[R] detect and replace outliers by the average

[Dr Eberhard W Lisse]

There is at least one outliers package on CRAN.

el
On 20/04/2023 20:43, AbouEl-Makarim Aboueissa wrote:
> Dear All:  *please discard my previous email*
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> *Re:* detect and replace outliers by the average
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> The dataset, please see attached, contains a group factoring column “
> *factor*” and two columns of data “x1” and “x2” with some NA values. I need
> some help to detect the outliers and replace it and the NAs with the
> average within each level (0,1,2) for each variable “x1” and “x2”.
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> I tried the below code, but it did not accomplish what I want to do.
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> data<-read.csv("G:/20-Spring_2023/Outliers/data.csv", header=TRUE)
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> data
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> replace_outlier_with_mean <- function(x) {
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>   replace(x, x %in% boxplot.stats(x)$out, mean(x, na.rm=TRUE))  #### ,
> na.rm=TRUE NOT working
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> }
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> data[] <- lapply(data, replace_outlier_with_mean)
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> Thank you all very much for your help in advance.
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> with many thanks
> 
> abou
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> 
> ______________________
> 
> 
> *AbouEl-Makarim Aboueissa, PhD*
> 
> *Professor, Mathematics and Statistics*
> *Graduate Coordinator*
> 
> *Department of Mathematics and Statistics*
> *University of Southern Maine*