From df0bf78b29918522b52e0b74a8b0338862e29d0c Mon Sep 17 00:00:00 2001
From: Holger Frey <frey@imtek.de>
Date: Tue, 18 Jan 2022 11:54:21 +0100
Subject: [PATCH] added apply_map() api function to readme

---
 README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/README.md b/README.md
index ce30658..c0e198e 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,9 @@ from .parser import parse_file, parse_folder  # noqa: F401
    Splits a data frame based on the unique values of a column. Will return a 
    dict, with the unique values as keys and the corresponding data frame as 
    value
+ - **apply_map(data_frame, map, idex_col)**
+   Adds information provided in the nested dictionary `map` to a data frame, 
+   based on the values in the data_frame column `index_col`. 
  - **apply_exposure_map(data_frame, exposure_map)**
    Adds information about the channel and exposure time to a data frame, based 
    on the exposure id. Will get bonus karma points, if the named tuple