Data Commence reposted this
Goldman Sachs Data Analyst Interview Questions for 0-3 years of experience:- 2. How would you visualize time-series data in Power BI/Tableau? ➡️ Time-series data means information recorded over time, like daily temperature, monthly sales, or yearly revenue. ➡️ In Power BI, use a line chart by placing the date on the X-axis and sales or values on the Y-axis. This helps to see trends clearly. ➡️ Use an area chart if you want to show total growth over time with a filled background. ➡️ Add a time slicer so users can filter data by year, month, or week. ➡️ Enable forecasting in the line chart to predict future trends based on past data. ➡️ In Tableau, drag the date column to the X-axis and the measure (like sales) to the Y-axis to create a line chart. ➡️ Convert the date to continuous format to make the trend smoother and avoid gaps in data. ➡️ Add filters to let users explore specific time ranges like a particular year, quarter, or month. ➡️ Use the forecasting feature under the analytics pane to predict future trends based on historical patterns. ➡️ The best way to visualize time-series data is by using a line chart with filters and forecasting to understand past trends and future predictions. Hope everyone understood ! How do you visualize time-series data in Power BI or Tableau? Comment below! 𝐑𝐞𝐟𝐞𝐫𝐫𝐚𝐥𝐬/𝐑𝐞𝐬𝐨𝐮𝐫𝐜𝐞𝐬✅: https://lnkd.in/gcw-ziZm MADHU THANGELLA connect with me for more updates ! #dataanalyst #powerbi #interview #freshers