Data Science and Machine Learning Free Recipes

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How to visualise regression analysis in R?
How to convert string categorical variables into numerical variables using Label Encoder?
How to split train test data using sklearn and python?
How to select features using chi squared in Python?
How to select features using best ANOVA F values in Python?
How to save and reload a deep learning model in Pytorch?
How to run a basic RNN model using Pytorch?
How to use auto encoder for unsupervised learning models?
How to find correlations among feature variables in R?
How to Create a Vector or Matrix in Python?
How to Create and Delete a file in Python?
How to create and optimize a baseline ElasticNet Regression model?
How to create and optimize a baseline Lasso Regression model?
How to create and optimize a baseline Ridge Regression model?
How to create and optimize a baseline linear regression model?
How to optimize hyper parameters of a DecisionTree model using Grid Search in Python?
How to optimize hyper parameters of a Logistic Regression model using Grid Search in Python?
How to select model using Grid Search in Python?
How to tune Hyper parameters using Random Search in Python?
How to tune Hyper parameters using Grid Search in Python?
How to plot Validation Curve in Python?
How to plot a ROC Curve in Python?
How to plot a learning Curve in Python?
How to generate classification report and confusion matrix in Python?
How to check models Average precision score using cross validation in Python?
How to check models AUC score using cross validation in Python?
How to check models recall score using cross validation in Python?
How to check models precision score using cross validation in Python?
How to check models f1 score using cross validation in Python?
How to check models accuracy using cross validation in Python?
How to do variance thresholding in Python for feature selection?
How to do recursive feature elimination in Python?
How to drop out highly correlated features in Python?
How to extract features using PCA in Python?
How to reduce dimentionality using PCA in Python?
How to reduce dimentionality on Sparse Matrix in Python?
How to determine Spearmans correlation in Python?
How to determine Pearsons correlation in Python?
How to generate stacked BAR plot in Python?
How to generate PIE plot in Python?
How to generate grouped BAR plot in Python?
How to generate scatter plot using Pandas and Seaborn?
How to generate timeseries using Pandas and Seaborn?
How to utilise timeseries in pandas?
How to generate BAR plot using pandas DataFrame?
How to use seaborn to visualise a Pandas dataframe?
How to utilise Pandas dataframe & series for data wrangling?
How to sort rows within a Pandas DataFrame?
How to do string munging in Pandas?
How to select rows with multiple filters?
How to search a value within a Pandas DataFrame row?
How to search a value within a Pandas DataFrame column?
How to save Pandas DataFrame as CSV file?
How to replace multiple values in a Pandas DataFrame?
How to rename multiple column headers in a Pandas DataFrame?
How to rename column header of a Pandas DataFrame?
How to reindex Pandas Series and DataFrames?
How to rank a Pandas DataFrame?
How to randomly sample a Pandas DataFrame?
How to format string in a Pandas DataFrame Column?
How to create Pivot table using a Pandas DataFrame?
How to Normalise a Pandas DataFrame Column?
How to calculate MOVING AVG in a Pandas DataFrame?
How to deal with missing values in a Pandas DataFrame?
How to map values in a Pandas DataFrame?
How to list unique values in a Pandas DataFrame?
How to JOIN and MERGE Pandas DataFrame?
How to present Hierarchical Data in Pandas?
How to group rows in a Pandas DataFrame?
How to find the largest value in a Pandas DataFrame?
How to filter in a Pandas DataFrame?
How to drop ROW and COLUMN in a Pandas DataFrame?
How to get descriptive statistics of a Pandas DataFrame?
How to delete duplicates from a Pandas DataFrame?
How to create crosstabs from a Dictionary in Python?
How to create a new column based on a condition in Python?
How to insert a new column based on condition in Python?
How to convert string variables into DateTime variables in Python?
How to convert string categorical variables into numerical variables in Python?
How to convert categorical variables into numerical variables in Python?
How to preprocess string data within a Pandas DataFrame?
How to apply arithmatic operations on a Pandas DataFrame?
How to assign a new column in a Pandas DataFrame?
How to do Data Analysis in a Pandas DataFrame?
How to apply functions in a Group in a Pandas DataFrame?
How to deal with an Item in a List in Python?
How to convert Strings to DateTimes in Python?
How to select DateTime within a range in Python?
How to deal with Rolling Time Window in Python?
How to introduce LAG time in Python?
How to deal with missing values in a Timeseries in Python?
How to encode Days of a week in Python?
How to calculate difference between Dates in Python?
How to split DateTime Data to create multiple feature in Python?
How to standardise IRIS Data in Python?
How to standardise features in Python?
How to rescale features in Python?
How to process categorical features in Python?
One hot Encoding with nominal categorical features in Python?
One hot Encoding with multiple labels in Python?
How to impute missing values with means in Python?
How to deal with outliers in Python?
How to deal with imbalance classes with upsampling in Python?
How to deal with imbalance classes with downsampling in Python?
How to encode ordinal categorical features in Python?
How to find outliers in Python?
How to delete instances with missing values in Python?
How to impute missing class labels using nearest neighbours in Python?
How to impute missing class labels in Python?
How to convert Categorical features to Numerical Features in Python?
How to prepare a machine learning workflow in Python?
How to Create simulated data for clustering in Python?
How to Create simulated data for classification in Python?
How to Create simulated data for regression in Python?
How to load sklearn Boston Housing data?
How to load features from a Dictionary in python?
How to add and subtract between matrices?
How to Divide each element of a matrix by a numerical value?
How to MULTIPLY numerical value to each element of a matrix?
How to SUBTRACT numerical value to each element of a matrix?
How to ADD numerical value to each element of a matrix?
How to calculate dot product of two vectors?
How to find Maximum and Minimum values in a Matrix?
How to find the Rank of a Matrix?
How to create RANDOM Numbers in Python?
How to define WHILE Loop in Python?
How to define FOR Loop in Python?
How to deal with Dictionary Basics in Python?
How to convert STRING to DateTime in Python?
How to use CONTINUE and BREAK statement within a loop in Python?
How to do numerical operations in Python using Numpy?
How to Flatten a Matrix?
How to Calculate Determinant of a Matrix or ndArray?
How to calculate Diagonal of a Matrix?
How to Calculate Trace of a Matrix?
How to invert a matrix or nArray in Python?
How to convert a dictionary to a matrix or nArray in Python?
How to reshape a Numpy array in Python?
How to select elements from Numpy array in Python?
How to create a sparse Matrix in Python?
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