I would like to create a dummy variable that takes the value 1 if an individual is observed in two or more different age groups and 0 otherwise.
Recently I came across this question: Assignment operator chain understanding.While answering this question I started doubting my own understanding of the behavior of the addition assignment operator += or any other operator= (&=, *=, /=, etc.).
I have been struggling with the past 6 hours over this one error, which i am not able to resolve.I imported the project directly from nextgis github. Please identify whats wrong and how to rectify it. here's the screen-shot of the error
My dataset looks like the following R datasetI would like to perform the same operation for each entry in columns A, B, C and D, such that I need to add another column to dat where for each one of these column I sum the entry in each row of...
I need something similar to std::is_same or std::is_base that should be true for e.g. std::xxxx<double, A<double>>::value (since double is type used as template parameter) but false for std::xxxx<int, A<double>>::value at compile time. How to do this?
Here's my situation:I want to make sure the template parameter F&& f only accepts a non-const lvalue reference. How should I enforce this?
This question already has an answer here:I have the following situation:How to convert this to a mechanism in which I only tell python to make n nested loops where the variable name is x1, x2, x3, x4, ...? I don't want to write every possibility manually of course, since there...
I'm confused on this code what is the difference between the two conditions? Why the results are not the same? Example Number 1 - Don't have the same datatype w/ same value, but it returns the same result of true
I'm trying to figure out while the following code works in GCC 7, but not in GCC 8.1.What the code does is:
I just noticed that I can use / to extend the single-line comment to the next line, similarly to doing so in pre-processor directives.