simstudy (version 0.1.3)

defReadAdd: Read external csv data set definitions for adding columns

Description

Read external csv data set definitions for adding columns

Usage

defReadAdd(filen)

Arguments

filen

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

Value

A data.table with data set definitions

Examples

# Create temporary external "csv" files

test1 <- c("varname,formula,variance,dist,link",
           "nr,7, 0,nonrandom,identity"
          )

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

test2 <- c("varname,formula,variance,dist,link",
           "x1,.4, 0,binary,identity",
           "y1,nr + x1 * 2,8,normal,identity",
           "y2,nr - 0.2 * x1,0,poisson, log"
          )

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

# Generate data based on external definitions

defs <- defRead(tfcsv1)
dt <- genData(5, defs)
dt

# Add additional data based on external definitions

defs2 <- defReadAdd(tfcsv2)
dt <- addColumns(defs2, dt)
dt

unlink(tfcsv1)
unlink(tfcsv2)