Why use as.factor () instead of just factor () - Stack Overflow
‘factor(x, exclude = NULL)’ applied to a factor without ‘NA’s is a no-operation unless there are unused levels: in that case, a factor with the reduced level set is returned. ‘as.factor’ coerces …
Convert data.frame column format from character to factor
Dec 6, 2018 · The complete conversion of every character variable to factor usually happens when reading in data, e.g., with stringsAsFactors = TRUE, but this is useful when say, you've …
factor () command in R is for categorical variables with hierarchy ...
Oct 19, 2012 · Various factor-handling R functions (the "methods and model-fitting functions" of the second part of that quote) will then use is.ordered() to test for the presence of that …
r - Re-ordering factor levels in data frame - Stack Overflow
Aug 24, 2013 · Re-ordering factor levels in data frame [duplicate] Asked 12 years, 4 months ago Modified 4 years, 4 months ago Viewed 257k times
r - How to convert a factor to integer\numeric without loss of ...
See the Warning section of ?factor: In particular, as.numeric applied to a factor is meaningless, and may happen by implicit coercion. To transform a factor f to approximately its original …
Factor out specific number using sympy - Stack Overflow
Dec 19, 2018 · Here's how you can factor an expression by an arbitrary number. It can be a python int, or an Sympy number. Say we want to factor 2 + 2*x by 3/7:
What is the significance of load factor in HashMap?
Feb 22, 2018 · A load factor=1 hashmap with number of entries=capacity will statistically have significant amount of collisions (=when multiple keys are producing the same hash). When …
Convert existing dataframe variable to factor in Tidyverse
Feb 26, 2022 · When you have an existing character variable in a dataframe, is there an easy method for converting that variable to a factor using the tidyverse format? For example, the …
How to count how many values per level in a given factor?
Sep 30, 2014 · How to count how many values per level in a given factor? Asked 11 years, 3 months ago Modified 3 years, 10 months ago Viewed 230k times
When to use as.numeric and as.factor in R - Stack Overflow
Feb 17, 2020 · Factors (with as.factor) are variables that have discrete values, which may or may not be ordered. In other areas of science outside R they're often called categorical values. For …