Learn how to plot an ROC curve in medcalc

MedCalc is a medical-specific statistical calculation software that is widely used in the field of medical research. The software is not large, but its functions are very powerful. It uses a graphical interface to intuitively and clearly display the statistical results. The main feature of the software is that it can analyze the ROC curve, providing the necessary tools and equipment for analyzing the system characteristic curve ROC, drawing data and performing statistical calculations. But how does medcalc do roc curve? Today I will briefly share with you the medcalc roc curve tutorial.

How to make ROC curve with Medcalc

1. First, open the software.

2. Enter the data to be analyzed. The first column is named g, which represents grouping; the second column is named x, which represents data. Groups are represented by 0 and 1.

3. Click "Statistics"-"ROC curve"-"ROC curve analysis..." to pop up the interface.

4. Select the group corresponding to the variable and click "OK".

5. The first interface that pops up is the ROC curve. The abscissa represents 1-specificity, and the ordinate represents sensitivity.

6. The second interface is specific parameter information, mainly including the area under the curve (AUC) and the percentage of sensitivity and specificity.

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