All Questions
2,847
questions
0
votes
2
answers
45
views
Passing in a dataframe from a list of dataframe names as an argument to a function in R
I'm trying to iterate through a list of dataframes and use indexing to pass in each dataframe in the list as an argument to a function. The list is simply a list of each dataframe.
myFunc <- ...
- 1,707
-1
votes
0
answers
31
views
Why does performing a function on a variable change its state? [duplicate]
I am creating a program that sorts a virtual deck of cards. I wanted to use a single variable for a shuffle and then running 2 different sorting algorithms on the shuffled deck. When I defined one ...
-2
votes
0
answers
25
views
How sum function works on expression in python [duplicate]
How generator expression works in python ? because I read that they never say the values in lists or tuples so how can sum calculate the sum for example.
in generator expression where does each value ...
- 1
0
votes
0
answers
10
views
Filtering a list of data frames by date
I am fairly new to R and have a list of data frames which I only want to include data from 2013/14 onwards.
I have assigned df1, df2, df3, df4 to a list named FYdflist. I have assigned 2013/14 as 'b'. ...
1
vote
2
answers
106
views
Recursively Converting a Data Frame to a Nested List Where the Level of Nestedness of the List Equals the Number of Columns in the Data Frame [duplicate]
I have the following data frame.
Data_Frame <- structure(list(Factor_1 = c("AA", "AA", "AA", "AA", "AA", "AA", "AA", "AA&...
- 756
3
votes
2
answers
97
views
Using a Recursive Function to Create a List Nested n Times
I have the following data frame.
Data_Frame <- data.frame(Factor_1 = rep(LETTERS[1:4], each = 12, length.out = 48), Factor_2 = rep(letters[1:3], each = 4, length.out = 48), Factor_3 = rep(1:2, each ...
- 756
-3
votes
2
answers
53
views
Python function with variable number of arguments *arg
I have a function in python that takes the form f(t1, t2, t3, *theta). And I would like to define a new function g(t1, t3, *theta) defined by
So for example, g(1,2,3,4,5) = f(1,2,3,4,5) + f(1,4,3,2,5)...
- 301
-2
votes
0
answers
44
views
I think I have over complicated my statement, any tips?
I have an excel file for a schedule. Its a list of employees and where they're assigned.
For one part, I have employees who always do a position, if that position is open. If they're not here, it ...
- 29
0
votes
2
answers
52
views
How to convert a python character to a python object [duplicate]
I have the following python lists
import pandas as pd
import numpy as np
listOfChars = ['feature1','feature2']
listOfBins = [[0,1,2],[15,20,30]]
I need to define each of the elements in listOfChars ...
- 1,474
0
votes
1
answer
53
views
Is there a way to loop through a custom function to generate multiple ggplot2 graphs in R?
I created a custom function in R to standardize multiple graphs. The function is essentially as follows:
CustomFunction <- function(SpecificEvent) {
ggplot()+
geom_point(data = df[df$...
- 135
1
vote
1
answer
25
views
Long to wide format based on variable suffixes in tidyverse in R
I wonder if there is a way for my DATA to be reformatted to my Desired_output below?
Specifically, for each unique study, we stick together a pair of pre and postNUMBER together, separately for T and ...
- 1,465
0
votes
1
answer
24
views
Build list of widgets from asynchronous call [duplicate]
I need to make a dynamic list of Widgets
Then I created a function that returns a list of widgets
@override
Widget build(BuildContext context) {
return Container(
child: SingleChildScrollView(
...
- 1
1
vote
1
answer
44
views
Providing a list to a function
I've never come across this problem until now and can't think how to proceed.
I would like to know how to provide each element of a tuple to a function that wants individual parameters:
myTuple = (1,2,...
- 220
2
votes
1
answer
54
views
Optimal way to declare a function F to select from a nested set of functions L
I have a set of model equations that i want to group inside a function to call them as required. As an example of desired workflow, it should be as this call:
F(X=t, mode="B")
I have ...
- 147
0
votes
1
answer
28
views
How do I extract ''1,4,8,12, 16..... ''from a list of ''1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16'' on r?
How do I extract ''1,4,8,12, 16..... ''from a list of ''1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16'' on r code?
Currently, I have already tried
a<-1:16
and I have done the first method:
b<-a[seq(1,...
- 1