Merge pull request #20 from alexpkeil1/alexpkeil1-patch-1

Update README.md

Author: alexpkeil1

README.md

@@ -146,7 +146,7 @@ fit1 = fit(PHModel, X, enter, t, (event .== 1), ties = "breslow", wts = wt)
 fit2 = fit(PHModel, X, enter, t, (event .== 2), ties = "breslow", wts = wt)
 risk_from_coxphmodels([fit1, fit2])
 
-# this approach operates on left censored outcomes (which operate in the background in model fitting)
+# this approach operates on left truncated outcomes (which operate in the background in model fitting)
 LSurvivalResp(enter, t, d)
 LSurvivalCompResp(enter, t, event)
 
@@ -160,4 +160,4 @@ More documentation can be found here: [stable version](https://alexpkeil1.github
 
 ## Note about correctness
 
-Where possible, results from this package have been validated by comparing results with the `survival` package in `R`, by Terry Therneau. Validation, in this case, requires some choices that may result in differences from the `PHREG` procedure in `SAS` or other software packages for Cox models due to differing approaches to, for example, weighting in the case of ties or the calculation of Martingale residuals under Efron's partial likelihood. See the `survival` package [vignette](https://cran.r-project.org/web/packages/survival/vignettes/validate.pdf) for some details that form the basis of module testing against answers that can be confirmed via laborious hand calculations.
+Where possible, results from this package have been validated by comparing results with the `survival` package in `R`, by Terry Therneau. Validation, in this case, requires some choices that may result in differences from the `PHREG` procedure in `SAS` or other software packages for Cox models due to differing approaches to, for example, weighting in the case of ties or the calculation of Martingale residuals under Efron's partial likelihood. See the `survival` package [vignette](https://cran.r-project.org/web/packages/survival/vignettes/validate.pdf) for some details that form the basis of module testing against answers that can be confirmed via laborious hand calculations.