Open data is an excellent source of reliable information in various fields. They are often used on projects to display and/or analyse them, to calculate statistics and make forecasts. But often, difficulties arise in the process of data collection and processing.
The main problems of using open data will be discussed within the talk, and some tips to solve them will be given. Using the example of a real task, we will consider all the stages of collecting and processing open data and discuss the support of their relevance. We will also outline the role of the analyst in tasks related to data collection and processing.