sf6 | Circuit Breaker / Rate Limiter

I'm still confused about your ask, but I think you should try looking at a loop using enumerate:

http://book.pythontips.com/en/latest/enumerate.html

This will allow you to use the i value as well as the column name.

This question simplifies to: how is all.equal() different from identical(), we go to the documentation for those functions:

all.equal(x, y) is a utility to compare R objects x and y testing ‘near equality’.

and for identical()

The safe and reliable way to test two objects for being exactly equal. It returns TRUE in this case, FALSE in every other case.

Lets look a little closer at all.equal.numeric(), which is what is called on these two objects, since both return "double" with typeof() . We see there is a tolerance argument in all.equal.numeric(), which is set to sqrt(.Machine$double.eps), by default. .Machine$double.eps is the smallest number that your machine can add to 1 and be able to distinguish it from 1. It's not exact, but it's on that order of magnitude. all.equal.numeric() essentially checks to see if all the values in a vector are near() all the values in another vector. You can look at the source code (which is mostly error checking) to see exactly how it does this.

To convince yourself that they are not, in fact, identical(), try looking at the output of sf.centroids - rgeos.centroids.

The reason you are getting xmlns="" added to your embedded XML is that your container element(s) and are declared to be in the "http://www.mynamespace/09262017" namespace by use of the [XmlRootAttribute.Namespace] attribute, whereas the embedded literal XML elements are in the empty namespace. To fix this, your embedded XML literal must be in the same namespace as its parent elements.

Here is the XML literal. Notice there is no xmlns="..." declaration anywhere in the XML: