how to calculate percentile
In statistics, a percentile (or centile) is the value of a variable below which a certain percent of observations fall. For example, the 20th percentile is the value (or score) […]
Category Archives: Statistics
install R package without root access(on Linux)
R is a nice compannon for stataitical people.From time to time, I have to install various packages to accomplish some tasks. At my desktop (linux server), I have the root […]
manually install and use perl module locally (without cpan)
I want calculate days, Date::Calc is a good choice. After a list of tests, I drew a chain of dependences Date::Calc => Bit::Vector Carp::Clan => Test::Exception => Sub::Uplevel Dowload all […]
linux games, chess
I self-rate myself as “computer literated”. However, unlike most of IT geeks, computer game is not on my menu. It is pity I have never got my hands wet in […]
transpose one line/lines from row to column using shell (awk,sed)
When manipulating data, sometime, I want transpose 1 line or lines from row to column. for example, from this c1,c2,c3 1,2,3 4,5,6 7,8,9 to that c1,1,4,7 c2,2,5,8 c3,3,6,9 To do […]
Relationship based on pedigree
Relationship between individuals can be calculated using the pedigree information. A pedigree can be illustrated in many ways, the common diagram is demonstrated as below. The process of calculating relationship […]
perl and R
Perl Module Statistics-R RSPerl This package provides a bidirectional interface for calling R from Perl and Perl from R. This seems a good solution. Installation of RSPerl via sudo R […]
R Statistics and graphics
R becomes popular in statistics and data visualisation. This is not a compound summary or review, rather than a collection of my picks to install R package to your local […]
Openoffice oocalc weired behaour on CSV file
to open a CSV file using openoffice oocalc, the output surprised my a lot. the CSV contains lines as this MON060240,Roslyn,MOM06-240 MON050042,Roslyn,MON05-42S MON050018,Roslyn,MOM05-18 MON050002,Roslyn,MON05-2 MON050032,Roslyn,MON05-32 MON050060,Roslyn,MON05-60 MON050008,Roslyn,MON05-8 MON050028,Roslyn,MON05-28 M0N050040,Roslyn,MON05-40S open […]
Statistics and Australian Politics
Australian election 2010 resulted in a hung government. So far, Labor managed 74 seats (72 Labor, 1 independent and 1 Greens), Liberal and National Coalition got 73 seat. The remaining […]
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