Line Graph Maker — Continuous Time-Series & Velocity Plotter
A line graph connects sequential ordered data points $(t_i, y_i)$ with straight segments whose local slope ($m_i = \Delta y_i / \Delta t_i$) directly encodes rate of change over time.
Tip: Paste Excel or Google Sheets rows (Ctrl+V / ⌘V) directly into any cell.
| # | Label | ||
|---|---|---|---|
| 1 | |||
| 2 | |||
| 3 | |||
| 4 | |||
| 5 | |||
| 6 | |||
| 7 | |||
| 8 |
End-to-end percentage change: Delta% = ((y_n - y_1) / |y_1|) * 100%. Compound period growth rate: CAGR = (y_n / y_1)^(1 / (n - 1)) - 1.
Chart Design & Use-Case Tips
- 01End-to-end percentage change: Delta% = ((y_n - y_1) / |y_1|) * 100%. Compound period growth rate: CAGR = (y_n / y_1)^(1 / (n - 1)) - 1.
- 02Ensure x-axis intervals are equally spaced in time (e.g., daily, weekly, monthly, or quarterly) so line slopes faithfully represent acceleration or deceleration.
- 03Check the Delta % / CAGR metric in the statistics bar to see total end-to-end period growth and compound rate.
- 04Keep vertex markers visible when your dataset has 6 to 15 observations so readers can distinguish measured data points from interpolated segments.
Frequently Asked Questions
Do line graphs have to start at zero on the y-axis?+
Unlike bar charts, line graphs encode position and slope rather than solid column area, though starting near zero or using consistent grid bounds prevents misreading volatility.
How do I plot multiple lines on the same chart?+
Use the Multi-Line Graph Maker to plot 2 or 3 simultaneous time series on a shared coordinate grid.
Can I copy my edited time-series table back to CSV?+
Yes, click the 'Copy CSV Data' button at any time to copy your current labels and series values to your clipboard in standard CSV format.