# summarizeNumerics: Extracts numeric variables and presents an summary in a... In rockchalk: Regression Estimation and Presentation

## Description

Finds the numeric variables, and ignores the others. (See `summarizeFactors` for a function that handles non-numeric variables). It will provide quantiles (specified `probs` as well as other summary statistics, specified `stats`. Results are returned in a data frame. The main benefits from this compared to R's default summary are 1) more summary information is returned for each variable (dispersion), 2) the results are returned in a form that is easy to use in further analysis, 3) the variables in the output may be alphabetized.

## Usage

 ```1 2 3``` ```summarizeNumerics(dat, alphaSort = FALSE, probs = c(0, 0.5, 1), stats = c("mean", "sd", "skewness", "kurtosis", "nobs", "nmiss"), na.rm = TRUE, unbiased = TRUE, digits = 2) ```

## Arguments

 `dat` a data frame or a matrix `alphaSort` If TRUE, the columns are re-organized in alphabetical order. If FALSE, they are presented in the original order. `probs` Controls calculation of quantiles (see the R `quantile` function's `probs` argument). If FALSE or NULL, no quantile estimates are provided. Default is `c("min" = 0, "med" = 0.5, "max" = 1.0)`, which will appear in output as `c("min", "med", "max")`. Other values between 0 and 1 are allowed. For example, `c(0.3, 0.7)` will appear in output as `pctile_30%` and `pctile_70%`. `stats` A vector including any of these: ```c("min", "med", "max", "mean", "sd", "var", "skewness", "kurtosis", "nobs", "nmiss")```. Default includes all except `var`. "nobs" means number of observations with non-missing, finite scores (not NA, NaN, -Inf, or Inf). "nmiss" is the number of cases with values of NA. If FALSE or NULL, provide none of these. `na.rm` default TRUE. Should missing data be removed to calculate summaries? `unbiased` If TRUE (default), skewness and kurtosis are calculated with biased corrected (N-1) divisor in the standard deviation. `digits` Number of digits reported after decimal point. Default is 2

## Value

a data.frame with one column per summary element (rows are the variables).

## Author(s)

Paul E. Johnson <pauljohn@ku.edu>

## See Also

summarize and summarizeFactors

rockchalk documentation built on May 2, 2019, 5:09 a.m.