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- 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 a factor It is an abbreviated (sometimes faster) form of ‘factor’ Performance: as factor > factor when input is a factor The word "no-operation" is a bit ambiguous
- Convert data. frame column format from character to factor
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 with read_excel() from the readxl package and want to train a random forest model that doesn't accept character variables
- Synology NAS: Trying to login after 2-factor authentication results in . . .
Synology NAS: Trying to login after 2-factor authentication results in "wrong verification code please try again" Asked 4 years, 6 months ago Modified 2 months ago Viewed 20k 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 numeric values, as numeric(levels(f))[f] is recommended and slightly more efficient than as numeric(as character(f)) The FAQ on R has similar advice
- Is GetScaleFactorForMonitor winapi returning incorrect scaling factor?
5 How do I get correct DPI scaling factor? What I need is the percentage shown in the screenshot, in this case it is 200% The code below gives SCALE_180_PERCENT I would expect the code below should return SCALE_200_PERCENT The system is Windows 10, Surface 2, display resolution 3000x2000, custom scaling is off, fix scaling for apps by
- multi factor authentication - How does a Guest User reset their MS . . .
azure-active-directory multi-factor-authentication azure-ad-b2b authenticator asked Jul 24, 2020 at 18:04 successhawk 3,409 5 37 53
- r - Re-ordering factor levels in data frame - Stack Overflow
Re-ordering factor levels in data frame [duplicate] Ask Question Asked 12 years, 7 months ago Modified 4 years, 7 months ago
- How to count how many values per level in a given factor?
How to count how many values per level in a given factor? Ask Question Asked 11 years, 6 months ago Modified 4 years, 1 month ago
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