Eight free, easy-to-use, and powerful tools to help you analyze and visualize data, analyze social networks, do optimization, search more efficiently, and solve your data analysis problems.

1. TOP 8
DATAANALYSIS
TOOLS
Page 1

2. OPEN REFINE
• OpenRefine (formerly Google Refine) is a powerful
tool for working with messy data: cleaning it;
transforming it from one format into another; and
extending it with web services and external data.
• OpenRefine can help you explore large data sets
with ease. For eg.
 Cleaning up inconsistent spelling of terms (i.e.
"USA", "U.S.A", "U.S.", etc).
 Removing duplicate rows
 Extracting and cleaning values for dates
Pic credit: learningalliances.netPage 2

3. NODE XL
• NodeXL Basic is a free, open-source template for
Microsoft® Excel® 2007, 2010, 2013 and 2016 that
makes it easy to explore network graphs.
• NodeXL Pro offers additional features that extend
NodeXL Basic, providing easy access to social
media network data streams, advanced network
metrics, and text and sentiment analysis, and
powerful report generation.
• Features: Graph Metric Calculations, Flexible
import/export, Zoom and Scale, Dynamic Filtering
etc.
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4. TABLEAU PUBLIC
• Tableau democratizes visualization in an elegantly
simple and intuitive tool. It is exceptionally
powerful in business because it communicates
insights through data visualization.
• Tableau Public's million row limit provides a great
playground for personal use and the free trial is
more than long enough to get you hooked.
• Tableau's visuals allow you to quickly investigate a
hypothesis, sanity check your gut, and just go
explore the data before embarking on a
treacherous statistical journey.
Pic credit: public.tableau.com/Page 4

5. KNIME
• KNIME is an open source data analytics, reporting
and integration platform.
• Use KNIME for effortless access to all of your data;
apply powerful analysis and statistics; visualize
and create compelling reports – for free.
• Additional plugins allows the integration of
methods for Text mining, Image mining, as well as
time series analysis.
Pic credit: knime.orgPage 5

6. RAPID MINER
• RapidMiner empowers enterprises to easily
mashup data, create predictive models and
operationalize predictive analytics within any
business process.
• It supports all steps of the data mining process
including data preparation, results visualization,
validation and optimization.
Pic credit: mloss.orgPage 6

7. WOLFRAM ALPHA
• Wolfram Alpha is a computational knowledge
engine.
• It is an online service that answers factual queries
directly by computing the answer from externally
sourced curated data, rather than providing a list
of documents or web pages that might contain
the answer as a search engine might.
Pic credit: wolfram-alpha.en.softonic.comPage 7

8. GOOGLE FUSION TABLES
• Google Fusion tables is an incredible tool for data
analysis, large data-set visualization, and
mapping.
• Filter and summarize across hundreds of
thousands of rows.
• Then try a chart, map, network graph, or custom
layout and embed or share it.
• Collaborate! All your data organization is
automatically saved and stored in Google Drive
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9. SOLVER
• Solver is an optimization and linear programming
tool in excel that allows you to set constraints
(Don't spend more than this many dollars, be
completed in that many days, etc).
• You can use Solver, for example, to determine the
most efficient shipping routes, maximize
income/sales/etc., or discover the best product
mix.
• In Excel 2010, a number of new report types are
available viz. Linearity, Feasibility & Population
report.
Pic credit: blogs.office.comPage 9

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