Bootstrap in r

How to bootstrap in r

# Import libaries
library(boot)

# Create sample dataframe
set.seed(1)
x <- rnorm(1000, sd=10)
y <- rnorm(1000, sd=1)
df <- data.frame(x,y)

# Create function to pass to boot()
calc_mean = function(data, index){
  mean_x <- mean(df$x[index]) 
  return(mean_x)
}

boot(df$x, calc_mean, R=1000)

Source: stackoverflow.com

How to bootstrap in r

library(boot)

boot_returns <- function(data, indices){
  d <- data[indices]
  Return.calculate(d, method="log")
}

bret <- boot(end_eq, boot_returns, R=1000)

dim(bret$t)
bretMeans <- colMeans(bret$t, na.rm = TRUE)

Source: stackoverflow.com

Similar codes

0 vote168 views1 answer
Assert no missing values in r
R
0 vote118 views1 answer
Dplyr average columns
R
0 vote186 views1 answer
Set row names in r
R
0 vote165 views1 answer
Null count in r
R
0 vote171 views1 answer
Order barplot ggplot2 by value
R
0 vote155 views1 answer
How to set a dataframe as a value in a list in r
R
0 vote162 views1 answer
How to exclude inf in r
R
0 vote156 views1 answer
Slope by row r
R
0 vote174 views1 answer
R change column based on condition
R
1 vote193 views2 answers
Convert dataframe row to vector r
R