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 its argument to …
How to force R to use a specified factor level as reference in a ...
You should do the data processing step outside of the model formula/fitting. When creating the factor from b you can specify the ordering of the levels using factor(b, levels = c(3,1,2,4,5)). Do this in a …
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 read data in …
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 numeric values, …
Reorder levels of a factor without changing order of values
Mar 4, 2010 · I have data frame with some numerical variables and some categorical factor variables. The order of levels for those factors is not the way I want them to be. numbers <- 1:4 letters <- …
Filter factor levels in R using dplyr - Stack Overflow
May 5, 2015 · Filter factor levels in R using dplyr Asked 10 years, 8 months ago Modified 10 years, 8 months ago Viewed 67k times
r - Sort data frame column by factor - Stack Overflow
Jan 23, 2014 · Sort data frame column by factor Asked 11 years, 11 months ago Modified 3 years, 6 months ago Viewed 95k times
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 collision occurs the …
How to get the reference level of a factor column?
Jun 14, 2022 · I feel silly asking this, but searching how to retrieve the reference level of a factor results in tons of questions asking how to relevel a factor (such as this one). I couldn't find anything on how …
Changing plot scale by a factor in matplotlib - Stack Overflow
45 I am creating a plot in python. Is there a way to re-scale the axis by a factor? The yscale and xscale commands only allow me to turn log scale off. Edit: For example. If I have a plot where the x scales …