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Change Circle color of radio button
...droid:checked="false"
android:layout_height="wrap_content"
/>
Now all you need to do is make a radiobutton_drawable.xml in your drawable folder. Here is what you need to put in it:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/r...
Convert data.frame column format from character to factor
...r approach
mtcars[, 'cyl'] <- as.factor(mtcars[, 'cyl'])
str(mtcars) # now look at the classes
This also works for character, dates, integers and other classes
Since you're new to R I'd suggest you have a look at these two websites:
R reference manuals:
http://cran.r-project.org/manuals.html...
Sort a list by multiple attributes?
...th sort on 2 criteria and use reverse=True. In case someone else wants to know how, you can wrap your criteria (functions) in parenthesis:
s = sorted(my_list, key=lambda i: ( criteria_1(i), criteria_2(i) ), reverse=True)
s...
http HEAD vs GET performance
...ontent and may be used, for example, to see if a resource has changed, to know its size or its type, to check if it exists, and so on.
And remember : early optimization is the root of all evil.
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How to check if hex color is “too black”?
...t; 40) {
// pick a different colour
}
EDIT
Since May 2014 tinycolor now has a getBrightness() function, albeit using the CCIR601 weighting factors instead of the ITU-R ones above.
EDIT
The resulting luma value range is 0..255, where 0 is the darkest and 255 is the lightest. Values greater t...
How update the _id of one MongoDB Document?
I want update an _id field of one document. I know it's not a really good pratice. But with some technical reason, I need update it. If I try to update it I get:
...
Determine font color based on background color
... + 0.587 * $green + 0.114 * $blue ) / 255;
@return ( $l < 0.5 );
}
Now figuring out how to use the algorithm to auto-create hover colors for menu links. Light headers get a darker hover, and vice-versa.
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Symbolic link to a hook in git
I wrote my own custom post-merge hook, now I added a "hooks" directory to my main project folder (since git doesn't track changes in .git/hooks), somewhere I read that I can make a symbolic link from hooks to .git/hooks so I don't have to copy the file from one folder to the other every time someone...
How to create id with AUTO_INCREMENT on Oracle?
...XTVAL
INTO :new.id
FROM dual;
END;
/
UPDATE:
IDENTITY column is now available on Oracle 12c:
create table t1 (
c1 NUMBER GENERATED by default on null as IDENTITY,
c2 VARCHAR2(10)
);
or specify starting and increment values, also preventing any insert into the identity colum...
How do I capture the output of a script if it is being ran by the task scheduler?
...
I know it's been 5 years, but changing this to the accepted answer for being the minimalist way of performing the task.
– Mechaflash
May 8 '19 at 22:40
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