R and Tableau are used in data wrangling and data checking. #1
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Raw datasets contain four types of data: XML, XLSX, CSV and pdf.
The main technology to reformat and data wrangling is python. I used libraries like Pandas, NumPy and Spark Dataframe to process my dataset. Then use D3 version 4 to produce a narrative visualization project. I import some code templates like choropleth map and bar chart with selection. The main diagrams are choropleth maps with tooltips to show smoking and drinking rate in each US state. Bar charts and line chart combined to show the whole changing trend of alcohol consumption. Scatter diagram, bar diagram, line diagram and pie diagram to show cancer cases changes.
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Raw datasets contain four types of data: XML, XLSX, CSV and pdf.