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What's the best way to set a single pixel in an HTML5 canvas?
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14 Answers
14
Active
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Changing the color of the axis, ticks and labels for a plot in matplotlib
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167
As a quick example (using a slightly cleaner method than the potentially duplicate question):
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bash HISTSIZE vs. HISTFILESIZE?
...st: in memory.
Long answer:
All the info above + some examples:
Example 1:
HISTFILESIZE=10 and HISTSIZE=10
You start your session.
Your HISTFILE (file that stores your bash command history), is truncated to contain HISTFILESIZE=10 lines.
You write 50 lines.
At the end of your 50 commands, onl...
How do you make lettered lists using markdown?
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Andrew Mascillaro
3691212 bronze badges
answered Mar 15 '13 at 0:01
creativecodercreativecoder
1,19...
Hidden Features of JavaScript? [closed]
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373
votes
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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
7
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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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