Description Usage Arguments Value See Also Examples
The create_sim_samples
function generates random samples
with different performance levels.
1 | create_sim_samples(n_repeat, np, nn, score_names = "random")
|
n_repeat |
The number of iterations to make samples. |
np |
The number of positives in a sample. |
nn |
The number of negatives in a sample. |
score_names |
A character vector for the names of the following performance levels.
|
The create_sim_samples
function returns a list
with the following items.
scores: a list of numeric vectors
labels: an integer vector
modnames: a character vector of the model names
dsids: a character vector of the dataset IDs
mmdata
for formatting input data.
evalmod
for calculation evaluation measures.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | ##################################################
### Create a set of samples with 10 positives and 10 negatives
### for the random performance level
###
samps1 <- create_sim_samples(1, 10, 10, "random")
## Show the list structure
str(samps1)
##################################################
### Create two sets of samples with 10 positives and 20 negatives
### for the random and the poor early retrieval performance levels
###
samps2 <- create_sim_samples(2, 10, 20, c("random", "poor_er"))
## Show the list structure
str(samps2)
##################################################
### Create 3 sets of samples with 5 positives and 5 negatives
### for all 5 levels
###
samps3 <- create_sim_samples(3, 5, 5, "all")
## Show the list structure
str(samps3)
|
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