
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 …
Using R dplyr mutate to create a factor column using pre-declared ...
Sep 28, 2023 · Using R dplyr mutate to create a factor column using pre-declared levels Ask Question Asked 2 years, 5 months ago Modified 2 years, 5 months ago
Synology NAS: Trying to login after 2-factor authentication results in ...
Apr 17, 2023 · Synology NAS: Trying to login after 2-factor authentication results in "wrong verification code. please try again" Ask Question Asked 4 years, 5 months ago Modified 2 months ago
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 Find the Branching Factor of a Tree - Stack Overflow
Dec 13, 2017 · The branching factor is one characteristic of a node next to depth and gives a clue how complex a tree gets. For example, for the GO Game on a 19x19 board, the branching factor on the …
r - Replace <NA> in a factor column - Stack Overflow
Sep 30, 2017 · In `[<-.factor`(`*tmp*`, iseq, value = c(88, 88)) : invalid factor level, NA generated I think I missed a fundamental R concept about factors. Am I? I can not understand why it doesn't work. I …
"Error in initializePtr() : function 'cholmod_factor_ldetA' not ...
Nov 14, 2023 · I am attempting to build a mixed effects linear regression model using the lmer function in R. I am building a fixed effects and mixed effects model using the following code to justify the use …
r - Change ggplot factor colors - Stack Overflow
p + geom_boxplot(aes(fill = factor(cyl))) What controls which set of colors ggplot uses and how can you change it?
Drop unused factor levels in a subsetted data frame
I have a data frame containing a factor. When I create a subset of this dataframe using subset or another indexing function, a new data frame is created. However, the factor variable retains all o...
dataframe - Recoding factor levels and labels (multiple variables at ...
Mar 29, 2020 · Recoding factor levels and labels (multiple variables at once) in R Ask Question Asked 5 years, 11 months ago Modified 5 years, 11 months ago