rstan: stan_csv – R documentation

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stan_csv

Read CSV files of samples generated by (R)Stan into a stanfit object

Description

Create a stanfit object from the saved CSV files that are created by Stan or RStan and that include the samples drawn from the distribution of interest to facilitate analysis of samples using RStan.

Usage

read_stan_csv(csvfiles, col_major = TRUE)

Arguments

`csvfiles`	A character vector providing CSV file names
`col_major`	The order for array parameters; default to `TRUE`

Details

Stan and RStan could save the samples to CSV files. This function reads the samples and using the comments (beginning with "#") to create a stanfit object. The model name is derived from the first CSV file.

col_major specifies how array parameters are ordered in each row of the CSV files. For example, parameter "a[2,2]" would be ordered as "a[1,1], a[2,1], a[1,2], a[2,2]" if col_major is TRUE.

Value

A stanfit object (with invalid stanmodel slot). This stanfit object cannot be used to re-run the sampler.

Examples

csvfiles <- dir(system.file('misc', package = 'rstan'),
                pattern = 'rstan_doc_ex_[0-9].csv', full.names = TRUE)
fit <- read_stan_csv(csvfiles)

rstan

R Interface to Stan

v2.21.2

GPL (>= 3)

Authors

Jiqiang Guo [aut], Jonah Gabry [aut], Ben Goodrich [cre, aut], Sebastian Weber [aut], Daniel Lee [ctb], Krzysztof Sakrejda [ctb], Modrak Martin [ctb], Trustees of Columbia University [cph], Oleg Sklyar [cph] (R/cxxfunplus.R), The R Core Team [cph] (R/pairs.R, R/dynGet.R), Jens Oehlschlaegel-Akiyoshi [cph] (R/pairs.R), John Maddock [cph] (gamma.hpp), Paul Bristow [cph] (gamma.hpp), Nikhar Agrawal [cph] (gamma.hpp), Christopher Kormanyos [cph] (gamma.hpp), Bronder Steve [ctb]

Initial release

2020-07-27