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Remove an entire column from a data.frame in R
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421
You can set it to NULL.
> Data$genome <- NULL
> head(Data)
chr region
1 chr1 CDS...
Is there a way of having git show lines added, lines changed and lines removed?
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135
You can use:
git diff --numstat
to get numerical diff information.
As far as separating mo...
What does the number in parentheses shown after Unix command names in manpages mean?
For example: man(1) , find(3) , updatedb(2) ?
7 Answers
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Find rows that have the same value on a column in MySQL
...SELECT email,
count(*) AS c
FROM TABLE
GROUP BY email
HAVING c > 1
ORDER BY c DESC
If you want the full rows:
select * from table where email in (
select email from table
group by email having count(*) > 1
)
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Generate sql insert script from excel worksheet
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13 Answers
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git - Your branch is ahead of 'origin/master' by 1 commit
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130
You cannot push anything that hasn't been committed yet. The order of operations is:
Make yo...
Need for predictable random generator
... a player has 20% chance to get a critical hit with his sword. That means, 1 out of 5 hits should be critical. The problem is I got very bad real life results — sometimes players get 3 crits in 5 hits, sometimes none in 15 hits. Battles are rather short (3-10 hits) so it's important to get good ra...
Autowiring two beans implementing same interface - how to set default bean to autowire?
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134
I'd suggest marking the Hibernate DAO class with @Primary, i.e. (assuming you used @Repository...
Mac OSX Lion DNS lookup order [closed]
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10 Answers
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