|
- 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
- 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
- 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
- odbcDriverConnect fails as Microsoft enforce multi-factor authentication
We have been using RODBC odbcDriverConnect for several years to access Azure SQL database using AD Username Password authentication This now fails with the following error, after Microsoft have en
- Remove expired certificates from Azure Multi-Factor Auth Client (NPS . . .
I'm currently looking into how we should remove expired certificates from Azure Multi-Factor Auth Client, and properly cleanup the old certificates with Microsoft Graph PowerShell cmdlets
- Should year variable be factor or numeric in panel data in R?
If this is panel (longitudinal) data, then year and t are both numeric variables representing the passage of time, so I would have thought they should remain numeric, rather than factor, particularly if you're running the data through a repeated measures regression model
- Variance Inflation Factor in Python - Stack Overflow
I'm trying to calculate the variance inflation factor (VIF) for each column in a simple dataset in python: a b c d 1 2 4 4 1 2 6 3 2 3 7 4 3 2 8 5 4 1 9 4 I have
- r - Manually set shape by factor - Stack Overflow
Manually set shape by factor Ask Question Asked 11 years, 5 months ago Modified 2 years, 11 months ago
|
|
|