systematic_sampler

Sample time-series data from JSONL files at specified intervals or counts.

541|171|Updated May 3, 2018
One-click install
npx skills add https://github.com/cas-bigdatalab/piflow --skill systematic-sampler
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: systematic_sampler
Source: https://github.com/cas-bigdatalab/piflow/tree/main/workspace/skills/systematic_sampler
Command: npx skills add https://github.com/cas-bigdatalab/piflow --skill systematic-sampler

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

This Skill addresses the challenge of evenly distributing samples from time series or ordered datasets, reducing manual efforts and increasing accuracy.

Core Features & Use Cases

  • Systematic Sampling: Extract samples at specified intervals from time-series data or ordered sets.
  • Interval/Count-based Sampling: Choose to sample at a set interval or based on a fixed count of samples.
  • Use Case: Ideal for data analysts who need to ensure a representative sample size from a large, ordered dataset, like financial trading data over a period.

Quick Start

Apply the 'systematic_sampler' skill to sample from your 'time_series_data.jsonl' file at an interval of 5 with a starting offset of 10.

Frequently Asked Questions about systematic_sampler

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I perform systematic sampling on time series data?

Systematic sampling on time series data extracts samples at fixed intervals or counts. This skill processes JSONL input, allowing you to specify a sampling interval and starting offset to pull a representative subset from ordered datasets.

Can I sample a fixed number of records from a JSONL dataset?

Yes, you can sample a fixed count of records from a JSONL dataset. This skill supports count-based sampling, extracting the exact number of samples you need while providing metadata about the sampling process.

What is the best way to evenly distribute samples from ordered datasets?

The best way to evenly distribute samples is interval sampling. This skill applies systematic sampling to your ordered data, ensuring samples are evenly spaced across the entire dataset to maintain representativeness without manual effort.

Does this data sampling tool work with financial trading data?

Yes, this data sampling tool works with financial trading data. It is designed for data scientists and analysts who need to extract precise, representative samples from large, ordered time-series datasets like financial trading records.

How do I set a starting offset when extracting samples from a time series?

You can set a starting offset when extracting samples by specifying the offset parameter. This shifts the initial point of your systematic sampling before the skill begins extracting data at your defined interval from the JSONL file.

Why use systematic sampling instead of random sampling for time series data?

Systematic sampling ensures samples are evenly distributed across the timeline, preventing clustering that can occur with random sampling. This approach maintains the chronological order and representativeness of your time series data.