gdhr_model: GDH Model - Richardson - for heat accumulation
In RPertille/ChillModels: Processing Chill and Heat Models for Temperate Fruit Trees
Description
Usage
Arguments
Details
Value
References
Examples
Description
Quantifies the Growing Degree Hours at between the base and optimum temperatures.
Usage
1
gdhr_model(x, total = TRUE)
Arguments
x
Vector containing temperature values (Celsius-degree).
total
TRUE Shows the total value of accumulation, FALSE shows the value of GDH for each temperature (TRUE is default).
Details
The GDH model is based on the subtraction of the base temperature of each hourly temperature between 4.5°C and 25°C. The temperature of the base is 4.5°C. Therefore, accumulation under temperatures below 4.5°C and above 25°C is zero.
Value
The function returns values the GDH for each temperature of vector.
References
RICHARDSON, E.A. et al. 1975. Pheno-climatographyof spring 249 peach bud development. HortScience.
Examples
1
2
3
x <- rnorm(500,8,3)
gdhr_model(x)
gdhr_model(x, FALSE)
RPertille/ChillModels documentation built on July 19, 2020, 7:36 p.m.
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Description Usage Arguments Details Value References Examples
Description
Quantifies the Growing Degree Hours at between the base and optimum temperatures.
Usage
1 | gdhr_model(x, total = TRUE)
|
Arguments
x |
Vector containing temperature values (Celsius-degree). |
total |
TRUE Shows the total value of accumulation, FALSE shows the value of GDH for each temperature (TRUE is default). |
Details
The GDH model is based on the subtraction of the base temperature of each hourly temperature between 4.5°C and 25°C. The temperature of the base is 4.5°C. Therefore, accumulation under temperatures below 4.5°C and above 25°C is zero.
Value
The function returns values the GDH for each temperature of vector.
References
RICHARDSON, E.A. et al. 1975. Pheno-climatographyof spring 249 peach bud development. HortScience.
Examples
1 2 3 | x <- rnorm(500,8,3)
gdhr_model(x)
gdhr_model(x, FALSE)
|
R Package Documentation
Browse R Packages
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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