Table 1 Overview of the user visible functions in IPDfromKM
From: IPDfromKM: reconstruct individual patient data from published Kaplan-Meier survival curves
Function | Description | Object returned |
|---|---|---|
getpoints | Extract raw data coordinates from published K-M curves. | A data frame containing the x- and y- coordinates of the K-M curve of interest. |
preprocess | Preprocess the read-in data coordinates. | A list including cleaned data ready for reconstruction and a “riskmat” table displaying the index of read-in points within each time interval. |
getIPD | Estimate the IPD. | A list including the reconstructed IPD. |
survreport | Perform survival analysis on reconstructed IPD. | K-M curve, cumulative hazard, times for targeted survival probabilities. |
plot | Plot the object returned by getIPD(). | K-M curves and number at risk for both reconstructed IPD and read-in data. |
summary | Summarize objects returned by getIPD(). | Descriptive results for accuracy assessment and survival analysis on reconstructed IPD. |