Reads the first line of a file, and returns the best matching function to read the breath test data in it. To automatically read the file with the inferred file type, use read_any_breathtest. For Excel files, only the first sheet is read.

breathtest_read_function(filename = NULL, text = NULL)

Arguments

filename

breath test data file from Iris/Wagner (extended or CSV), BreathID

text

as alternative to filename, pass the text of the file directly. This parameter is not used for Excel files.

Value

Function to read the file or the text; NULL if no matching function was found

Examples

file = btcore_file("IrisCSV.TXT") # Get function to read this file. Returns \code{\link{read_iris_csv}}. read_fun = breathtest_read_function(file) str(read_fun(file))
#> List of 23 #> $ patient_id : chr "123456" #> $ name : chr "Einstein" #> $ first_name : chr "Albert" #> $ initials : chr "EA" #> $ dob : logi NA #> $ birth_year : logi NA #> $ gender : logi NA #> $ study : chr "GE FEST" #> $ pat_study_id: logi NA #> $ file_name : chr "IrisCSV.TXT" #> $ device : chr "Iris" #> $ substrate : chr "acetate" #> $ record_date : chr "2013-09-13" #> $ start_time : chr "2013-09-13" #> $ end_time : chr "2013-09-13" #> $ test_no : int 9999 #> $ dose : num 100 #> $ height : num 180 #> $ weight : num 75 #> $ t50 : logi NA #> $ gec : logi NA #> $ tlag : logi NA #> $ data :'data.frame': 14 obs. of 3 variables: #> ..$ minute: num [1:14] 0 10 20 45 60 75 90 105 120 140 ... #> ..$ dob : num [1:14] 0 2.02 5.22 8.9 9.48 ... #> ..$ pdr : num [1:14] 0 1.11 2.86 4.87 5.19 ... #> - attr(*, "class")= chr "breathtest_data"
# or, simple (returns a list!) str(read_any_breathtest(file), 1 )
#> List of 1 #> $ :List of 23 #> ..- attr(*, "class")= chr "breathtest_data" #> - attr(*, "class")= chr "breathtest_data_list"