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dplyr: “Error in n(): function should not be called directly”
...or summarize. I also accidentally loaded plyr and dplyr packages in one of my project and realized this conflict. nice work mate.
– Manoj Kumar
Aug 2 '16 at 18:19
add a commen...
Overwrite or override
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This is my understanding of what the differences of Overriding and Overwriting are, in terms of a real-world example:
Assume that you have an automobile manufacturing company. You are famous and happy with your customers since they a...
AngularJs “controller as” syntax - clarification?
...is problem, some folks prefer to write code in a more OOP manner, which in my opinion, makes the code easier to reason about and test.
Here's a fiddle to demonstrate: http://jsfiddle.net/HB7LU/5796/
share
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How do you handle multiple submit buttons in ASP.NET MVC Framework?
...pect the submitted value in your controller method:
<% Html.BeginForm("MyAction", "MyController", FormMethod.Post); %>
<input type="submit" name="submitButton" value="Send" />
<input type="submit" name="submitButton" value="Cancel" />
<% Html.EndForm(); %>
posting to
publ...
Docker and securing passwords
...se, any user that has access to docker on the host also has root anyway.)
My preferred pattern is to use a wrapper script as the ENTRYPOINT or CMD. The wrapper script can first import secrets from an outside location in to the container at run time, then execute the application, providing the secre...
What is the best way to paginate results in SQL Server
...Microsoft added a new feature to SQL 2012 that makes pagination similar to MySQL. Follow this link to learn how. It's an interesting article: dbadiaries.com/…
– Arash
Dec 20 '13 at 13:49
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How to include file in a bash shell script
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In my situation, in order to include color.sh from the same directory in init.sh, I had to do something as follows.
. ./color.sh
Not sure why the ./ and not color.sh directly. The content of color.sh is as follows.
RED=`tpu...
What is an unsigned char?
... . Binary representation of 1234 is 00000000 00000000 00000100 11010010 . My machine is little endian so it reverses it and store in memory 11010010 00000100 00000000 00000000 LSB comes first. Now Main Part . if i use printf("%d" , *p). printf will read first byte 11010010only the output is -46 but...
What is the difference between a map and a dictionary?
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My 2 cents.
Dictionary is an abstract class in Java whereas Map is an interface. Since, Java does not support multiple inheritances, if a class extends Dictionary, it cannot extend any other class.
Therefore, the Map inter...
make arrayList.toArray() return more specific types
...ing it upfront. Since Java6 the empty array is preferred, see .toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])?
If your list is not properly typed you need to do a cast before calling toArray. Like this:
List l = new ArrayList<String>();
String[] a = ((List<String...