WINNETRIE / ENGINEERING TOOLS

Graph Studio.

Plot sensor data or mathematical functions, compare datasets, inspect statistics and export publication-ready graphics. Runs locally in your browser.

Start with a measurement

Enter measurements, draw a formula, or load a worked example. Editing and calculations are free; signing in is required to open or download files.

Graph settings

Give the graph a name and label the horizontal (X) and vertical (Y) axes. Leave advanced limits alone for automatic scaling.

Graph title

X-axis titleY-axis title

Chart typeAppearance

Advanced axis limits

X min (auto if blank)X max (auto if blank)Y min (auto if blank)Y max (auto if blank)

Show grid lines

Measured quantities (series)

A series is one column of Y values, such as collector current at a given base current. Use one series per measured curve.

Maximum 6 series. Rename, recolor or enter a formula for each series.

Formula generator

Optional: generate values from a formula instead of entering measurements. For example: 3*sin(2*pi*x).

Start XEnd X

Samples

Supports sin(x), cos(x), tan(x), sqrt(x), ln(x), log(x), exp(x), abs(x), min, max, pow, pi, e, and ^. Expressions are safely parsed, never executed as JavaScript.

Plot preview

Hover or tap points to read coordinates. Use axis ranges to zoom.

SVG RENDERER

PNG size

Measurement table

Put the X value in the first column (e.g. voltage), and the measured Y values in the next columns (e.g. current).

Worked example

Paste data from Excel or a lab sheet

Use tabs, commas, or semicolons. First row: X and series names; following rows: numbers. Example:
Voltage (V);Current (mA)
0;0
1;2.4

Measurement analysis

Minimum and maximum are the lowest and highest measurements. Mean is the average. Open the extra explanation if you need the engineering statistics.

What do RMS, standard deviation and slope mean?

RMS: effective magnitude of a signal. Standard deviation: how much the values vary. Slope: change of Y for one unit of X; intercept: predicted Y when X is zero. These estimates depend on your measurements.

Analyze series

Mean, min/max, RMS, population standard deviation, sample standard deviation and linear regression calculated from valid points in the selected series.

Help & account

Sign in to import measurements, export images, or save project files. You can still draw and edit graphs without an account.

Ready.

Tip: choose “BJT transistor curves” to see how multiple collector-current measurements appear on one chart.