Sensitivity
Sensitivity (also called the true positives rate) measures the proportion of positives that are correctly identified as such (i.e. the percentage of healthy people who are correctly identified as having the condition).
The sensitivity equals the true positives divided by the sum of the false negatives and the true positives.
Formula
![QuantityVariable["sens", "Unitless"] == QuantityVariable["tp", "Unitless"]/(QuantityVariable["fn", "Unitless"] + QuantityVariable["tp", "Unitless"])](https://www.wolframcloud.com/objects/resourcesystem/marketplacestorage/resources/97f/97fc44db-0a73-4189-9c10-9f549faf7aa2/Webpage/FormulaImage.png "Copy to Clipboard")
| symbol | description | physical quantity |
|---|---|---|
| sens | sensitivity | "Unitless" |
| tp | true positives | "Unitless" |
| fn | false negatives | "Unitless" |
Forms
Examples
Get the resource:
| In[1]:= | ![ResourceObject["Sensitivity"]](images/97f/97fc44db-0a73-4189-9c10-9f549faf7aa2-io-1-i.en.gif){kind=small} |
| Out[1]= |  |
Get the formula:
| In[2]:= | ![FormulaData[ResourceObject["Sensitivity"]]](images/97f/97fc44db-0a73-4189-9c10-9f549faf7aa2-io-2-i.en.gif){kind=small} |
| Out[2]= |  |
Use some values:
| In[3]:= | ![FormulaData[
ResourceObject[
"Sensitivity"], {QuantityVariable["fn","Unitless"] -> 2,
QuantityVariable["tp","Unitless"] -> 22}]](images/97f/97fc44db-0a73-4189-9c10-9f549faf7aa2-io-3-i.en.gif){kind=small} |
| Out[3]= |  |