# Bootstrap a statistic in a grouped sample 1.0

OS : Windows / Linux / Mac OS / BSD / Solaris

Script Licensing : Freeware

Created : Sep 15, 2007

Downloads : 4

Thank you for voting...

## Function BSTRAG builds on an earlier FEX submission, ...

Function bstrag builds on an earlier FEX submission, bstrap - itself an extension of BOOTSTRP (Statistics Toolbox, v. 5-6) - by implementing 'groupwise' operation, wherein rows of x (, y, z, . . ) are split into several groups (having n1, n2, n3, . . rows), marked by distinct values of grouping variable c, and each resampling iteration randomly selects n1 rows from group 1, n2 rows from group 2, etc.

Syntax of BSTRAG is similar to that of BSTRAP, but differs in requiring an extra input argument, group-assignment vector, which must also be supplied to the function computing (matrix- or structure-valued) bootstrapped statistic.

Function BSTATS inputs an array or a structure array produced by BSTRAP, and outputs means, variances and (2. 5%, 97. 5%) percentiles of the bootstrap distributions. (Percentiles are calculated using PRCTILE of statistics Toolbox - replacing it with a user-contributed analog should be straightforward).

See BSTRAG_DEMO and BSTRAP_DEMO for examples.

Syntax of BSTRAG is similar to that of BSTRAP, but differs in requiring an extra input argument, group-assignment vector, which must also be supplied to the function computing (matrix- or structure-valued) bootstrapped statistic.

Function BSTATS inputs an array or a structure array produced by BSTRAP, and outputs means, variances and (2. 5%, 97. 5%) percentiles of the bootstrap distributions. (Percentiles are calculated using PRCTILE of statistics Toolbox - replacing it with a user-contributed analog should be straightforward).

See BSTRAG_DEMO and BSTRAP_DEMO for examples.

**• MATLAB Release: R14SP1**

**Demands:****Bootstrap a statistic in a grouped sample 1.0 scripting tags:**bstrag, grouped, statistic, array, rows, bstrap, statistics, bootstrap statistic, statistics probability, grouped sample.

**What is new in Bootstrap a statistic in a grouped sample 1.0 software script?**- Unable to find Bootstrap a statistic in a grouped sample 1.0 news.

**What is improvements are expecting?**Newly-made Bootstrap a statistic in a grouped sample 1.1 will be downloaded from here. You may download directly. Please write the reviews of the Bootstrap a statistic in a grouped sample. License limitations are unspecified.