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On Monday, May 25, 2020 3:01 AM, Samuel Sieb <sam...@sieb.net> wrote:
> On 5/24/20 5:34 PM, None via users wrote:
>
> > Dear fellow fedora users,
> > If I have a data file called 15.dat with the following content:
> > $ cat 15.dat
> > 1
> > 3
> > 1
> > 0
> > 2
>
> I think you dropped the "6" from this copy.
>
> > And I want to find min, quartile 1, median, quartile 3 and maximum (Five
> > number summary)
> > We can use datamash like
> > $ cat 15.dat | datamash min 1 q1 1 median 1 q3 1 max 1 0 1 1.5 2.75 6
> > Q3 is reported as 2.75 but if we split the data file in half the number is
> > 3.
>
> I looked at the various ways of calculating quartiles and I can't find
> one that gives this result, but it is the same result as you can get
> from R (which datamash claims to be equivalent to):
> data <- c(0,1,1,2,3,6)
> summary(data)
>
> Min. 1st Qu. Median Mean 3rd Qu. Max.
> 0.000 1.000 1.500 2.167 2.750 6.000
>
> I can't tell you any more than that.
>
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I have heard of R but I am looking for awk/bash, bc or dc solution. A website
does give 3 as q3 instead of 2.75. Please see below
https://www.hackmath.net/en/calculator/five-number-summary
1 3 1 0 2 6
Minimum: 0
Quartile Q1: 1
Median: 1.5
Quartile Q3: 3
Maximum: 6
Calculation:
Statistical file:
{14, 0, 4, 0, 0, 1, 1, 7, 1, 0, 3, 1, 2, 0}
Minimum: 0
Quartile Q1: 0
Median: 1
Quartile Q3: 3
Maximum: 14
I would like to get the same since and correct solution since datamash and R do
not output the same.
Best Regards
Antonio
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