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How to force R to use a specified factor level as reference in a regression?
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See the relevel() function. Here is an example:
set.seed(123)
x <- rnorm(100)
DF <- data.frame(x = x,
y = 4 + (1.5*x) + rnorm(100, sd = 2),
b = gl(5, 20))
head(DF)
str(DF)
m1 <- lm(y ~ x + b, data = DF)
summary(m1)
Now alter the factor b ...
npm: disable postinstall script for package
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273
It's not possible to disable only postinstall scripts. However, you can disable all scripts usin...
Rollback to last git commit
...O local file changes and REMOVE your last commit
git reset --hard HEAD^
3) KEEP local file changes and REMOVE your last commit
git reset --soft HEAD^
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Pushing from local repository to GitHub hosted remote
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232
You push your local repository to the remote repository using the git push command after first ...
Statistics: combinations in Python
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123
See scipy.special.comb (scipy.misc.comb in older versions of scipy). When exact is False, it use...
How to define several include path in Makefile
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113
You have to prepend every directory with -I:
INC=-I/usr/informix/incl/c++ -I/opt/informix/incl/...
Print commit message of a given commit in git
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347
It's not "plumbing", but it'll do exactly what you want:
$ git log --format=%B -n 1 <commi...
Non-static method requires a target
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503
I think this confusing exception occurs when you use a variable in a lambda which is a null-refe...
Why is $$ returning the same id as the parent process?
...d with BASHPID.
~ $ echo $$
17601
~ $ ( echo $$; echo $BASHPID )
17601
17634
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