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 vote214 views1 answer
Outlier tagging boxplot r
R
2 votes214 views3 answers
Rename columns based on a variable in r
R
0 vote182 views1 answer
How to convert matrix to numeric in r
R
0 vote214 views1 answer
Sequence r
R
1 vote222 views1 answer
R extract everything before character
R
0 vote205 views2 answers
Predict in r
R
0 vote197 views1 answer
Seperate words in column r
R
1 vote217 views1 answer
R combine strings
R
1 vote210 views2 answers
Create a dataframe with column names in r
R
0 vote206 views1 answer
Remove all trailing whitspaces R
R