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List distinct values in a vector in R
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Do you mean unique:
R> x = c(1,1,2,3,4,4,4)
R> x
[1] 1 1 2 3 4 4 4
R> unique(x)
[1] 1 2 3 4
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Unable to access JSON property with “-” dash
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287
jsonObj.profile-id is a subtraction expression (i.e. jsonObj.profile - id).
To access a key t...
How to convert FileInputStream to InputStream? [closed]
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edited Jun 19 '12 at 12:37
answered Jun 19 '12 at 12:16
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How to create a video from images with FFmpeg?
...ead of -r for the output framerate
ffmpeg -r 1/5 -i img%03d.png -c:v libx264 -vf fps=25 -pix_fmt yuv420p out.mp4
Alternatively the format video filter can be added to the filter chain to replace -pix_fmt yuv420p like "fps=25,format=yuv420p". The advantage of this method is that you can contro...
How to darken a background using CSS?
...0, 0, 0.7)
),
/* bottom, image */
url(http://fc02.deviantart.net/fs71/i/2011/274/6/f/ocean__sky__stars__and_you_by_muddymelly-d4bg1ub.png);
}
Reference: linear-gradient() - CSS | MDN
UPDATE: Not all browsers support RGBa, so you should have a 'fallback color'....
Delete topic in Kafka 0.8.1.1
...ys working in 0.8.1.1
Deletion should be working in the next release, 0.8.2
kafka-topics.sh --delete --zookeeper localhost:2181 --topic your_topic_name
Topic your_topic_name is marked for deletion.
Note: This will have no impact if delete.topic.enable is not set to true.
Is it possible to ...
How do I escape a percentage sign in T-SQL?
This question also has the answer , but it mentions DB2 specifically.
4 Answers
4
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How do I test which class an object is in Objective-C?
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edited Feb 8 '17 at 9:02
Muruganandham K
5,01155 gold badges2929 silver badges6060 bronze badges
answ...
How do I get SUM function in MySQL to return '0' if no values are found?
...o see it in action, please see this sql fiddle: http://www.sqlfiddle.com/#!2/d1542/3/0
More Information:
Given three tables (one with all numbers, one with all nulls, and one with a mixture):
SQL Fiddle
MySQL 5.5.32 Schema Setup:
CREATE TABLE foo
(
id INT NOT NULL AUTO_INCREMENT PRIMARY ...
Left align and right align within div in Bootstrap
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2018 Update...
Bootstrap 4.1+
pull-right is now float-right
text-right is the same as 3.x, and works for inline elements
both float-* and text-* are responsive for different alignment at different widths (ie: float-sm-righ...