WWheat: Winter wheat

In SASmixed: Data sets from "SAS System for Mixed Models"

Description

The WWheat data frame has 60 rows and 3 columns.

Format

This data frame contains the following columns:

Variety

an ordered factor with 10 levels

Yield

a numeric vector of yields

Moisture

a numeric vector of soil moisture contents

Source

Littel, R. C., Milliken, G. A., Stroup, W. W., and Wolfinger, R. D. (1996), SAS System for Mixed Models, SAS Institute (Data Set 7.2).

Examples

str(WWheat)

Example output

'data.frame':	60 obs. of  3 variables:
 $ Variety : Factor w/ 10 levels "1","10","2","3",..: 1 1 1 1 1 1 3 3 3 3 ...
 $ Yield   : num  41 69 53 66 64 64 49 44 44 46 ...
 $ Moisture: num  10 57 32 52 47 48 30 21 20 26 ...
 - attr(*, "ginfo")=List of 7
  ..$ formula     :Class 'formula'  language Yield ~ Moisture | Variety
  .. .. ..- attr(*, ".Environment")=<environment: R_GlobalEnv> 
  ..$ order.groups: logi TRUE
  ..$ FUN         :function (x)  
  ..$ outer       : NULL
  ..$ inner       : NULL
  ..$ labels      :List of 2
  .. ..$ Moisture: chr "Preplant moisture content of top 36 inches of soil"
  .. ..$ Yield   : chr "Winter Wheat Yield"
  ..$ units       :List of 1
  .. ..$ Yield: chr "Bu/Acre"

SASmixed documentation built on May 1, 2019, 9:18 p.m.