dataframeR
dataframeR.RdProduces a data frame which can be used by the compareR function using values commonly found in published literature. Useful for reviews and meta-analyses.
Arguments
- s11
Number of cases where Test 1 is positive, Test 2 is positive and gold standard is positive.
- s10
Number of cases where Test 1 is positive, Test 2 is negative and gold standard is positive.
- s01
Number of cases where Test 1 is negative, Test 2 is positive and gold standard is positive.
- s00
Number of cases where Test 1 is negative, Test 2 is negative and gold standard is positive.
- r11
Number of cases where Test 1 is positive, Test 2 is positive and gold standard is negative.
- r10
Number of cases where Test 1 is positive, Test 2 is negative and gold standard is negative.
- r01
Number of cases where Test 1 is negative, Test 2 is positive and gold standard is negative.
- r00
Number of cases where Test 1 is negative, Test 2 is negative and gold standard is negative.
Value
A data frame populated with zeros and ones indicating positive or negative test results which can be passed to the compareR function.
Details
Understanding the parameter names: s & r represent positive and negative results for the gold standard test, respectively. The first digit represents a positive (1) or negative (0) result for Test 1. The second digit represents a positive (1) or negative (0) result for Test 2.
Examples
# build data frame using numbers
dataframeR(3, 3, 3, 3, 3, 3, 3, 3)
#> test1 test2 gold
#> 1 1 1 1
#> 2 1 1 1
#> 3 1 1 1
#> 4 1 0 1
#> 5 1 0 1
#> 6 1 0 1
#> 7 0 1 1
#> 8 0 1 1
#> 9 0 1 1
#> 10 0 0 1
#> 11 0 0 1
#> 12 0 0 1
#> 13 1 1 0
#> 14 1 1 0
#> 15 1 1 0
#> 16 1 0 0
#> 17 1 0 0
#> 18 1 0 0
#> 19 0 1 0
#> 20 0 1 0
#> 21 0 1 0
#> 22 0 0 0
#> 23 0 0 0
#> 24 0 0 0