Created
April 23, 2018 23:20
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dist of mean of dist
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| R=10000; N=1000 | |
| xm = numeric(R) | |
| for (i in 1:R) { | |
| #好きなように | |
| xm[i] = mean(rlnorm(N)) | |
| # xm[i] = mean(rexp(N)) | |
| # xm[i] = mean(runif(N)) | |
| } | |
| hist(xm, breaks = 100, probability = TRUE) | |
| library(MASS) | |
| fit = fitdistr(xm, densfun = "normal") | |
| curve(dnorm(x, fit$estimate[1], fit$estimate[2]), add = TRUE, col = "red") |
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