simstudy (version 0.7.0)

defReadCond: Read external csv data set definitions for adding columns

Description

Read external csv data set definitions for adding columns

Usage

defReadCond(filen)

Value

A data.table with data set definitions

Arguments

filen

String file name, including full path. Must be a csv file.

See Also

[distributions]

Examples

# Create temporary external "csv" files

test1 <- c(
  "varname,formula,variance,dist,link",
  "x,0.3;0.4;0.3,0,categorical,identity"
)

tfcsv1 <- tempfile()
writeLines(test1, tfcsv1)

test2 <- c(
  "condition,formula,variance,dist,link",
  "x == 1, 0.4,0,binary,identity",
  "x == 2, 0.6,0,binary,identity",
  "x >= 3, 0.8,0,binary,identity"
)

tfcsv2 <- tempfile()
writeLines(test2, tfcsv2)

# Generate data based on external definitions

defs <- defRead(tfcsv1)
dt <- genData(2000, defs)
dt

# Add column based on

defsCond <- defReadCond(tfcsv2)
dt <- addCondition(defsCond, dt, "y")
dt

dt[, mean(y), keyby = x]

unlink(tfcsv1)
unlink(tfcsv2)