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Overview of the stats[transform] Subpackage

Calling Sequence

stats[transform]command](arguments)

command(arguments)

Description

• 

Important: The stats package has been deprecated. Use the superseding package Statistics instead.

• 

The stats[transform] subpackage provides various tools for transforming lists of statistical data.

• 

Each command in the stats[transform] package can be accessed by using either the long form or the short form of the command name in the command calling sequence.

List of stats[transform] Subpackage Commands

• 

The following is a list of available commands.

apply

extends map() to statistical data.

classmark

replace data classes by their class mark (mid-point).

cumulativefrequency

count up the weights of the data items.

deletemissing

delete missing data from the data list.

divideby

divide the data by a number or a

 

descriptive statistics function.

frequency

give the weights of each data item.

moving

compute moving averages and other moving quantities.

multiapply

apply a formula across multiple data lists.

scaleweight

multiply the weights of the data by a given value.

split

split the data list into multiple lists

 

of the same weight.

standardscore

replace each data item by its standard score

 

(z-value).

statsort

sort statistical data.

statvalue

give the value of each data item. That is, set

 

their weight to 1.

subtractfrom

subtract from the data  a number

 

or a descriptive statistics function.

tally

tally each data item.

tallyinto

tally each item into specified classes.

  

To display the help page for a particular stats[transform] command, see Getting Help with a Command in a Package.

• 

Some commands either require or use parameters in addition to the data given as arguments. These parameters appear as an index to the command name. See transform[standardscore] for an example.

• 

If a particular call cannot be evaluated, for example trying to find the mode of a statistical list that contains a non-numeric entry, then the call is returned unevaluated. Information is provided in the variable `stats/lasterror` as to the reason why a call was not evaluated. Also, this information is automatically given if infolevel[stats] has a value greater than or equal to one, prior to the unsuccessful call.

Examples

Important: The stats package has been deprecated. Use the superseding package Statistics instead.

withstats:

data:=4,Weight3,10,missing,Weight1..2,25

data:=4,Weight3,10,missing,Weight1..2,25

(1)

transformdeletemissingdata

4,Weight3,10,Weight1..2,25

(2)

transformstatsortdata

Weight1..2,25,Weight3,10,4,missing

(3)

data2:=1,1,1,2,3,3,4,4,4,4,5,6,6,6,7,8,9,10

data2:=1,1,1,2,3,3,4,4,4,4,5,6,6,6,7,8,9,10

(4)

transformtallydata2

Weight1,3,2,Weight3,2,Weight4,4,5,Weight6,3,7,8,9,10

(5)

Remembering that the left boundary of a class is inclusive, and the right boundary is exclusive (so the 10 above belongs to 10..15 and not 5..10, we have:

transformtallyintodata2,0..5,5..10,10..15

Weight0..5,10,Weight5..10,7,10..15

(6)

See Also

Statistics, Statistics[DataManipulation], stats(deprecated)


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