Creating a dataframe

[alx]

I would like to learn how to create a data frame in RStudio specific to my data which looks like this :

I read online what the code should be in general although I do not understand it fully, it looks like this :

# Create the data frame.
pois.data <- data.frame(

)

Also I do not know how to execute this data frame after, is it by calling the variable name I stored it in?

[technocrat]

@alx

``` r
# Create the data frame.
pois.data <- data.frame(
 Longueur = c(18.13,18.53,18.43),
 Sex = c("M","M","M"),
 pH = c("acide","acide","acide")
)
pois.data
#>   Longueur Sex    pH
#> 1    18.13   M acide
#> 2    18.53   M acide
#> 3    18.43   M acide

^{Created on 2023-05-30 with reprex v2.0.2}

In practice, however, you would only ever create data frames by hand this way rarely. R isn't really a data entry system. Usually, data is entered in a spreadsheet and exported to a csv file or it is entered and validated as to form in a database. From one of those types of data stores the data can be imported into a data frame.