germinationmetrics (version 0.1.3)

MeanGermPercent: Mean germination percentage and number of seeds per time interval

Description

Compute the following metrics:

MeanGermPercent

Mean/average germination percentage per unit time () czabator_germination_1962germinationmetrics.

MeanGermNumber

Number of seeds germinated per unit time () khamassi_optimal_2013germinationmetrics.

Usage

MeanGermPercent(germinated.seeds, germ.counts, total.seeds, intervals,
  partial = TRUE)
MeanGermNumber(germ.counts, intervals, partial = TRUE)

Arguments

germinated.seeds

Number of germinated seeds

germ.counts

Germination counts at each time interval. Can be partial or cumulative as specified in the argument partial.

total.seeds

Total number of seeds.

intervals

The time intervals.

partial

logical. If TRUE, germ.counts is considered as partial and if FALSE, it is considered as cumulative. Default is TRUE.

Value

The value of mean germination percentage or mean number of seeds per time interval.

Details

Mean germination percentage per unit time () is computed as follows czabator_germination_1962germinationmetrics.

Where, is the final germination percentage and is the total number of intervals(e.g. days) required for final germination.

Mean number of seeds germinated per unit time () is computed as follows khamassi_optimal_2013germinationmetrics.

Where, is the number of germinated seeds and is the total number of intervals (e.g. days) required for final germination.

References

See Also

GermPercent

Examples

# NOT RUN {
x <- c(0, 0, 0, 0, 4, 17, 10, 7, 1, 0, 1, 0, 0, 0)
y <- c(0, 0, 0, 0, 4, 21, 31, 38, 39, 39, 40, 40, 40, 40)
int <- 1:length(x)

# From partial germination counts
#----------------------------------------------------------------------------
MeanGermPercent(germ.counts = x, total.seeds = 50, intervals = int)
MeanGermNumber(germ.counts = x, intervals = int)

# From cumulative germination counts
#----------------------------------------------------------------------------
MeanGermPercent(germ.counts = y, total.seeds = 50, intervals = int, partial = FALSE)
MeanGermNumber(germ.counts = y, intervals = int, partial = FALSE)

# From number of germinated seeds
#----------------------------------------------------------------------------
MeanGermPercent(germinated.seeds = 40, total.seeds = 50, intervals = int)

# }