dbinoms | R Documentation |
This function draws graphics for a certain number of repetitions of an experiment, at a certain probability of success, and calculates the probability of obtaining one or more values from a random variable.
dbinoms(x, size, prob, log = FALSE, draw = FALSE,
zoom = FALSE, new = FALSE, text = FALSE)
x |
Number of favourable outcomes: a value or a vector of values |
size |
Number of repetitions |
prob |
Probability of success |
log |
Logical; if TRUE, the probability is returned as log(p) |
draw |
Logical; if TRUE, draws the binomial distribution |
zoom |
Logical; if TRUE, eliminates from the graphic all numbers with probability equal to zero |
new |
Logical; if TRUE, a new window will be created for each graphic |
text |
Logical; if TRUE, display the probability above each bar |
Adrian Dusa
dbinom
# 8 repetitions, with a 0.5 probability of success, calculate the
# probability of obtaining between 2 and 4 favourable outcomes
dbinoms(2:4, 8, 0.5)
# less than 7 favourable outcomes
dbinoms(0:6, 8, 0.5)
#at most 7 favourable outcomes
dbinoms(0:7, 8, 0.5)
# above 5 favourable outcomes
dbinoms(6:8, 8, 0.5)
# at least 5 favourable outcomes
dbinoms(5:8, 8, 0.5)
# exactly 6 favourable outcomes
dbinoms(6, 8, 0.5)
# 1, 3 or 6 favourable outcomes
dbinoms(c(1, 3, 6), 8, 0.5)
# same, drawing the graphic
dbinoms(c(1, 3, 6), 8, 0.5, draw = TRUE)
# same, drawing the probabilities in the graphic
dbinoms(c(1, 3, 6), 8, 0.5, draw = TRUE, text = TRUE)
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