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 vote106 views1 answer
Change to posixct in r
R
0 vote115 views1 answer
Timestamp conversion from excel R
R
0 vote114 views1 answer
Norm,s,inv in r
R
0 vote105 views1 answer
Filter date in r
R
0 vote114 views2 answers
Animated bar chart race in r
R
0 vote107 views1 answer
How the print backslash in r
R
1 vote141 views1 answer
Make a sequence of timeseries per day in r
R
0 vote115 views1 answer
R - create a new empty variable in a dataset
R
2 votes160 views3 answers
Combine columns in r
R
0 vote116 views1 answer
Extract rse from lm in r
R