Why does as.factor return a character when used inside apply?...

Can we get factor matrices in R?...

Dropping factors which levels have observations smaller than a specific value-R...

Random stratified sample from each factor levels...

Is there an elementary way to replace R's integer encoding of levels with labels?...

R dataframe to "dictionary" avoiding list of factors...

Chi-Square test for SEM in R...

How to assign factor levels by the weight of strings in a vector?...

ggplot: arranging boxplots of multiple y-variables for each group of a continuous x...

rename all rows in a column based upon row with a different name...

Change plotting order of bars in ggplot2...

R - new column with values assigned depending on month...

Changing internal factor levels in R (important for haven - write_dta())...

How to convert a character vector to numeric?...

How to create a vector with the values of a data frame classified by factors in R?...

Reordering ggplot2 barplots by a mixed character and numerical variable...

Dichotomize data by factor...

Reorder a factor based on the ratio of the group sums of two columns - grouping by the factor to be ...

Making changes to factor levels but keeping the same order of the levels...

How to separate a vector based on conditions in R...

Finding the number of each factor per column in R...

Extracting factor labels from table result for use as data frame column...

In R, how can I initialise empty data frame while preventing some character columns from being facto...

drop = TRUE doesn't drop factor levels in data.frame while in vector it does...

R: Sorting factor by level frequency and plotting...

Create column with minimum (first) level of factors by group r...

how to add a new factor in R...

factor level in R not displayed as numeric...

Integer overflow from many-leveled factor with class.ind()?...

What does R's class.ind() function do and when would I use it?...