Good day house.
Please is there R package and code to calculate MEAN +/- SEM? I know of MEAN +/- SD, but I have not come across MEAN +/- SEM.
Besides, is it possible to generate data set given Mean and SEM like if given Mean and SD?
For example, if given Mean as 5 and SD as 1.4; I can get 10 data sets using the code rnorm(10, mean = 5, sd = 1.4). Is there anything like this for Mean with SEM in R?
SD = Standard Deviation
SEM = Standard Error of Mean
Thanks
Hello Olayinka,
I wasn't completely clear as to what you were asking for in your query, so here are a couple possible answers. I hope that at least one is applicable.
1. To get both mean and se(m) for a data set, many R libraries will furnish this. Here's a link showing how the psych library will compute these (and other) summary statistics: https://rcompanion.org/rcompanion/c_03.html
2. To generate random data fitting some specific target normal population population (with a specific M, SE) for a given sample size, just substitute the value of SE * sqrt(N) for the target value of SD in the call: rnorm(n, mean = target value, sd = target value, computed as indicated).
3. To plot error bars using SEs, the ggplot library is very handy. See this link: https://www.r-graph-gallery.com/4-barplot-with-error-bar.html
Good luck with your work.
Hi!
Use these codes
library(pastec)
stat.desc(x, BASIC =TRUE, NORMAL =TRUE)
Hope it will work
Thanks.
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