Project work as part of Udacity Data Analyst nanodegree course
Softwares used : Python v2.7 and sqlite3
In this project data wrangling on OSM file of New-Delhi, India is done. The OSM file is downloaded from the following links :
- https://www.openstreetmap.org/node/16173236
- https://mapzen.com/data/metro-extracts/metro/new-delhi_india/
The downloaded file will be in compressed state, it is extracted to get a OSM file of larger size. The OSM file hence downloaded new-delhi_india.osm will be quiet large size and is difficult to read using a text editor. So the file size is reduced to make it readable and get an idea of the data to be wrangled.
This repository consists of the following files :
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1.Project_report.md : This is the final report of the work done on this project.
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2.Final_code.ipynb : This file contains the codes for gathering and extracting the data from the OSM file. The data is then cleaned as per the programmer's requirements. Also the cleaned data is stored in CSV files.
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2.csvs_to_database.ipynb : Using the code in this file, each of the CSV files is exported as tables to be stored in a database. Using these database we perform the sql queries.
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3.link.txt : Contains the links to to the map position.
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4_GetSample_OSM.ipynb : This file contains the code to get a sample of the large OSM file.
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sample_delhi.osm : This smaller file can aid the programmer in understanding the data involved and the basic structure of the code. The programmer can start working on these smaller samples of OSM files and then proceed to work on the larger OSM file.
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5.References.txt : Contains a list of Web sites, forums, blog posts, etc referred to in this submission