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Visualizing Databy Dhvanil Patel
Visualizing Databy Dhvanil Patel
Isn’t it all about pretty bar charts? Isn’t it all about pretty bar charts?
Isn’t it just a fancy way of showing numbers? Isn’t it just a fancy way of showing numbers?
Oh, Data Viz? Yeah, I can do that in Excel. Oh, Data Viz? Yeah, I can do that in Excel.
Why do we even need Data Visualization? Why do we even need Data Visualization?
Yeah, I’ve worked with D3.js too. Yeah, I’ve worked with D3.js too.
Isn’t it all about pretty bar charts? Isn’t it all about pretty bar charts?
Isn’t it just a fancy way of showing numbers? Isn’t it just a fancy way of showing numbers?
Oh, Data Viz? Yeah, I can do that in Excel. Oh, Data Viz? Yeah, I can do that in Excel.
Why do we even need Data Visualization? Why do we even need Data Visualization?
Yeah, I’ve worked with D3.js too. Yeah, I’ve worked with D3.js too.No! No!
DIKW Pyramid? DIKW Pyramid?
Data Data
Information Information
Knowledge Knowledge
Wisdom Wisdom
Data Data
Information Information
Knowledge Knowledge
Wisdom Wisdom
It is raining.
Data Data
Information Information
Knowledge Knowledge
Wisdom Wisdom
The temperature dropped 15 degrees and then it started raining.
Data Data
Information Information
Knowledge Knowledge
Wisdom Wisdom
If the humidity is very high and the temperature drops substantially the atmospheres is often unlikely to be able to hold the moisture so it rains.
Data Data
Information Information
Knowledge Knowledge
Wisdom WisdomI should carry an umbrella to office today.
Data Visualization Data Visualization
InformationDesign
InformationDesign
Why is Data Visualization important? Why is Data Visualization important? essential? crucial? neccesary? vital? critical? fundamental?
useful? meaningful? decisive? relevant? far-reaching?
Sight Sight1250Mb/s 1250Mb/s125Mb/s 125Mb/s
Touch Touch12.5Mb/s 12.5Mb/s
SmellHearing
SmellHearingTaste Taste
Sight Sight1250Mb/s 1250Mb/s125Mb/s 125Mb/s
Touch Touch12.5Mb/s 12.5Mb/s
SmellHearing
SmellHearingTaste Taste
Active awareness at any given time
Active awareness at any given time
Human beings are visual creatures. Human beings are visual creatures.
Analysis of Variance (ANOVA) Analysis of Variance (ANOVA) Confounding Factor Confounding Factor Correlation Coefficient Correlation CoefficientDegrees of Freedom (df) Degrees of Freedom (df)
χ² (Chi-Square) χ² (Chi-Square) Sum of Squares Sum of SquaresThe Statistic t The Statistic tAlternative Hypothesis Alternative HypothesisStatistical Significance Statistical Significance
The Statistic Z The Statistic ZOne-Tailed Test One-Tailed Test Critical Value Critical Value Critical Region Critical Region Statistical Test Statistical TestStandard Error Standard Error
F Test F TestPower Powerβ (beta) β (beta) α (alpha) α (alpha) Z Score Z ScoreParameter Parameter Variance VarianceDeviation Deviation Range RangeMode Mode
Type II Error Type II Error Transformation Rules Transformation RulesNormal Distribution Normal Distribution Statistic StatisticMedian MedianMean Mean Histogram Histogram
Regression Regression Related Measures Related MeasuresCentral Limit Theorem Central Limit Theorem Sample Mean (X Bar) Sample Mean (X Bar) Population Population
Standard Deviation Standard DeviationMean MeanMean Square Mean SquareType I Error Type I ErrorTwo-Tailed Test Two-Tailed Test s² s² Prediction Prediction
β (beta) β (beta) Mode Mode Histogram Histogramt Test t TestCritical Region Critical Region Sample Mean (X Bar) Sample Mean (X Bar) Confounding Factor Confounding Factor
Null HypothesisUnbiased Estimate Random Sample Average DeviationStandard Deviation Standard Deviation
Analysis of Variance (ANOVA) Analysis of Variance (ANOVA) Confounding Factor Confounding Factor Correlation Coefficient Correlation CoefficientDegrees of Freedom (df) Degrees of Freedom (df)
χ² (Chi-Square) χ² (Chi-Square) Sum of Squares Sum of SquaresThe Statistic t The Statistic tAlternative Hypothesis Alternative HypothesisStatistical Significance Statistical Significance
The Statistic Z The Statistic ZOne-Tailed Test One-Tailed Test Critical Value Critical Value Critical Region Critical Region Statistical Test Statistical TestStandard Error Standard Error
F Test F TestPower Powerβ (beta) β (beta) α (alpha) α (alpha) Z Score Z ScoreParameter Parameter Variance VarianceDeviation Deviation Range RangeMode Mode
Type II Error Type II Error Transformation Rules Transformation RulesNormal Distribution Normal Distribution Statistic StatisticMedian MedianMean Mean Histogram Histogram
Regression Regression Related Measures Related MeasuresCentral Limit Theorem Central Limit Theorem Sample Mean (X Bar) Sample Mean (X Bar) Population Population
Standard Deviation Standard DeviationMean MeanMean Square Mean SquareType I Error Type I ErrorTwo-Tailed Test Two-Tailed Test s² s² Prediction Prediction
β (beta) β (beta) Mode Mode Histogram Histogramt Test t TestCritical Region Critical Region Sample Mean (X Bar) Sample Mean (X Bar) Confounding Factor Confounding Factor
Null Hypothesis Null HypothesisUnbiased Estimate Unbiased EstimateRandom Sample Random Sample Average Deviation Average DeviationStandard Deviation Standard Deviation
People HATE Statistics. People HATE Statistics.
Data Visualization Data Visualization
InformationDesign
InformationDesign
Anatomy of a Visualization! Anatomy of a Visualization!
Country Military Budget ($B) % GDPUnited Kingdom 55.5 2.0Russia 66.4 5.4South Korea 36.4 2.6Japan 40.9 1.0Germany 39.4 1.2India 51.3 2.3Saudi Arabia 87.2 13.7France 50.9 2.1United States 596.0 3.3China 215.0 1.9
United Kingdom 55.5 2.0Russia 66.4 5.4South Korea 36.4 2.6Japan 40.9 1.0Germany 39.4 1.2India 51.3 2.3Saudi Arabia 87.2 13.7France 50.9 2.1United States 596.0 3.3China 215.0 1.9
Country ($B) % GDP
United States 596.0 3.3China 215.0 1.9Saudi Arabia 87.2 13.7Russia 66.4 5.4United Kingdom 55.5 2.0India 51.3 2.3France 50.9 2.1Japan 40.9 1.0Germany 39.4 1.2South Korea 36.4 2.6
Country ($B) % GDP
United States 596.0 3.3China 215.0 1.9Saudi Arabia 87.2 13.7Russia 66.4 5.4United Kingdom 55.5 2.0India 51.3 2.3France 50.9 2.1Japan 40.9 1.0Germany 39.4 1.2South Korea 36.4 2.6
Country ($B) % GDP
United States
China
Saudi Arabia
Russia
United Kingdom
FranceJapan
Germany
South Korea
India
South Korea
Germany
Japan
France
United Kingdom
Russia
Saudi Arabia
China
United States
India
Japan
France
United Kingdom
Russia
Saudi Arabia
China
United States
India
South Korea
Germany
Japan
France
United Kingdom
Russia
Saudi Arabia
China
United States
India
South Korea
Germany
United States
Japan
France
United Kingdom
Russia
Saudi Arabia
China
India
South Korea
Germany
United States NASA’s budget
Japan
France
United Kingdom
Russia
Saudi Arabia
China
India
South Korea
Germany
Why don’t we bring in Maps?
Why don’t we bring in Maps?
United StatesJapan
France
United Kingdom
Russia
Saudi Arabia
China
India
South Korea
Germany
Military Budget (in $ Billions)
Military Budget (in $ Billions)
United States Japan
France
Russia
Saudi Arabia
India
South Korea
Germany
United Kingdom
China
Military Budget (% of GDP)
Military Budget (% of GDP)
–Ronald Coase –Ronald Coase
“If you torture the data long enough, it will confess.” “If you torture the data long enough, it will confess.”
Information Information
Dis Information Dis Information
Un Information Un Information
Mis Information Mis Information
That’s all well and good, but How do I start?
That’s all well and good, but How do I start?
Step 1 Pick a Dataset!
Step 1 Pick a Dataset!
Step 2Visualize!
Step 2Visualize!
Visualization Tools! Visualization Tools!
three.js
three.js
three.js
Mapping Tools! Mapping Tools!
bit.do/datavisualization bit.do/datavisualization
Data Visualization and it’s Future!
Data Visualization and it’s Future!
Mobile Devices Mobile DevicesTiny screens, huge challenges!
Virtual Reality! Virtual Reality!Different ballgame, altogether!
Brain Computer Interfaces! Brain Computer Interfaces!Different ballgame, altogether!
Feedback ?!Questions ?!
Stones ?!Tomatoes ?!
Shoes ?!Bricks ?!
Feedback ?!Questions ?!
Stones ?!Tomatoes ?!
Shoes ?!Bricks ?!
facebook.com/@flamenfury facebook.com/@flamenfury
twitter.com/@dhvanilp twitter.com/@dhvanilp
mailto : [email protected] mailto : [email protected]: dhvanil.com website: dhvanil.com
Thank you! Thank you!
