Description Usage Arguments Details Value See Also Examples
This function allows to read data from a file.
1 2 |
name.file.csv |
Name of the file with data. The file must be in |
header.status |
Indicates if the file has a header row |
separator |
Indicates what is the column separator |
decimal |
Indicates what is the decimal separator |
modality1 |
Name of the column of dataframe that represents the first modality |
testdirection1 |
Indicates the direction of the test for modality 1. If |
modality2 |
Name of the column of dataframe that represents the second modality |
testdirection2 |
Indicates the direction of the test for modality 2. If |
status1 |
Name of the column of dataframe that represents the Status 1 |
related |
Boolean parameter that represents if the two modalities are related or not |
status2 |
Name of the column of dataframe that represents the Status 2 |
The default column separator is ";"
. And the default decimal separator is "."
. header.status
has also a default value that is TRUE
.
By default, the related parameter is set to TRUE
. In this case the status2
is not necessary (by default set to (NULL)
, because in related modalities the status is the same.
Otherwise, if related is set to FALSE
, its necessary to indicate the name of status2
column.
In the data must be listed first all values of the distribution of negative cases (0), followed by the positive ones (1).
This functions returns a list with the following data:
sim1.ind |
Vector with the data for Curve 1 |
sim2.ind |
Vector with the data for Curve 2 |
sim1.sta |
Vector with the status for Curve 1 |
sim2.sta |
Vector with the status for Curve 2 |
1 2 3 4 5 6 7 8 | # This is a simple example how to read a file:
data.filename = "zhang.csv"
modality1DataColumn = "modality1"
modality2DataColumn = "modality2"
modality2StatusHeader = "status" # if different from modality1's header
# (a.k.a they are independent)
zhang = read.file(data.filename, TRUE, ";", ".", modality1, TRUE, modality2, TRUE, "status")
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