All Questions
10 questions
0
votes
0
answers
278
views
KDB type error - whilst using functional select/updates
I have the below two functions - the idea here is that id like to create percentiles of bpsAum for different programmes, i also have another function for bpsTrn, id like the limits table to be one ...
0
votes
2
answers
537
views
How to return each line of a text file using a recursive function?
I am trying to return each line of html.txt:
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
My current code is this:
def line_out(file):
if len(file) == 1:...
1
vote
2
answers
412
views
How to apply a function in an iterable list
so I am new to OCaml and im having some trouble with lists.
What I have is a List of chars as follows:
let letters = [a;b;c;d]
I would like to know how can I iterate the list and apply a fuction that ...
- 29
0
votes
1
answer
132
views
Iteratively applying a user written function to pairs stored in two different data frame colums
Consider this data:
set.seed(123)
dat1 <- data.frame(Loc = rep(letters[1:20], each = 10),
ID = 1:200,
var1 = rnorm(200),
var2 = rnorm(200),
...
- 1,068
2
votes
1
answer
143
views
Guidelines for specifying variables in a function
Consider dat1 created here:
set.seed(123)
dat1 <- data.frame(Region = rep(c("r1","r2"), each = 100),
State = rep(c("NY","MA","FL","GA"), each = 10),
Loc = rep(...
- 1,068
3
votes
2
answers
88
views
What's wrong with the logic of this function in R?
I'm tyring to build a function in R which calculates the percentage change between rows based on any arbitrary index, this is, between any given row and the preceding one or any given row and n ...
1
vote
1
answer
48
views
Typescript array of function traversal question
My program has a place where many conditions are checked.
As opposed to writing a big if(conditionOne || conditionTwo || ...) type of expressions, I decided to define an array of filters like so:
...
- 193
-1
votes
2
answers
36
views
Calling Function not Displaying Results
I Create an array of 5 x 5 with random numbers in the following way.
#include <iostream>
#include <stdlib.h>
#include <time.h>
using namespace std;
int main () {
int a[5][5];
...
- 2,446
0
votes
2
answers
86
views
Function assigned to list inside of for loop in R
I'm very confused by what's going on in this example.
I'm trying to write a function factory and pass it a list of parameters to create a list of functions. I've had luck with this method for ...
- 320
1
vote
1
answer
67
views
How can i do calculations on subsets , Panda's way, without looping
I have days like this:
eventday_idxs
2005-01-07 00:00:00
2005-01-31 00:00:00
2005-02-15 00:00:00
2005-04-18 00:00:00
2005-05-11 00:00:00
2005-08-12 00:00:00
2005-08-15 00:00:00
2005-09-06 00:00:00
...
- 6,911