Select Columns in a Data Frame

Source: R/df.R

A wrapper around the select() function for selection data frame columns. Supports standard and non standard evaluations. Usefull to easily program with dplyr

df_select(data, ..., vars = NULL)

Arguments

data

a data frame
...

One or more unquoted expressions (or variable names) separated by commas. Used to select a variable of interest.
vars

a character vector containing the variable names of interest.

Value

a data frame

Examples

df <- head(ToothGrowth)
df
#>    len supp dose
#> 1  4.2   VC  0.5
#> 2 11.5   VC  0.5
#> 3  7.3   VC  0.5
#> 4  5.8   VC  0.5
#> 5  6.4   VC  0.5
#> 6 10.0   VC  0.5

# Select column using standard evaluation
df %>% df_select(vars = c("dose", "len"))
#>   dose  len
#> 1  0.5  4.2
#> 2  0.5 11.5
#> 3  0.5  7.3
#> 4  0.5  5.8
#> 5  0.5  6.4
#> 6  0.5 10.0

# Select column using non-standard evaluation
df %>% df_select(dose, len)
#>   dose  len
#> 1  0.5  4.2
#> 2  0.5 11.5
#> 3  0.5  7.3
#> 4  0.5  5.8
#> 5  0.5  6.4
#> 6  0.5 10.0