data-science Examples and Free Source Code

Remove rows in a 2d-numpy array if they contain a specific element...

python arrays numpy matrix data-science

How to fix function with for loop not iterating. Recommendation system in Python...

python pandas machine-learning data-science recommendation-engine

How to use fancyimpute on PyCharm...

python anaconda data-science jetbrains-ide

Extracting City and State from a column in CSV using python...

python pandas csv data-science

How to create non-alphabetically ordered Categorical column in Polars Dataframe?...

python dataframe data-science python-polars categorical-data

pandas calculate delta time...

python pandas data-science

Color Prediction System with OpenCv Python...

python opencv data-science knn

Pandas Compare two data frames and look for duplicate elements...

python pandas data-science equality

How can I split a Dataset from a .csv file for Training and Testing? TypeError: 'list' objec...

python csv split data-science typeerror

Counting events between sequential stages in a process using R...

r algorithm count data-science data-wrangling

How to achieve regression model without underfitting or overfitting...

python machine-learning data-science

In "statsmodels" Python library, why does z-test not require Population standard deviation...

python statistics data-science statsmodels

sklearn StandardScaler, doesn't allow direct transform, we need to fit_transform...

python-3.x machine-learning scikit-learn data-science

Retrieve final hidden activation layer output from sklearn's MLPClassifier...

python machine-learning scikit-learn classification data-science

"blue is not a valid ColorBrewer code" Error while creating Choropleth using Folium (Pytho...

python data-visualization data-science folium

R - select only factor columns of dataframe...

r dataframe data-science data-cleaning

Python: finding outliers from a trend of data...

python matplotlib regression data-science outliers

How do I do a specific aggregation on a table based on row column values on another table (SQL)?...

python sql data-science duckdb data-engineering

How to get all the rows corresponding to maximum values of a column using groupby...

python pandas dataframe data-science

How to set a fixed random state in RandomizedSearchCV?...

python scikit-learn data-science

When to use random forest...

python regression data-science random-forest

Optuna LightGBM LightGBMPruningCallback...

python python-3.x data-science lightgbm optuna

Check if any value in a Polars DataFrame is True...

python dataframe data-science python-polars

in KDB q, how do you write a custom mavg that drops the top 5 and bottom 5 results before doing movi...

data-science kdb+q moving-average

With kotlin-notebook, how do I use DataFrame.readCsv to parse a column of dates formatted mm/dd/yyyy...

kotlin csv data-science kotlin-notebook kotlin-dataframe

How to convert rows to columns in a Pandas groupby?...

python pandas database dataframe data-science

Fastest way to eliminate specific dates from pandas dataframe...

python datetime pandas indexing data-science

How do I show small numbers with scientific notation in Pandas Dataframe Python?...

python pandas dataframe data-science

How can I download a kaggle dataset on my Colab notebook?...

dataset data-science

How to use WKT to draw polygon in qgis?...

gis data-science qgis