问题
Follow-up question to Dynamically create value labels with haven::labelled, where akrun provided a good answer using deframe
.
I am using haven::labelled to set value labels of a variable. The goal is to create a fully documented dataset I can export to SPSS.
Now, say I have a df value_labels
of values and their value labels. I also have a df df_data
with variables to which I want allocate value labels.
value_labels <- tibble(
value = c(seq(1:6), seq(1:3), NA),
labels = c(paste0("value", 1:6),paste0("value", 1:3), NA),
name = c(rep("var1", 6), rep("var2", 3), "var3")
)
df_data <- tibble(
id = 1:10,
var1 = floor(runif(10, 1, 7)),
var2 = floor(runif(10, 1, 4)),
var3 = rep("string", 10)
)
Manually, I would create value labels for df_data$var1
and df_data$var2
like so:
df_data$var1 <- haven::labelled(df_data$var, labels = c(values1 = 1, values2 = 2, values3 = 3, values4 = 4, values5 = 5, values6 = 6))
df_data$var2 <- haven::labelled(df_data$var, labels = c(values1 = 1, values2 = 2, values3 = 3))
I need a more dynamic way of assigning correct value labels to the correct variable in a large dataset. The solution also needs to ignore character
vectors, since I dont want these to have value labels. For that reason, var3
in value_labels
is listed as NA
.
The solution does not need to work with multiple datasets in a list.
回答1:
Here is one option where we split
the named 'value/labels' by 'name' after removing the NA
rows, use the names of the list
to subset the columns of 'df_data', apply the labelled
and assign it to back to the same columns
lbls2 <- na.omit(value_labels)
lstLbls <- with(lbls2, split(setNames(value, labels), name))
df_data[names(lstLbls)] <- Map(haven::labelled,
df_data[names(lstLbls)], labels = lstLbls)
df_data
# A tibble: 10 x 4
# id var1 var2 var3
# <int> <dbl+lbl> <dbl+lbl> <chr>
# 1 1 2 [value2] 2 [value2] string
# 2 2 5 [value5] 2 [value2] string
# 3 3 4 [value4] 1 [value1] string
# 4 4 1 [value1] 2 [value2] string
# 5 5 1 [value1] 1 [value1] string
# 6 6 6 [value6] 2 [value2] string
# 7 7 1 [value1] 3 [value3] string
# 8 8 1 [value1] 1 [value1] string
# 9 9 3 [value3] 3 [value3] string
#10 10 6 [value6] 1 [value1] string
来源:https://stackoverflow.com/questions/59376487/dynamically-create-value-labels-with-havenlabelled-follow-up