feldspar | A programming language | Compiler library

Use

• DataFrame.div with axis=0 to perform division,
• rename to rename the index, and
• append to concatenate the result to the original (you can also use pd.concat instead).

To identify rows that have at least one matching column:

man zip on macOS 10.12.6:

zip has one compression method (deflation) and can also store files without compression.

It goes on to talk about optional bzip2 compression, but zip -Z bzip2 confirms that this is not enabled in the macOS build of zip.

As for which one is used when:

zip automatically chooses the better of the two (deflation or store [..]) for each file to be compressed.

You have 3 problems:

• The FormController which is created by the name attribute of the form is the same name as the submit function: addSubstance. Solution Change one of them. I changed the submit function to insertSubstance in the controller and also inside the ngSubmit directive.

• The function itself - It tries to push the substance object to an undefined variable. But it should actually push it to the array of $scope.gems so it will be displayed in the view when you add it.

• You will not be able to add reviews to the newly added substance because it don't have a reviews array (When you call $scope.addReview from the view). Solution - Add the reviews array before, like this: addsub.reviews = []; (addsub is the object passed to the function).

This is the final function: