STAT210example5.6: STAT210example5.6: Intensity Level at Target Detection

In thoree/stat340: Data and functions for BIAS at NMBU

STAT210example5.6: Intensity Level at Target Detection

Description

An engineer is studying methods for improving the ability to detect targets on a radar scope. She considers the amount of background noise on the scope and the type of filter placed over the screen to be important factors (fixed-type factors). An experiment was performed with four randomly selected operators (served as blocks). The intensity of the target was increased until the operator observed it. This data shows the measured intensity level at target detection.

Usage

STAT210example5.6

Format

A data frame with 24 observations (rows) and 4 variables (columns).

	Column name	Data type	Description	Values
[,1]	ground_clutter	factor	3 levels of background noise	(high, low, medium)
[,2]	operators	factor	4 different operators	(1, 2, 3, 4)
[,3]	filter_type	factor	Type of filter placed over the screen	(1, 2)
[,4]	intensity_level	integer	Intensity level at target detection	(80 - 114)

Details

This data is from Example 5.6 in Design and Analysis of Experiments. 9th Edition, EMEA Edition.

Source

Montgomery, D. C. (2019) Design and Analysis of Experiments, 9th Edition, EMEA Edition. New York: Wiley.

Examples

# A short summary of the variables
summary(STAT210example5.6)

# Get several plots next to each other
par(mfrow = c(1, 3))
boxplot(intensity_level ~ operators, data = STAT210example5.6,
        col = "lemonchiffon3")
boxplot(intensity_level ~ filter_type, data = STAT210example5.6,
        col = "orchid1")
boxplot(intensity_level ~ ground_clutter, data = STAT210example5.6,
        col = "whitesmoke")

# Reset to default settings
par(mfrow = c(1, 1))

thoree/stat340 documentation built on June 30, 2024, 4:04 p.m.