factors and indexing by name into a list returning different order...

Unexpected conversion to chars instead of factors in data frames and matrices...

Order y-axis of ggplot by another factor (not alphabetically) R...

How to read numeric values as factors in R?...

How to remove ordering of the levels from factor variable in R?...

R: possible bug in `factor`?...

invalid factor level data.frame error inspite of stringsAsFactors=FALSE...

R - aggregate factor/character variable...

How to apply a function for each level of a factor variable?...

Effect of factor vs vector object type when making a linear model...

changing factors to numeric - how to cope with unavailable values...

How to change order of boxplots when using ggplot2?...

In R, how can I test if two factors are equivalent?...

Convert factor to integer in a data frame...

Subset a factor by NA levels...

Converting a factor to numeric without losing information R (as.numeric() doesn't seem to work)...

data.table assignment involving factors...

Convert factor above certain value to NA...

How to cut a vector in two of the same size?...

R: Define levels of a factor in data frame...

Recoding in R: Transform 2 numeric rows of data into one factor row...

Syntax for referencing into results of summary frequency counts of categorical variable/factor...

Converting character to factor using lapply with no melting...

Reorder factor levels using names...

How to add a factor in a new column according to the existing factors...

Reverse of aggregate / by?...

How to convert a factor variable to numeric while preserving the numbers in R...

R subset ordered factor...

how to convert factors with decimal points into numeric values...

How to add color on plot using factor variable as one of the axis?...