Title stata：标题Stata.com ladder — Ladder of powers

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Title stata.com
ladder — Ladder of powers
Description Quick start Menu
Syntax Options for ladder Options for gladder
Options for qladder Remarks and examples Stored results
Methods and formulas Acknowledgment References
Also see
Description
ladder searches a subset of the ladder of powers (Tukey 1977) for a transform that converts
varname into a normally distributed variable.
gladder and qladder each display agraph matrix. gladder displays nine histograms oftransforms
ofvarname according to the ladder ofpowers. qladder displays the quantiles oftransforms ofvarname
according to the ladder of powers against the quantiles of a normal distribution.
Quick start
Table showing Tukey’s ladder of powers transformations for v
ladder v
As above, but with separate tables for each level of the categorical variable catvar
by catvar: ladder v
Display transformations graphically using histograms
gladder v
As above, but using quantile plots
qladder v
Menu
ladder
Statistics > Summaries, tables, and tests > Distributional plots and tests > Ladder of powers
gladder
Statistics > Summaries, tables, and tests > Distributional plots and tests > Ladder-of-powers histograms
qladder
Statistics > Summaries, tables, and tests > Distributional plots and tests > Ladder-of-powers quantile-normal plots
1

Title stata：标题Stata.com ladder — Ladder of powers.pdf (2.04 MB, 需要: 25 个论坛币)

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关键词：ladder Powers Stata Power Title