stereogram: Stereogram fusion

In fastR: Data sets and utilities for Foundations and Applications of Statistics by R Pruim

Description

Results of an experiment on the effect of prior information on the time to fuse random dot steregrams. One group (NV) was given either no information or just verbal information about the shape of the embedded object. A second group (group VV) received both verbal information and visual information (e.g., a drawing of the object).

Usage

data(stereogram)

Format

A data frame with 78 observations on the following 2 variables.

Time

time until subject was able to fuse a random dot stereogram

Group

treatment group: NV(no visual instructions) VV (visual instructions)

Source

These data are available at DASL, the data and story library (http://lib.stat.cmu.edu/DASL/.

References

Frisby, J. P. and Clatworthy, J. L., "Learning to see complex random-dot stereograms," Perception, 4, (1975), pp. 173-178.

Cleveland, W. S. Visualizing Data. 1993.

Examples

data(stereogram)
require(Hmisc)
summary(Time~Group, stereogram,fun=favstats)

Example output

Loading required package: mosaic
Loading required package: dplyr

Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

Loading required package: lattice
Loading required package: ggformula
Loading required package: ggplot2
Loading required package: ggstance

Attaching package: 'ggstance'

The following objects are masked from 'package:ggplot2':

    GeomErrorbarh, geom_errorbarh


New to ggformula?  Try the tutorials: 
	learnr::run_tutorial("introduction", package = "ggformula")
	learnr::run_tutorial("refining", package = "ggformula")
Loading required package: mosaicData
Loading required package: Matrix

The 'mosaic' package masks several functions from core packages in order to add 
additional features.  The original behavior of these functions should not be affected by this.

Note: If you use the Matrix package, be sure to load it BEFORE loading mosaic.

Attaching package: 'mosaic'

The following object is masked from 'package:Matrix':

    mean

The following object is masked from 'package:ggplot2':

    stat

The following objects are masked from 'package:dplyr':

    count, do, tally

The following objects are masked from 'package:stats':

    IQR, binom.test, cor, cor.test, cov, fivenum, median, prop.test,
    quantile, sd, t.test, var

The following objects are masked from 'package:base':

    max, mean, min, prod, range, sample, sum

Loading required package: mosaicCalc
Loading required package: mosaicCore

Attaching package: 'mosaicCore'

The following objects are masked from 'package:dplyr':

    count, tally


Attaching package: 'mosaicCalc'

The following object is masked from 'package:stats':

    D


Attaching package: 'fastR'

The following object is masked from 'package:graphics':

    panel.smooth

Loading required package: Hmisc
Loading required package: survival
Loading required package: Formula

Attaching package: 'Hmisc'

The following objects are masked from 'package:dplyr':

    src, summarize

The following objects are masked from 'package:base':

    format.pval, units

Time     N= 78 

+-------+--+--+----+----+-------+----+----+--------+--------+--+--------+
|       |  |N |min |Q1  |median |Q3  |max |mean    |sd      |n |missing |
+-------+--+--+----+----+-------+----+----+--------+--------+--+--------+
|Group  |NV|43|0.3 |2.30|4.20   |7.60|9.7 |4.839535|2.918344|43|0       |
|       |VV|35|1.0 |2.15|3.60   |6.05|9.7 |4.408571|2.647571|35|0       |
+-------+--+--+----+----+-------+----+----+--------+--------+--+--------+
|Overall|  |78|0.3 |2.30|3.85   |6.75|9.7 |4.646154|2.790554|78|0       |
+-------+--+--+----+----+-------+----+----+--------+--------+--+--------+

fastR documentation built on May 2, 2019, 5:53 p.m.