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How to reshape data from long to wide format
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Using reshape function:
reshape(dat1, idvar = "name", timevar = "numbers", direction = "wide")
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How do I assert my exception message with JUnit Test annotation?
...a way to do so with JUnit @Test annotation? AFAIK, JUnit 4.7 doesn't provide this feature but does any future versions provide it? I know in .NET you can assert the message and the exception class. Looking for similar feature in the Java world.
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Code for a simple JavaScript countdown timer?
...n a paragraph (or anywhere else on the page), just put the line:
<span id="timer"></span>
where you want the seconds to appear. Then insert the following line in your timer() function, so it looks like this:
function timer()
{
count=count-1;
if (count <= 0)
{
clearInter...
End of support for python 2.7?
...@StianOK It's got its fair share: cvedetails.com/vulnerability-list/vendor_id-10210/…
– Basic
Nov 27 '15 at 17:29
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How do I delete rows in a data frame?
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The key idea is you form a set of the rows you want to remove, and keep the complement of that set.
In R, the complement of a set is given by the '-' operator.
So, assuming the data.frame is called myData:
myData[-c(2, 4, 6), ] ...
Making a property deserialize but not serialize with json.net
...es, but stopped it from serializing them.
– Daniel Saidi
Jun 23 '16 at 8:14
7
In conjunction with...
Get Insert Statement for existing row in MySQL
...tion.
mysqldump -t -u MyUserName -pMyPassword MyDatabase MyTable --where="ID = 10"
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How to keep onItemSelected from firing off on a newly instantiated Spinner?
... fire if you set the adapter before setting up the listener.
That being said, a simple boolean flag would allow you to detect the rogue first selection event and ignore it.
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Turn off textarea resizing
... the textarea HTML is ):
textarea[name=foo] {
resize: none;
}
Or by id (where the textarea HTML is ):
#foo {
resize: none;
}
Taken from:
http://www.electrictoolbox.com/disable-textarea-resizing-safari-chrome/
s...
SQL Server: Difference between PARTITION BY and GROUP BY
...fferent places. group by modifies the entire query, like:
select customerId, count(*) as orderCount
from Orders
group by customerId
But partition by just works on a window function, like row_number:
select row_number() over (partition by customerId order by orderId)
as OrderNumberForThisCus...