screeplot_svd {mirtsvd} | R Documentation |
Scree plot for singular values.
Description
Scree plot for singular values.
Usage
screeplot_svd(data, link = "logit", epsilon = 1e-04, K_max = 10)
Arguments
data |
the data matrix. Entries are either binary or categorical.
Missing entries should be |
link |
the link fucntion. Possible choices are "logit" and "probit". |
epsilon |
the truncation parameter. Default value is 1e-4. |
K_max |
The maximum number of factors contained in data. Default value is 10. |
References
Zhang, H., Chen, Y., & Li, X. (2020). A note on exploratory item factor analysis by singular value decomposition. Psychometrika, 1-15, doi: 10.1007/s11336-020-09704-7.
Examples
require(mirtjml)
# load a simulated dataset
attach(data_sim)
data <- data_sim$response
screeplot_svd(data, K_max = 10)
[Package mirtsvd version 1.0 Index]