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Function to calculate days until next birthday in R
Guys could someone help me finish this task. I'm trying to write a function in R where it takes a date of birth in "character" and calculates how many days it is until the next birthday. I k...
AlenArmjwz
Votes: 0
Answers: 0
R: cumulative sum resetting every n rows
Reprex
set.seed(4)
df <- data.frame(week = rep(rep(c(1,2), each=5), times=98),
day = rep(c("Monday", "Tuesday", "Wednesday", "Thursday", &qu...
SourceCoda
Votes: 0
Answers: 1
Looking for the most profitable range (mathematical names: "maximum subarray problem" or "maximum consecutive subsequence sum")
To be able to find the most profitable range, I add the lowest value I want to the highest value I want, with that I create a table like this example:
https://docs.google.com/spreadsheets/d/17zpapBeC5...
Digital Farmer
Votes: 0
Answers: 1
What is a more efficient way to calculate cumulative quantile than cumquant?
I'm trying to calculate the cumulative quantile (10 percentile, 25 percentile, etc.) over a column in a large dataset (over 10 million).
I tried to use the function cumquant from the cumstats package ...
Junyang Guo
Votes: 0
Answers: 0