HP HP-28S - MEDIAN (Median of Statistics Data)

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Program

+ 2

,""

;:::.

I ENTER I

LMED

ISTOI

Example.

Comments

The

average

the

two

numbers

near

the

center position.

End

the

defining program.

End

the

program.

Put

the

program

the

stack.

Store

the

program

as LMED.

Calculate

the

median

the

list you

sorted

using SORT.

I~~~~I

. IlJIDIRlIDIBJmI

8!IiIIiI

IBID

HIlI.

LMED is called

MEDIAN.

MEDIAN (Median of Statistics Data)

Return

a vector

representing

the

medians

the

columns

the

statis-,

tics data.

Arguments

Results

1 :

Techniques:

• Arrays, lists,

and

stack elements. MEDIAN extracts a

column

data

from

2:DAT

in vector form.

convert

the

vector to a list,

MEDIAN

puts

the

vector elements

the

stack

and

then

combines

them

into

a list. From this list

the

median

is calculated using SORT

and

LMED.

The

median

for

the

mth

column

is calculated first,

and

the

median

for

the

first

column

is calculated last, so as

each

median

is calcu-

lated, it is

moved

the

stack level above

the

previously calculated

medians.

28:

Programming

Examples

273

HP HP-28S - MEDIAN (Median of Statistics Data)

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