Tools

Click the button   or select menu item <Analysis><Transformation> to create new series. Select tool:

• Copy to exchange (X, Y), to exchange (Y, Z), transpose (X, Y) to (row number, X) or to (row number, Y), flip X or flip Y values, simulate data (Y values) with random error;
• Linear to translate, scale, rotate data;
• Subtract to subtract or divide data on const, or baseline, or function you input;
• Formula to transform points;
• Normalize to normalize data between Y limits you define; 
• Prune to skip or to combine rows (take the arithmetic mean or the harmonic mean or the geometric mean) and or exclude data out of limits X;
• Spikes to exclude random spikes or to exclude close points;
• Neighbours to exclude replicating points, or to exclude points near existing plot, or to exclude points near function.
• Smooth to apply adjacent averaging;
• Interpolate to generate a new curve with a constant spacing on the X axis;
• Differentiate to calculate derivatives;
• Integrate to calculate integrals.
• Convex Hull to construct a discrete Convex Hull as a new series;
• Filter to eliminate noise with FFT filters;

In all dialogs you can modify properties of new series (formulas, parameters, color, radius and so on).

Formula

It is possible to transform selected points ( u, v ) and create new series of points ( x, y ) in the form
y( u, v ) = f2(u, v), x( u, v ) = f1(u, v). You can use parameters a, b, c, d in formula: Const; Medium values of x and y; Any Function or the Formula you created.

Notes:

• Only variables u, v and parameters a, b, c, d are possible in formula expression.
• Default value of parameters is 0.

The set of operations and functions.

See example how to transform points.