index.number.chain: Calculate an index number in chain
In IndexNumber: Index Numbers in Social Sciences

Description Usage Arguments Value Author(s) References Examples

This function determines index numbers “in chain” for those cases with an only product.

1	index.number.chain(x, name, opt.plot = FALSE, opt.summary = FALSE)

`x`	It is a vector containing that magnitude to be studied for a product. Thus, we have `length(x)` values of it.
`name`	Chain of characters to indicate the name of the variable under study.
`opt.plot`	Logical option to indicate if a graphical descriptiony of the index number along the different stages is required. It takes the value `TRUE` or `FALSE`.
`opt.summary`	Logical option to indicate if a statistical summary of the index number is required. It takes the value `TRUE` or `FALSE`.

`Summary`	Statistical summary (optional) of the index number along the considered period.
`Index number`	Table containing the values of the index number for the considered stages.
`Graphical`	Graphical summary (optional) of the index number along the considered period.

A. Saavedra-Nieves, P. Saavedra-Nieves

Index Number (2008) In: The Concise Encyclopedia of Statistics. Springer, New York, NY. <doi:https://doi.org/10.1007/978-0-387-32833-1>.

1 2	prices<-c(70,75,77,77,85,90,85,75,77,87,85,90,70,75,77,77,85,90) index.number.chain(prices,"Prices",opt.plot=TRUE,opt.summary=TRUE)

Index number in chain

Summary

Min.=77.7777777777778

Stage=12

Max.=112.987012987013

Stage=10

$Summary
   Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
  77.78  100.00  102.67  101.87  107.14  112.99 

$`Index number`
   Stages Prices Index number
1       0     70    100.00000
2       1     75    107.14286
3       2     77    102.66667
4       3     77    100.00000
5       4     85    110.38961
6       5     90    105.88235
7       6     85     94.44444
8       7     75     88.23529
9       8     77    102.66667
10      9     87    112.98701
11     10     85     97.70115
12     11     90    105.88235
13     12     70     77.77778
14     13     75    107.14286
15     14     77    102.66667
16     15     77    100.00000
17     16     85    110.38961
18     17     90    105.88235