data-analysis
304
matlab-ideal-sampling-recovery
指导在MATLAB中执行矩形脉冲信号的理想冲激抽样、频域分析、低通滤波及信号恢复，包含寻找频谱极小值fm及完整的可视化流程。
ECNU-ICALK
data-ai
sorting
stars
current ordering strategy
query
all entries
refine the visible subset
data-analysis
304
alternate-history-election-result-modifier
Modifies real-world (OTL) election result tables to fit a specific alternate history narrative by adjusting seat counts to accommodate a fictional party's performance.
ECNU-ICALK
data-ai
data-analysis
304
manual-variance-and-standard-deviation-calculation-in-python
Calculates population variance and standard deviation manually using NumPy by following a specific step-by-step workflow involving array conversion, deviation calculation, squaring, and summing.
ECNU-ICALK
data-ai
data-analysis
304
math-practice-game
Generates random math problems with 2 or 3 numbers and validates user answers by explicitly stating if they are correct or incorrect.
ECNU-ICALK
data-ai
data-analysis
304
matlab-numerical-methods-implementation
Implement MATLAB functions for numerical analysis, including curve fitting, regression, and integration, based on user-provided mathematical formulas and specific constraints.
ECNU-ICALK
data-ai
data-analysis
304
time-series-length-range-filtering
Refactor and execute Polars code to filter time series data by specific length thresholds or ranges, exclude specific IDs, and generate summary counts while ensuring temporal sorting.
ECNU-ICALK
data-ai
data-analysis
304
government-report-formatting-policy
A reusable policy for formatting government reports with standardized authorship, institutional, and temporal metadata fields.
ECNU-ICALK
data-ai
data-analysis
304
time-series-imputation-feasibility-analysis
Analyze the feasibility of imputing missing data for short time series by checking date alignment with similar series based on shared key columns using Polars.
ECNU-ICALK
data-ai
data-analysis
304
matlab-matrix-reshaping-and-peak-analysis
Transforms a single-column matrix into a multi-column matrix by splitting data into 24-row chunks, appends rows for average and max index, and calculates the most frequent max index.
ECNU-ICALK
data-ai
data-analysis
304
big-five-personality-combinations-table-generator
Generates a table of all 32 binary combinations of the Big Five personality traits (O, C, E, A, N), sorted by binary order, using +/- notation, and populated with fictional character examples and rationales.
ECNU-ICALK
data-ai
data-analysis
304
batch-unit-root-testing-in-r
Generate a reusable R script to perform ADF, PP, and DF-GLS unit root tests across multiple variables, transformations (level/first difference), and trend specifications, outputting test statistics and p-values in a single dataframe.
ECNU-ICALK
data-ai
data-analysis
304
time-series-feature-extraction-pipeline-for-polars-data
Aggregates raw sales data into a panel format using Polars, converts to Pandas, and extracts time series features using tsfeatures to analyze seasonality.
ECNU-ICALK
data-ai
data-analysis
304
text-based-excel-simulator
Simulates a text-based Excel interface, generating tables with row numbers and column letters, executing formulas, and outputting strictly the table text without explanations.
ECNU-ICALK
data-ai
data-analysis
304
matlab-heat-exchanger-optimization-visualization
Generates MATLAB code to visualize and analyze NSGA-II optimization results for plate-fin heat exchangers, including plotting objectives against design variables and performing sensitivity analysis at optimal conditions.
ECNU-ICALK
data-ai
data-analysis
304
real-estate-data-analysis-with-random-forest-and-visualization
Performs regression and classification analysis on housing data using Random Forest models, including data merging, preprocessing, and generating specific evaluation metrics and visualizations.
ECNU-ICALK
data-ai
data-analysis
304
risk-of-bias-assessment-using-newcastle-ottawa-scale
Conducts a risk of bias assessment for observational studies based on provided text segments, specifically utilizing the Newcastle-Ottawa Scale (NOS) framework.
ECNU-ICALK
data-ai
data-analysis
304
system-of-equations-word-problem-generator-and-solver
Generates a custom word problem scenario, models it with two equations in standard form, converts them to slope-intercept form, graphs them, and finds the solution, ensuring the values fit within a 0-10 range.
ECNU-ICALK
data-ai
data-analysis
304
matlab-sliding-window-fft-frequency-analysis
Generates MATLAB code to compute and plot the fundamental frequency of a signal over time using a sliding window Fourier transform (FFT), with configurable window size, step size, and frequency range constraints.
ECNU-ICALK
data-ai
data-analysis
304
nba-stats-comparison-with-top-3-ranking
Generate NBA statistical comparisons for teams or players, ensuring each metric lists the top 3 performers.
ECNU-ICALK
data-ai
data-analysis
304
excel-vba-dynamic-column-extraction-from-combobox-selection
Generates VBA code to extract unique, non-blank values from a specific column in a source sheet based on a ComboBox selection, outputting them vertically to a destination sheet.
ECNU-ICALK
data-ai
data-analysis
304
normal-distribution-calculator
Solves statistics problems involving normal distributions, including calculating areas under the curve, specific values from z-scores, and population counts within ranges, adhering to specific precision requirements.
ECNU-ICALK
data-ai