust reverse range |
| Rust :: rust take user input |
| Rust :: hello world rust |
| Rust :: rust convertinging string to int |
| Rust :: rust create bigint from string |
| Rust :: rust implement debug for struct |
| Rust :: rust nesting and labels loop |
| Rust :: rust match with enum |
| Rust :: rust swap vector elements |
| Rust :: how to export a macro in rust |
| Rust :: rust repeat character x times |
| Rust :: rust trait |
| Rust :: rust concat |
| Rust :: rust argv |
| Rust :: rust for loop |
| Rust :: rust lang expected item found let |
| Rust :: armanriazi•rust•clone•vs•copy |
| Rust :: armanriazi•rust•unsafe•extern•mangling |
| Rust :: get value from option rust |
| Rust :: how to get public addres from private key solana cli |
| Rust :: armanriazi•rust•copy•clone•deeply•shallow |
| Lua :: luau how to make rainbow part |
| Lua :: luau make region3 |
| Lua :: luau loop all players |
| Lua :: roblox random brick colour |
| Lua :: lua event |
| Lua :: what is lua used for |
| Lua :: Tool script example for lua |
| Lua :: roblox add attribute |
| Lua :: init.lua set font |