slopes30lin {fluxible} | R Documentation |
Slopes for each flux
Description
Slopes of linear fit for each flux with a 30 seconds cut at the end of each flux.
Usage
slopes30lin
Format
A tibble with 1251 rows and 22 variables
- datetime
Datetime at which CO2 concentration was recorded.
- temp_air
Air temperature inside the flux chamber in Celsius.
- temp_soil
Ground temperature inside the flux chamber in Celsius.
- conc
CO2 concentration in ppm.
- PAR
Photosynthetically active radiation inside the chamber in micromol/s/sqm.
- turfID
Unique ID of the turf in which the measurement took place.
- type
Type of measurement: ecosystems respiration (ER) or net ecosystem exchange (NEE).
- start
Datetime at which the measurement was started.
- end
Datetime at which the measurement ended.
- fluxID
Unique ID for each flux.
- n_conc
Number of data point per flux.
- ratio
Ratio of n_conc over length of the measurement (in seconds).
- flag
Data quality flags.
- time
Time variable of the flux in seconds.
- cut
Indicating if the measurement should be kept (keep) or discarded (cut).
- p.value
P-value of the linear model of CO2 concentration over time.
- r.squared
R squared of the linear model of CO2 concentration over time.
- adj.r.squared
Adjusted R squared of the linear model of CO2 concentration over time.
- intercept
Intercept of the linear model of CO2 concentration over time.
- slope
Slope of the linear model of CO2 concentration over time.
- fit
Output of the linear model of CO2 concentration over time.
Examples
slopes30lin