- published: 15 Jul 2014
- views: 13238
Analysis of data is a process of inspecting, cleaning, transforming, and modeling data with the goal of discovering useful information, suggesting conclusions, and supporting decision-making. Data analysis has multiple facets and approaches, encompassing diverse techniques under a variety of names, in different business, science, and social science domains.
Data mining is a particular data analysis technique that focuses on modeling and knowledge discovery for predictive rather than purely descriptive purposes. Business intelligence covers data analysis that relies heavily on aggregation, focusing on business information. In statistical applications, some people divide data analysis into descriptive statistics, exploratory data analysis (EDA), and confirmatory data analysis (CDA). EDA focuses on discovering new features in the data and CDA on confirming or falsifying existing hypotheses. Predictive analytics focuses on application of statistical models for predictive forecasting or classification, while text analytics applies statistical, linguistic, and structural techniques to extract and classify information from textual sources, a species of unstructured data. All are varieties of data analysis.
Here I give an introduction to the course of data exploration (data analysis) and data mining. I also show an example dataset My web page: www.imperial.ac.uk/people/n.sadawi
About the Speaker: Mike Sherman (http://www.mikesherman.net/) has an MBA with High Distinction from Harvard Business School and Bachelors degrees, Magna Cum Laude, from both the Wharton School and College of the University of Pennsylvania. Mike began his career at Procter & Gamble, where he managed both new and established brands. Mike spent 17 years with McKinsey & Company doing marketing consulting, based in New York and Hong Kong. While there he created their Asia-Pacific marketing practice. Mike was also Global Head of Knowledge Management for Synovate (now Ipsos, a global market research firm) , where he lead efforts to improve the value clients obtain from research. He is now leading the SingTel group's efforts to identify how to better leverage its data to serve customers and dri...
Download workbook: http://people.highline.edu/mgirvin/ExcelIsFun.htm Learn the basics of Data Analysis at Highline Community College Professional Development Day 2012: Topics in Video: 1. What is Data Analysis? ( 00:53 min mark) 2. How Data Must Be Setup ( 02:53 min mark) Sort: 3. Sort with 1 criteria ( 04:35 min mark) 4. Sort with 2 criteria or more ( 06:27 min mark) 5. Sort by color ( 10:01 min mark) Filter: 6. Filter with 1 criteria ( 11:26 min mark) 7. Filter with 2 criteria or more ( 15:14 min mark) 8. Filter by color ( 16:28 min mark) 9. Filter Text, Numbers, Dates ( 16:50 min mark) 10. Filter by Partial Text ( 20:16 min mark) Pivot Tables: 11. What is a PivotTable? ( 21:05 min mark) 12. Easy 3 step method, Cross Tabulation ( 23:07 min mark) 13. Change the calculation ( 26:52 min mar...
Part 1 in a in-depth hands-on series of videos introducing the viewer to Data Science using R. The video series illustrates the complete Data Mining project lifecycle via Kaggle's Titanic 101 competition. All source code from videos are available from GitHub at: https://github.com/EasyD/IntroToDataScience. NOTE - The data for the competition has changed since this video series was started. You can find the applicable .CSVs in the GitHub repo.
A screencast of a seminar I gave at McGill University in March 2015. Materials including an expanded self-learning slideshow and code can be found at http://www.dtdata.io/introml.
Qualitative research is a strategy for systematic collection, organization, and interpretation of phenomena that are difficult to measure quantitatively. Dr. Leslie Curry leads us through six modules covering essential topics in qualitative research, including what it is qualitative research and how to use the most common methods, in-depth interviews and focus groups. These videos are intended to enhance participants' capacity to conceptualize, design, and conduct qualitative research in the health sciences. Welcome to Module 5. Bradley EH, Curry LA, Devers K. Qualitative data analysis for health services research: Developing taxonomy, themes, and theory. Health Services Research, 2007; 42(4):1758-1772. Learn more about Dr. Leslie Curry http://publichealth.yale.edu/people/leslie_curry....
Impact evaluations need to go beyond assessing the size of the effects (i.e., the average impact) to identify for whom and in what ways a programme or policy has been successful. This video provides an overview of the issues involved in choosing and using data collection and analysis methods for impact evaluations
This one-hour webinar will teach the basic skills and tools needed to manage and analyze program data, with a special emphasis on analyzing program outcome data. Participants do not need any special skills; no special software or math skills needed! You will learn about: organizing data into a spreadsheet format, how to perform basic quality assurance with your data, simple mathematical functions for data analysis, how to create new evaluation questions out of your data, and how to interpret data including attention to the context of the data. By the end of this webinar, participants will: * Understand the importance of checking data before it is analyzed * Understand how to organize data into a spreadsheet * Be able to use three methods to analyze data (frequencies, centers...
Part 3 in a in-depth hands-on series of videos introducing the viewer to Data Science using R. The video series illustrates the complete Data Mining project lifecycle via Kaggle's Titanic 101 competition. All source code from videos are available from GitHub at: https://github.com/EasyD/IntroToDataScience. NOTE - The data for the competition has changed since this video series was started. You can find the applicable .CSVs in the GitHub repo. Also check out my blog for additional topics at http://daveondata.com.
Data Interpretation, a tool that is required for day to day decisions for us, is also a key area which is tested for selecting fresh talent in various organization, specifically Banks. State Bank of India's Probationary Officers (SBI PO) Test largely focuses on this area. In fact, The quant section of SBI PO is actually labelled as Data Interpretation & Analysis truly reflecting the importance of this skill in their selection process. With the SBI PO exam round the corner, many of the aspirants have requested for covering this topic in our webcast. Hence, this is being taken up on a top priority basis. In this session by Rohit Agarwal, you will learn those concepts of Percentages, Ratio and Proportions and Averages which form the basics of Data Interpretation and will be used extensively...
Download files: http://people.highline.edu/mgirvin/excelisfun.htm. Intro To Excel: Store Raw Data, Data Types, Data Analysis, Formulas, PivotTables, Charts, Keyboards, Number Formatting, Data Analysis & More: (00:08) Introduction to class (00:49) Cells, Worksheets, Sheet Tabs, Naming Sheets, Workbooks, File Names (02:54) Navigating Worksheets & Workbook (03:58) Navigation Keys (04:15) Keyboard Ctrl + PageUp/PageDown moves Active Sheet (05:40) Ribbon Tabs (06:25) Add buttons to Quick Access Tool Bar (07:40) What Excel does: Store Raw Data, Make Calculations, Data Analysis and Charting (08:55) Introduction to Data Analysis (10:37) Data Types in Excel: Text, Numbers, Boolean, Errors, Empty Cells (11:16) Keyboard Enter puts content in cell and move selected cell down (13:00) Data Type DEFAULT ...
This webinar highlights how MATLAB can work with Excel. Get a Free MATLAB Trial: https://goo.gl/C2Y9A5 Ready to Buy: https://goo.gl/vsIeA5 Learn MATLAB for Free: https://goo.gl/xIiHyG Many technical professionals find that they run into limitations using Excel for their data analysis applications. This webinar highlights how MATLAB can supplement the capabilities of Excel by providing access to thousands of pre-built engineering and advanced analysis functions and versatile visualization tools. Learn more about using MATLAB with Excel: http://goo.gl/3vkFMW Learn more about MATLAB: http://goo.gl/YKadxi Through product demonstrations you will see how to: • Access data from spreadsheets • Plot data and customize figures • Perform statistical analysis and fitting • Automatically gen...
This popular webinar, hosted by Capacity for Health on April 18, 2012, is an introduction to the remainder of the data management and analysis series. For people newer to the field of evaluation, or newer to the tasks of data management and analysis, this one-hour webinar will teach the basic skills and tools needed to manage and analyze program data, with a special emphasis on analyzing program outcome data. Participants do not need any special skills; no special software or math skills needed! You will learn about: organizing data into a spreadsheet format, how to perform basic quality assurance with your data, simple mathematical functions for data analysis (frequencies, median, mode, mean and basic comparisons), how to create new evaluation questions out of your data, and how to inter...