List of examples

List of examples

Description Type Chap Link
Quantitative data ✍️ 1 Example exm-data-quantitative
Floating-point numbers πŸ’» 1 Example exm-data-float
Infinity and NaN πŸ’» 1 Example exm-data-inf-nan
Dates and times in NumPy πŸ’» 1 Example exm-data-datetime
Vectors in Python πŸ’» 1 Example exm-data-vector
Accessing vector elements πŸ’» 1 Example exm-data-access
Slicing vectors πŸ’» 1 Example exm-data-slice
Arrays in Python πŸ’» 1 Example exm-data-array
Indexing arrays πŸ’» 1 Example exm-data-array-index
Array reductions πŸ’» 1 Example exm-data-array-reduce
Ordinal data ✍️ 1 Example exm-data-categorical
Dummy variables ✍️ 1 Example exm-data-dummy
Series ✍️ 1 Example exm-data-series
Series in pandas πŸ’» 1 Example exm-data-series-create
Operations on series πŸ’» 1 Example exm-data-series-operate
Series and frames in pandas πŸ’» 1 Example exm-data-frames-create
Operations on data frames πŸ’» 1 Example exm-data-frames-operate
Importing CSV data πŸ’» 1 Example exm-data-read
iloc for rows in a frame πŸ’» 1 Example exm-data-row-iloc
loc for rows in a frame πŸ’» 1 Example exm-data-row-loc
Selecting rows in a frame πŸ’» 1 Example exm-data-row-select
Concatenating data in pandas πŸ’» 1 Example exm-data-concat
Merging data in pandas πŸ’» 1 Example exm-data-merge
Merging data πŸ’» 1 Example exm-data-merge-weather
Handling missing values in pandas πŸ’» 1 Example exm-data-missing
Cleaning a data frame πŸ’» 1 Example exm-data-loans
Encoding qualitative data πŸ’» 1 Example exm-data-encoding
Dummy variables in pandas πŸ’» 1 Example exm-data-dummies
Summary statistics in pandas πŸ’» 2 Example exm-stats-summary
Standard deviation by hand ✍️ 2 Example exm-stats-maxvar
Sample variance ✍️ 2 Example exm-stats-sample
Mean, variance, STD in pandas πŸ’» 2 Example exm-stats-meanvar-pandas
Z scores ✍️, πŸ’» 2 Example exm-stats-zscores
Z scores in Python πŸ’» 2 Example exm-stats-zscores-py
Median ✍️ 2 Example exm-stats-median
Quantiles πŸ’» 2 Example exm-stats-quantiles
Quartiles and IQR πŸ’» 2 Example exm-stats-describe
ECDF of penguins πŸ’» 2 Example exm-stats-ecdf-penguins
ECDF of a simple distribution ✍️ 2 Example exm-stats-uniform-discrete
ECDF of penguins πŸ’» 2 Example exm-stats-ecdf-penguins
CDF of a uniform distribution ✍️ 2 Example exm-stats-uniform-continuous
ECDF of temperatures πŸ’» 2 Example exm-stats-temps-ecdf
PDF of temperature distribution ✍️ 2 Example exm-stats-temps-pdf
PDF of a uniform distribution ✍️ 2 Example exm-stats-uniform-pdf
Uniform random numbers in NumPy πŸ’» 2 Example exm-stats-numpy-uniform
Normal distribution in NumPy πŸ’» 2 Example exm-stats-normal
Grouping data πŸ’» 2 Example exm-stats-groups
Facet plots πŸ’» 2 Example exm-stats-groups-facet
Box and violin plots πŸ’» 2 Example exm-stats-groups-box-violin
Aggregating data in groups πŸ’» 2 Example exm-stats-groups-aggregation
Grouping data by cuts πŸ’» 2 Example exm-stats-groups-cuts
Outliers for mean and median ✍️ 2 Example exm-stats-median-mean
Interquartile range πŸ’» 2 Example exm-stats-outlier-iqr
Outliers πŸ’» 2 Example exm-stats-outlier-std
Outliers and the Pearson coefficient πŸ’» 2 Example exm-stats-pearson-outlier
Spearman correlation coefficient πŸ’» 2 Example exm-stats-spearman-outlier
Categorical correlation πŸ’» 2 Example exm-stats-catcorr
The Datasaurus πŸ’» 2 Example exm-stats-datasaurus
Correlation vs. dependence πŸ’» 2 Example exm-stats-correlation
Simpson’s paradox πŸ’» 2 Example exm-stats-simpson
Digit classification πŸ’» 3 Example exm-class-digits
Feature matrix ✍️ 3 Example exm-class-emoji
Train–test split πŸ’» 3 Example exm-class-traintest
Testing accuracy πŸ’» 3 Example exm-class-accuracy
Combined metrics ✍️ 3 Example exm-class-scores-simple
Multiclass one-vs-rest ✍️ 3 Example exm-class-one-vs-rest
Multiclass metrics πŸ’» 3 Example exm-class-multiclass
Decision tree ✍️ 3 Example exm-class-tree
Gini impurity ✍️ 3 Example exm-class-gini-spread
Gini impurity ✍️ 3 Example exm-class-gini
Tree partitioning ✍️ 3 Example exm-class-tree-partition
Inspecting a decision tree πŸ’» 3 Example exm-class-tree-toy
Tree classifier for the penguins dataset πŸ’» 3 Example exm-class-tree-penguins
Interpreting a decision tree πŸ’» 3 Example exm-class-tree-penguins-interpret
Calculating distance ✍️ 3 Example exm-class-distance
kNN classifier ✍️ 3 Example exm-class-knn-small
kNN classifier for the penguins dataset πŸ’» 3 Example exm-class-knn
kNN sensitivity to scaling ✍️ 3 Example exm-class-knn-norm
Pipeline for standardizing columns πŸ’» 3 Example exm-class-knn-standard
Probabilistic classifier ✍️, πŸ’» 3 Example exm-class-phat
Probabilistic classifier for the penguins dataset πŸ’» 3 Example exm-class-prob
Varying decision threshold πŸ’» 3 Example exm-class-hits
ROC curve πŸ’» 3 Example exm-class-roc
Area under ROC curve πŸ’» 3 Example exm-class-auc
Hyperparameters ✍️ 4 Example exm-select-hyper
Learning curves πŸ’» 4 Example exm-select-learning-curves
Overfitting πŸ’» 4 Example exm-select-overfit-digits
Bagging ensemble classifier πŸ’» 4 Example exm-select-ensemble-knn
Bagging ensemble (better) πŸ’» 4 Example exm-select-ensemble-knn-better
Folds for validation ✍️ 4 Example exm-select-folds
Cross-validation grid search πŸ’» 4 Example exm-select-grid-cancer
Linear regression ✍️ 5 Example exm-regression-linear
Inner product ✍️ 5 Example exm-regression-dot
Mean squared and mean absolute error ✍️ 5 Example exm-regression-mse-mae
Coefficient of determination ✍️ 5 Example exm-regression-cod
Linear regression for sea ice dataset πŸ’» 5 Example exm-regression-ice-linear
Matrix times vector ✍️ 5 Example exm-regression-matvec
Multilinear regression for MPG dataset πŸ’» 5 Example exm-regression-cars-multi
Multilinear regression for sales dataset πŸ’» 5 Example exm-regression-sales-multi
Polynomial regression for the MPG dataset πŸ’» 5 Example exm-regression-polynomial
Overfitting in polynomial regression πŸ’» 5 Example exm-regression-polynomial-high
LASSO regression for diabetes dataset πŸ’» 5 Example exm-regression-lasso-diabetes
Random forest for regression πŸ’» 5 Example exm-regression-tree-demo
Cross-entropy ✍️ 5 Example exm-regression-cross-entropy
Logistic regression as a spam filter πŸ’» 5 Example exm-regression-spam
Distance matrix ✍️ 6 Example exm-cluster-distmat-small
Usage of pairwise_distances πŸ’» 6 Example exm-cluster-distmat
Angular distance πŸ’» 6 Example exm-cluster-angular
Rand index by hand ✍️ 6 Example exm-cluster-rand
Adjusted Rand index πŸ’» 6 Example exm-cluster-ARI-blobs
Silhouette values ✍️ 6 Example exm-cluster-silhouette
Silhouette values calculation πŸ’» 6 Example exm-cluster-sil-blobs
Silhouettes as performance metric πŸ’» 6 Example exm-cluster-perform-digits
Limitation of silhouettes πŸ’» 6 Example exm-cluster-sil-bullseye
Inertia ✍️ 6 Example exm-cluster-inertia
k-means on blobs dataset πŸ’» 6 Example exm-cluster-kmeans-blobs
k-means on stripes dataset πŸ’» 6 Example exm-cluster-kmeans-stripes
k-means on digits dataset πŸ’» 6 Example exm-cluster-kmeans-digits
Comparing linkages on simple datasets πŸ’» 6 Example exm-cluster-linkage
Agglomerative for penguins dataset πŸ’» 6 Example exm-cluster-penguins
Constructing networks/graphs πŸ’» 7 Example exm-networks-construct
Importing networks πŸ’» 7 Example exm-networks-import
Neighbors of a node πŸ’» 7 Example exm-networks-neighbors
Ego graph πŸ’» 7 Example exm-networks-ego
Node degrees πŸ’» 7 Example exm-networks-degree
Average degree πŸ’» 7 Example exm-networks-avgdegree
ER graphs πŸ’» 7 Example exm-networks-degree-ER
Clustering coefficient ✍️ 7 Example exm-networks-cluster-small-world
Clustering in the Twitch network πŸ’» 7 Example exm-networks-cluster-twitch
Clustering in ER graphs πŸ’» 7 Example exm-networks-cluster-er
Distances in a complete graph ✍️ 7 Example exm-networks-distance-complete
Distances in a wheel graph πŸ’» 7 Example exm-networks-distance-wheel
Connectedness ✍️ 7 Example exm-networks-connected
Distances in ER graphs πŸ’» 7 Example exm-networks-distance-ER
Degree distribution in the Twitch network πŸ’» 7 Example exm-networks-ddist-twitch
Degree distribution in the Twitch network πŸ’» 7 Example exm-networks-ddist-ERWS
BarabΓ‘si–Albert graphs πŸ’» 7 Example exm-networks-BA
Power-law degrees in the Twitch network πŸ’» 7 Example exm-networks-powerlaw-ba
Betweenness centrality in the Twitch network πŸ’» 7 Example exm-networks-centrality-btw-big
Eigenvectors ✍️ 7 Example exm-networks-centrality-eigvector
Eigenvector centrality ✍️ 7 Example exm-networks-centrality-eig
Comparison of centrality metrics πŸ’» 7 Example exm-networks-centrality-smallworld
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