update new v0.0.4

NEWS.md

@@ -1,3 +1,45 @@
+# vaccineff 0.0.4
+
+## New Features
+
+`{vaccineff 0.0.4}` simplifies data handling by using 
+[`linelist`](https://github.com/epiverse-trace/linelist) objects. Tags are 
+assigned to the outcome, censoring, and vaccine dates using the function 
+`make_vaccineff_data`, reducing redundancy in function input parameters.
+
+The new pipeline includes the following three functions and complementary 
+methods: `summary` and `plot`.
+
+* **`make_vaccineff_data`**: This function returns an S3 object of the class 
+  `vaccineff_data` with the study's relevant information. It also allows 
+  the creation of a matched cohort to control for confounding variables by 
+  setting `match = TRUE` and passing the appropriate `exact` and `nearest` 
+  arguments. The method `summary()` can be used to check cohort 
+  characteristics, matching balance, and the sizes of matched, excluded, 
+  and removed populations.
+
+* **`plot_coverage`**: This function returns a plot of the vaccine coverage 
+  or cumulative coverage. If the population is matched, the plot includes 
+  the resulting count of doses after matching.
+
+* **`effectiveness`**: This function provides methods for estimating VE using 
+  the $HR$. A summary of the estimation is available via `summary()`, and 
+  a graphical representation of the methodology is generated by `plot()`.
+
+## Breaking changes
+
+The following functions are no longer accessible to users, but they are called 
+within `make_vaccineff_data()`:
+
+* `make_immunization()`
+* `match_cohort()`
+
+The `plot()` method returns `log-log` and `survival` type plots when receiving 
+an object of type `effectiveness`. This deprecates the functions `plot_survival()`
+and `plot_loglog()`.
+
+
+
 # vaccineff 0.0.3
 ## New Features