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A handful of datasets simulated from an MMRM mechanism. These data sets are used for unit testing and for comparing results against other software, such as Stata and SAS, as well as models from other packages. All datasets have two arms and 4 timepoints, with some outcome values missing at random.

  • sim_mmrm_missing: A dataset with 20 subjects per arm. All subjects have at least one missing value.

  • sim_mmrm_20: 20 subjects per arm with values missing at random.

  • sim_mmrm_40: 40 subjects per arm with values missing at random.

  • sim_mmrm_60: 60 subjects per arm with values missing at random.

  • sim_mmrm_80: 80 subjects per arm with values missing at random.

  • sim_mmrm_100: 100 subjects per arm with values missing at random.

Usage

sim_mmrm_missing

sim_mmrm_20

sim_mmrm_40

sim_mmrm_60

sim_mmrm_80

sim_mmrm_100

Format

sim_mmrm

n_subs

number of subjects per arm

subject

subject ID

arm

arm code (0 or 1)

base

baseline score

time

time point of measurement (1-4)

mus

mean score at timepoint

chg

change from baseline at timepoint (chg = mus + residual error)

An object of class spec_tbl_df (inherits from tbl_df, tbl, data.frame) with 160 rows and 7 columns.

An object of class spec_tbl_df (inherits from tbl_df, tbl, data.frame) with 160 rows and 7 columns.

An object of class spec_tbl_df (inherits from tbl_df, tbl, data.frame) with 320 rows and 7 columns.

An object of class spec_tbl_df (inherits from tbl_df, tbl, data.frame) with 480 rows and 7 columns.

An object of class spec_tbl_df (inherits from tbl_df, tbl, data.frame) with 640 rows and 7 columns.

An object of class spec_tbl_df (inherits from tbl_df, tbl, data.frame) with 800 rows and 7 columns.

Source

internal simulation