wm4: Windmill data with direction information and four reference...

Description Format Source References Examples

Description

Windspeed data collected at a test site for a windmill, and also at four nearby long-term weather site, in Northern South Dakota. Data collected every six hours for all of 2002, except that all of the month of May and a few other observations are missing.

Format

A data frame with 1114 observations on the following 14 variables.

Date

A text variable with values like "2002/1/2/6" meaning the reading at 6AM on January 2, 2002

CSpd

Wind speed (m/s) at candidate site

Spd1

Wind speed (m/s) at reference site 1

Spd2

Wind speed (m/s) at reference site 2

Spd3

Wind speed (m/s) at reference site 3

Spd4

Wind speed (m/s) at reference site 4

Spd1Lag1

Lag 1 Wind speed (m/s) at reference site 1

Spd2Lag1

Lag 1 Wind speed (m/s) at reference site 2

Spd3Lag1

Lag 1 Wind speed (m/s) at reference site 3

Spd4Lag1

Lag 1 Wind speed (m/s) at reference site 4

Spd1sin1

Spd times sin(direction) at site 1

Spd1cos1

Spd times cos(direction) at site 1

bin1

Wind direction bin for site 1

Dir1

Wind direction for site 1, in degrees

Source

Mark Ahlstrom and Rolf Miller, WindLogics, Inc.

References

Weisberg, S. (2005). Applied Linear Regression, 3rd edition. New York: Wiley, Section 10.4.1.

Examples

1


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