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Questions - factors

How to automate adding factors to variables in large data frame in R

I have a large data frame in R with over 200 mostly character variables that I would like to add factors for. I have prepared all levels and labels in an separate data frame. For a certain variable Va...
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ebay

r

function

label

factors

pmap

Votes: 0

Answers: 2

Latest Answer

I solved it with a simple refactoring of your code, automatizing thought a loop. The more data you add, the better your time spent. I believe this fct[[paste0(names(df[i]),"_v")]] can be re...
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AugtPelle

In R methods to reduce possible error when labeling a factor with many levels

I have a variable with 75 levels, that I would like to format. However, I find it difficult to do so without formatting a level wrong. As you know creating a factor with its levels is done like this: ...
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ebay

r

label

factors

levels

forcats

Votes: 0

Answers: 2

Latest Answer

You could use a named vector for your level-label-pairs and convert to a factor like so: foo <- c("a", "c", "b") rec <- c( "a" = "Treatment A"...
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stefan

R: Creating a Table of Factor Levels

I am working with the R programming language. Suppose I have the following data: var1 <- c("A1", "A2", "A3") var2 <- c("B1", "B2" ) var_1_a <...
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stats_noob

r

categories

data-manipulation

factors

Votes: 0

Answers: 1

Latest Answer

Try making a list instead of a data frame that will allow for different number of rows. new_data = list(var_1_a = data.frame(table(my_data$var_1_a )), var_2_a = data.frame(table(my_data$var_1_b)))
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stomper

Why is levels() not assigning the wrong level to my data?

I'm creating a function that requires users to upload a dataset with a vector of specific characters. Under the hood, I need one column that has the vector remain character, but I also need a separate...
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J.Sabree

r

factors

levels

forcats

Votes: 0

Answers: 2

Latest Answer

Update: Ok then you could use factor instead of as.factor and set levels directly: data$state_factor <- factor(data$state, levels=c("Not Started", "Just Beginning", ...
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Marco_CH

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