There are multiple SO questions addressing some form of this topic, but they all seem terribly inefficient for removing only a single row from a csv file (usually they involve copying the entire file). If I have a csv formatted like so:
I have a vector of elements. I want to populate a set using the elements of this vector that match a certain condition. Can I do this using one line, or in any way that is more concise than the below?
In python, if I have a tuple with many elements, is its hash calculated from its elements' ids or its elements' content?
I just can't seem to find a straight enough answer to this. I can't understand why someone would choose "Get" over "Get2".
I have List<Person> where Person is as below.I'm trying to convert this to List<Person> to Map<String, Map<LocalDate,List<Person>>> where outer map's key is personId and inner map's key is date and I couldn't figure out how to achieve this. Thus far have tried something like below. Open to Java 8 solutions...
I am trying to install python library using pip, getting ssl error. pip version: pip 9.0.1Any idea how to fix this error ?
I have the following data:How can I convert it into something like this?itertools.chain with GroupBy.transform First, get rid of NaNs inside your column using a list comprehension (messy, I know, but this is the fastest way to do it).
I define my own datatype.The question is, if there is a more elegant way to define my range than this?