aphids: Aphids data set
In nclRggplot2: nclRggplot2
Description
The is data described in Matis et al, 2008. The data set consists of five observations on cotton aphid counts on twenty randomly chosen leaves in each plot, for twenty-seven treatment-block combinations. The data were recorded in July 2004 in Lamesa, Texas. The treatments consisted of three nitrogen levels (blanket, variable and zero), three irrigation levels (low, medium and high) and three blocks, each being a distinct area. Irrigation treatments were randomly assigned within each block as whole plots. Nitrogen treatments were randomly assigned within each whole block as split plots. . Note that the sampling times are $t$=0, 1.14, 2.29, 3.57 and 4.57 weeks (i.e. every 7 to 8 days).
- Time
Sampling time (in weeks). This has been slightly simplified
- Water
Water level at that particular plot: Low, Medium and High
- Nitrogen
Nitrogen level at that plot: Blanket, Variable and Zero
- Block
The plot block: 1, 2 or 3
- Aphids
The number of aphids counted
Usage
1
Value
A data frame
nclRggplot2 documentation built on May 2, 2019, 4:59 p.m.
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Description
The is data described in Matis et al, 2008. The data set consists of five observations on cotton aphid counts on twenty randomly chosen leaves in each plot, for twenty-seven treatment-block combinations. The data were recorded in July 2004 in Lamesa, Texas. The treatments consisted of three nitrogen levels (blanket, variable and zero), three irrigation levels (low, medium and high) and three blocks, each being a distinct area. Irrigation treatments were randomly assigned within each block as whole plots. Nitrogen treatments were randomly assigned within each whole block as split plots. . Note that the sampling times are $t$=0, 1.14, 2.29, 3.57 and 4.57 weeks (i.e. every 7 to 8 days).
- Time
Sampling time (in weeks). This has been slightly simplified
- Water
Water level at that particular plot: Low, Medium and High
- Nitrogen
Nitrogen level at that plot: Blanket, Variable and Zero
- Block
The plot block: 1, 2 or 3
- Aphids
The number of aphids counted
Usage
1 |
Value
A data frame
R Package Documentation
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We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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