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filter for complete cases in data.frame using dplyr (case-wise deletion)
... are a lot of variables and b) impossible when the variable names are not known (e.g. in a function that processes any data.frame).
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What is the best method of handling currency/money?
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If you are using Postgres (and since we're in 2017 now) you might want to give their :money column type a try.
add_column :products, :price, :money, default: 0
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impr...
How do I add 1 day to an NSDate?
...= [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
// now build a NSDate object for the next day
NSDateComponents *offsetComponents = [[NSDateComponents alloc] init];
[offsetComponents setDay:1];
NSDate *nextDate = [gregorian dateByAddingComponents:offsetComponents toDate: [N...
“x not in y” or “not x in y”
... IronPython are free to ignore or copy (it is not part of the language specification).
– Martijn Pieters♦
Jul 15 '13 at 17:44
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How to paste over without overwriting register
...o select to the end of the word, then y to yank it. After that, I go to a different word that I want to replace. I press v, e then p to replace that one. Then I do it again, but this time the next word is replaced by the one I replaced earlier.
– Eddy
Feb 19 '1...
How do I intercept a method call in C#?
...<b>" + Message + "</b></span>");
return;
}
Now I can have the check at run time without the dependency injection...
No gotchas in site :)
Hopefully you will agree that this is less weight then a AOP Framework or deriving from MarshalByRefObject or using remoting or ...
ssh: connect to host github.com port 22: Connection timed out
...under a proxy and I am pushing in to git successfully for quite a while.
Now I am not able to push into git all of a sudden.
I have set the RSA key and the proxy and double checked them, with no avail and git is throwing me the error shown in the title of the page.
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How does type Dynamic work and how to use it?
... describing the generated implementation. In fact, one can implement four different methods:
selectDynamic - allows to write field accessors: foo.bar
updateDynamic - allows to write field updates: foo.bar = 0
applyDynamic - allows to call methods with arguments: foo.bar(0)
applyDynamicNamed - allo...
Extract value of attribute node via XPath
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What if i would like to extract only the value/description/data present in between the tags ....
– Dinu Duke
Feb 22 '17 at 7:52
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SQL Add foreign key to existing column
If I am using the following SQL command in SQL Server 2008 to update a table with a foreign key constraint:
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