fa cto rp l o t a n d l m p l o t usi n g fa cetg ri d · d ata v i su a li zati o n w i th se a b...
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Using FacetGrid,factorplot and lmplot
D ATA V I S U A L I Z AT I O N W I T H S E A B O R N
Chris Mof�ttInstructor
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DATA VISUALIZATION WITH SEABORN
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DATA VISUALIZATION WITH SEABORN
Tidy dataSeaborn's grid plots require data in "tidy format"
One observation per row of data
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DATA VISUALIZATION WITH SEABORN
FacetGridThe FacetGrid is foundational for many data aware grids
It allows the user to control how data is distributed across columns,
rows and hue
Once a FacetGrid is created, the plot type must be mapped to
the grid
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DATA VISUALIZATION WITH SEABORN
FacetGrid Categorical Example
g = sns.FacetGrid(df, col="HIGHDEG")
g.map(sns.boxplot, 'Tuition',
order=['1', '2', '3', '4'])
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DATA VISUALIZATION WITH SEABORN
factorplot()The factorplot is a simpler way to use a FacetGrid for
categorical data
Combines the facetting and mapping process into 1 function
sns.factorplot(x="Tuition", data=df,
col="HIGHDEG", kind='box')
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DATA VISUALIZATION WITH SEABORN
FacetGrid for regressionFacetGrid() can also be used for scatter or regression plots
g = sns.FacetGrid(df, col="HIGHDEG")
g.map(plt.scatter, 'Tuition', 'SAT_AVG_ALL')
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DATA VISUALIZATION WITH SEABORN
lmplotlmplot plots scatter and regression plots on a FacetGrid
sns.lmplot(data=df, x="Tuition", y="SAT_AVG_ALL",
col="HIGHDEG", fit_reg=False)
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DATA VISUALIZATION WITH SEABORN
lmplot with regression
sns.lmplot(data=df, x="Tuition", y="SAT_AVG_ALL",
col="HIGHDEG", row='REGION')
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Let's practice!D ATA V I S U A L I Z AT I O N W I T H S E A B O R N
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Using PairGrid andpairplot
D ATA V I S U A L I Z AT I O N W I T H S E A B O R N
Chris Mof�ttInstructor
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DATA VISUALIZATION WITH SEABORN
Pairwise relationshipsPairGrid shows pairwise relationships between data elements
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DATA VISUALIZATION WITH SEABORN
Creating a PairGridThe PairGrid follows similar API to FacetGrid
g = sns.PairGrid(df, vars=["Fair_Mrkt_Rent",
"Median_Income"])
g = g.map(plt.scatter)
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DATA VISUALIZATION WITH SEABORN
Customizing the PairGrid diagonalsg = sns.PairGrid(df, vars=["Fair_Mrkt_Rent",
"Median_Income"])
g = g.map_diag(plt.hist)
g = g.map_offdiag(plt.scatter)
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DATA VISUALIZATION WITH SEABORN
Pairplotpairplot is a shortcut for the PairGrid
sns.pairplot(df, vars=["Fair_Mrkt_Rent",
"Median_Income"], kind='reg',
diag_kind='hist')
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DATA VISUALIZATION WITH SEABORN
Customizing a pairplotsns.pairplot(df.query('BEDRMS < 3'),
vars=["Fair_Mrkt_Rent",
"Median_Income", "UTILITY"],
hue='BEDRMS', palette='husl',
plot_kws={'alpha': 0.5})
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Let's practice!D ATA V I S U A L I Z AT I O N W I T H S E A B O R N
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Using JointGrid andjointplot
D ATA V I S U A L I Z AT I O N W I T H S E A B O R N
Chris Mof�ttInstructor
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DATA VISUALIZATION WITH SEABORN
JointGrid() Overview
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DATA VISUALIZATION WITH SEABORN
Basic JointGrid
g = sns.JointGrid(data=df, x="Tuition",
y="ADM_RATE_ALL")
g.plot(sns.regplot, sns.distplot)
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DATA VISUALIZATION WITH SEABORN
Advanced JointGridg = sns.JointGrid(data=df, x="Tuition",
y="ADM_RATE_ALL")
g = g.plot_joint(sns.kdeplot)
g = g.plot_marginals(sns.kdeplot, shade=True)
g = g.annotate(stats.pearsonr)
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DATA VISUALIZATION WITH SEABORN
jointplot()
sns.jointplot(data=df, x="Tuition",
y="ADM_RATE_ALL", kind='hex')
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DATA VISUALIZATION WITH SEABORN
Customizing a jointplot
g = (sns.jointplot(x="Tuition",
y="ADM_RATE_ALL", kind='scatter',
xlim=(0, 25000),
marginal_kws=dict(
bins=15,rug=True),
data=df.query('UG < 2500 &
Ownership == "Public"'))
.plot_joint(sns.kdeplot))
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DATA VISUALIZATION WITH SEABORN
Customizing a jointplot
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Let's practice!D ATA V I S U A L I Z AT I O N W I T H S E A B O R N
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Selecting SeabornPlots
D ATA V I S U A L I Z AT I O N W I T H S E A B O R N
Chris Mof�ttInstructor
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DATA VISUALIZATION WITH SEABORN
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DATA VISUALIZATION WITH SEABORN
Univariate Distribution Analysisdistplot() is the best place to start for this analysis
rugplot() and kdeplot() can be useful alternatives
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DATA VISUALIZATION WITH SEABORN
Regression Analysislmplot() performs regression analysis and supports facetting
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DATA VISUALIZATION WITH SEABORN
Categorical PlotsExplore data with the categorical plots and facet with
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DATA VISUALIZATION WITH SEABORN
pairplot() and jointplot()Perform regression analysis with lmplot
Analyze distributions with distplot
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Thank You!D ATA V I S U A L I Z AT I O N W I T H S E A B O R N