# Writing a launch file

Hi everyone. I have created a node, which is a nodelet loader. I have also created a plugin, and a plugin analyzer class. I want to load my plugin to the nodelet, action which i perform with class_loader class inside the nodelet's source file. So my question is how to write a launch file which starts the nodelet loader, loads the nodelet and also reads as parameter the analyzer plugin yaml file. My launch file which fails which i wrote for doing the above has as follows:

<launch>