Top "Multi-level" questions

vector of vectors push_back

I'm designing a multilevel queue process simulator in C++ but I've got a problem when trying to implement several queues (…

c++ vector process push-back multi-level
How to simply add a column level to a pandas dataframe

let say I have a dataframe that looks like this: df = pd.DataFrame(index=list('abcde'), data={'A': range(5), 'B': …

python pandas dataframe multi-level
Pandas: Change a specific column name in dataframe having multilevel columns

I want to find the way change name of specific column in a multilevel dataframe. With this data: data = { ('A', …

python pandas dataframe multi-level
multinomial logistic multilevel models in R

Problem: I need to estimate a set of multinomial logistic multilevel models and can’t find an appropriate R package. …

r multi-level multinomial
Python Pandas: drop a column from a multi-level column index?

I have a multi level column table like this: a ---+---+--- b | c | f --+---+---+--- 0 | 1 | 2 | 7 1 | 3 | 4 | 9 …

pandas dataframe multiple-columns multi-level
Getting Items from Dictionary by key

I have this structure: static Dictionary<int, Dictionary<int, string>> tasks = new Dictionary<int, Dictionary&…

c# dictionary multi-level
overriding abstract methods in an inherited abstract class

Okay so basically I have the following problem: I'm trying to have an abstract class inherit another abstract class that …

c# inheritance abstract-class multi-level abstract-methods
Issue with Expanding Multi-Level ExpandableListView

I have a multi level (3 levels, Root -> Parent -> Child) ExpandableListView containing children that are also ExpandableListViews. …

android expandablelistview multi-level
Handling error "TypeError: Expected tuple, got str" loading a CSV to pandas multilevel and multiindex (pandas)

I'm trying to load a CSV file (this file) to create a multiindex e multilevel dataframe. It has 5(five) indexes …

python pandas csv multi-level
How do you get average of sums in SQL (multi-level aggregation)?

I have a simplified table xx as follows: rdate date rtime time rid integer rsub integer rval integer primary key …

sql db2 mainframe aggregation multi-level