Log Transformation

@Khurram wrote:

As we know to convert right skewed data into symmetry we have to transform using log. I tried the same in R (code as below) for some sample data in order to understand the shape coverts from right skewed data to normal distribution or not.

y<-c(2,2,2,2.5,3,2,100,120)
hist(y)
y<-log(y)
y
[1] 0.6931472 0.6931472 0.6931472 0.9162907 1.0986123 0.6931472 4.6051702 4.7874917
hist(y)

as you see 100 and 120 makes the above data set into right skewed in untransformed data histogram figure

I take log of these data in order to make them normally distributed , after taking log the histogram does not seem to me normally distributed it looks me weird , is it due to lack of data or I am missing something

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Transferred Data.PNG587x818 31.7 KB

Thanks in advance

KS

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