rep is a base package function in R to replicate the elements of a vector
rep is a base function in the R programming language r. It takes a vector or other data structure and replicates its elements the specified number of times.
Questions tagged [rep]
179 questions
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Generating a matrix of ascending values, after every 2 rows, without a for loop in R
I'm trying to generate this matrix without using a for loop (to speed up the processing time):
Module 1 Module 2 Module 3
y0 20 20 20
y1 20 20 20
y0 40 40 40
y1 40 40 …
MBorg
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Generating random numbers in two vectors in R given a specified condition
I want to create two vectors in R that contain values randomly drawn from a uniform distribution given a specified condition, that is for example if the number in vector A is < 50 then the number in vector B should be greater than 50.
I use this…
user4129939
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constructing future coupon payment dates for bonds
I have a Problem and would be very grateful if you could help me.
starting Situation:
Bonds: "026351AZ9" "026351BC9"
First Coupon Date of These Bonds: "2029-02-15" "2010-09-11" (class date)
Count of the years where the bonds pay coupons: 3 years…
I.AH
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Filling a NA-Vector multiple times with the same vector [day number of the year]
I have the following solution, which works, but creates an error message.
day.number.year <- (1:33810)*NA
day.number.year[] <- rep(seq(1,360, by = 1), times = 94)
Warning message:
In day.number.year[] <- rep(seq(1, 360, by = 1), times =…
Nucore
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How to get the factorial using rep statement in r?
I want to get the factorial function with rep statement.
I try!! But failed!!
fact <- function(n){
for (i in 0:n){
while(i
resilience
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4 answers
R repeat a seqeunce reducing max value by 1
I have a sequence of days numbered from 0 (start) to say 5 (last day) I would like to create a list that repeats N times where N is number of days total, in this case it is 6 days (0,1,2,3,4,5), each consecutive repetition should reduce the length…
user3674993
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Repeating elements of one vector according to a second
In MATLAB, if N = 2 this is the line I need:
M = [V(1)*ones(1,L(1)) V(2)*ones(1,L(2))];
If N = 3, the line is:
M = [V(1)*ones(1,L(1)) V(2)*ones(1,L(2)) V(3)*ones(1,L(3))];
How could I write a line producing the same results for an arbitrary N?
baister
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Create vector = (0 1 1 0 0 0 1 1 1 1)?
How can I create the following vector?
vec = (0 1 1 0 0 0 1 1 1 1)
I already tried rep(0:1,times=1:4) which works with numbers other than 0 but does not here...=
letter
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In R: how to simulate the season of an NBA team?
I basically want to create a vector which length is 82. This should contain either "W" or "L", but their occurrences should be randomly determined. I tried with this season<-rep(c("W","L"), times = 1, length.out = 82, each = 1) but I only get this:…
FaCoffee
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Repeat values in a matrix (R)
Here is the code I am working with:
A <- matrix(1:9, nrow = 3)
A
cbind(A,A,A)
This gives an output:
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9]
[1,] 1 4 7 1 4 7 1 4 7
[2,] 2 5 8 2 5 8 2 5 …
Adam Warner
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Generating the input in a known sequence
I am interested in generating the input for the example mentioned in this question. I have generated the input using the below snippet
data.frame(grade = rep(LETTERS[1:5],4,rep=TRUE),
sex = c( rep(c('male','female'), each=5),…
Prradep
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setCellStyle - apply cell style (percent) to matrix using XLConnect
My question is based on an issue mentioned in a previous question Formatting of numbers using Mirai's XLConnect. I have trouble implementing this solution from @joran and I think I might not be the only person with this problem.
I want to export a…
rmuc8
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3 answers
Sort R rows based on the number of repetition
I have a table like:
me mine
1 z ghm
2 d gwm
3 d gom
4 d gum
5 f gom
6 g gum
7 h gom
8 t ghm
9 y gom
10 u gom
how can I sort these data based on the…
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2 answers
add rows to group in df
I have a data.frame with varying numbers of rows per person. If a person has less than 4 rows I would like to give them 4 rows. I would like the extra rows to be a replicate of the the last row per person e.g., Tom below.
I know how to repeat rows…
user2363642
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How to create an indexed vector base on another vector?
I'm trying to create an indexed vector based on another vector. Here is the source vector:
a <- c("A", "A", "B", "C", "D", "E", "E", "E")
and the resulting indexing vector should look like this:
x <- c(1, 2, 1, 1, 1, 1, 2, 3)
I tried this, but…
jrara
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