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.
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
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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.
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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.
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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.
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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.
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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.
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YOU
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