MagicPlot Manual

Plotting and nonlinear fitting software

User Tools

Site Tools


This is an old revision of the document!

Introducing MagicPlot 3.0 [NOT RELEASED YET]

This is a non-complete draft document. The features described are subject to change.

MagicPlot Pro and Student editions were merged into a single application

MagicPlot 3.0 provides the full-functional 30-days trial period without entering a license key. Some features will be disabled at the end of the trial period if the license key is not entered. This limited-features application may be used for non-commercial purposes as the 'Student' edition of the previous versions.

1. New good-looking cross-platform interface

MagicPlot 3.0 utilizes the new unified interface style on all supported operating systems. It is fully HiDPI/Retina display compatible.

2. New in formulas: Variables, comments, special functions and more

2.1. Setting variables in formulas

In MagicPlot 3.0 you can set variables in formulas: write an assignment and a semicolon to separate it from the next part of the formula, for example: a=5; a*a + 2*a + 1. The last expression (after the last semicolon) is the result of the formula and cannot contain an assignment. MagicPlot highlights all usages of the variable at cursor in the edited formula.

The variables can be used in Column Formula, Custom Fit Curve equation and in any other formula fields in MagicPlot.

Tip: Inserting fit equation to the column formula

You can copy the fit equation with variables from the Report tab of a Fit Plot and paste it in any formula field including Column Formula (but it is generally better to use new Add to Table feature which generates a link instead of copying formula, see below):

2.2. Comments in formulas

You can insert comments in any formula using /*…*/ notation:

Press Ctrl+/ on Windows/Linux or Cmd-/ on Mac OS to comment selection. Comments can be multi-line. Note that the single line comments using a symbol at the line start are not supported because line breaks are not taken into account in MagicPlot formula syntax.

2.3. Bessel, Erf, Gamma, Beta special functions added

The special functions listed below are now available in formulas. MagicPlot special function implementation is based on the well-known Colt 1.2 scientific open-source library.

Bessel functions
besselj(n, x) Bessel function of the first kind of integer order n
bessely(n, x) Bessel function of the second kind of integer order n
besseli(n, x) Modified Bessel function of the first kind of order n = 0, 1
besselie(n, x) Exponentially scaled modified Bessel function of the first kind of order n = 0, 1
besselk(n, x) Modified Bessel function of the second kind of integer order n
besselke(n, x) Exponentially scaled modified Bessel function of the second kind of order n = 0, 1
Error function
erf(x) Error function
erfc(x) Complementary error function, 1 - erf(x)
Gamma function
gamma(x) Gamma function
gammainc(a, x) Regularized lower incomplete gamma function.
x — the integration end point, a — the parameter of the gamma distribution
gammaincc(a, x) Regularized upper incomplete gamma function.
x — the integration start point, a — the parameter of the gamma distribution
gammaln(x) Logarithm of the absolute value of the gamma function
Beta function
beta(a, b) Beta function. The values of a and b must be nonnegative
betainc(x, a, b) Incomplete beta function.
a, b — parameters of the beta function, must be nonnegative,
x — the integration end point, must be in the closed interval [0, 1]

2.4. Miscellaneous functions added

Reciprocal trigonometric functions
csc(x) Cosecant of an angle measured in radians, csc(x) = 1/sin(x)
sec(x) Secant of an angle measured in radians, sec(x) = 1/cos(x)
ctg(x) Cotangent of an angle measured in radians, ctg(x) = 1/tan(x)
xor(a, b) Logical exclusive-OR operation
rem(x, y) Computes the remainder of the division operation x/y, same as x % y. Added for compatibility

2.5. Improvements in Boolean operations

The Boolean meaning of numbers in C language style

MagicPlot uses ordinary floating-point numbers to store Boolean true/false values. All Boolean operators and functions return 1 for true and 0 for false. However the if() function can accept any number as a condition, not 1 and 0 only. In the old MagicPlot 2.x versions the condition value is interpreted as false if the value is less or equal to zero. In MagicPlot 3.0 only zero value is interpreted as false. This change was made to synchronize specification with C-like languages. The change will only be notable if you manually used some calculated numbers as Boolean condition in a non-standard way.

App version The result of if(condition, if_true, if_false)
MagicPlot 3.0 and later If condition != 0 returns if_true value. Returns if_false value otherwize.
MagicPlot 2.9.3 and earlier If condition > 0 returns if_true value. Returns if_false value otherwize.

Negation operator (!) and exclusive or operator added

  • New negation operator example: f = $A > 0; if (!f, $A, $B).
  • xor(a, b) returns the Boolean exclusive or operation result for operands.

2.6. Undo/Redo in Formula Editor

MagicPlot now supports Undo and Redo in formula editor using Ctrl+Z / Cmd-Z (Undo) and Ctrl+Shift+Z / Cmd-Shift-Z or Ctrl+Y / Cmd-Y (Redo) shortcuts.

3. Improvements in Tables

3.1. Simplified column formula notation: '$A' instead of 'col(A)'

We have simplified Column Formula syntax: column and cell values can be inserted using $A and $A$1 instead of col(A) and cell(A, 1). The old notation also works.

The new notation only works with constant column/cell indexes. Use col and cell functions if you need to vary the index, ex. col(i) and cell(i-1, j+1).

3.2. Setting a common Formula for Multiple Columns

The same formula can be set for multiple selected columns. You can use this feature to compute matrices. The i and j variables are the current row and column indexes.

3.3. Calculation in Reverse Row Order

You can swap from and to row indexes to reverse the calculation order. This can be useful if the cell formula contains the value of the previously calculated cell in the same column.

3.4. Optimized Table Scrolling and Redrawing

We have optimized the program code of the redrawing of the Table to eliminate lags when scrolling and editing a Table with hundreds of thousands of columns.

4. Improved Fit Results Management

4.1. Adding Fit Sum and Fit Curve Column to the Table

You can now add a column with Fit Sum or other alternatives to the Table which contains Fit Plot data using Fit Report tab. The alternatives are: Fit Sum, Baseline, Y with baseline corrected, Residual:

Column(s) from the selected curve(s) (including Fit Sum) can be added to the Table using the context menu of the Curve itself in the plot area or in the curves list or from the context menu of the legend symbol:

The new columns are added to the Table where Y column of the Fit Plot data is located:

The created columns have links to the Fit Plot. The Auto Recalculation is on by default for the created columns and can be switched off.

4.2. 'Data-Baseline' column is not automatically created

Staring MagicPlot 3.0 The 'Data-Baseline' column is no more added to the Table when creating a Fit Plot. The 'Data-Baseline' column contained the Y values from the Fit Plot with the baseline curves subtracted – the Y values that are actually plotted. This feature was introduced in the early MagicPlot version and it has proved to be rarely used.

The 'Data-Baseline' auto-recalculated columns in old projects will be preserved when opening in MagicPlot 3.0 for backward compatibility. In MagicPlot 3.0 you can delete these columns manually.

The analog of the 'Data-Baseline' column can be created in MagicPlot 3.0 using the 'Fit Report' tab of a Fit Plot. Choose Y with baseline corrected in the drop-down list and click Add to Table button:

6. Miscellaneous Improvements

Descriptive Statistics on Rows

The statistics on table rows can now be calculated using Descriptive Statistics dialog. The Columns/Rows switch was added:

Other Changes

  • The keyboard shortcut for Undo History was changed to Ctrl+Shift+H / Shift-Cmd-H.
  • A new shortcut for creating a Folder was added: Ctrl+Shift+N / Shift-Cmd-N.
  • The calculator (menu 'Tools') now uses the default formula syntax and does not support comma as decimal separator.
  • 0000567: [Other] Adding table curve to multiple selected figures when copy-pasting table
  • 0000256: [Processing] Add empty cell (NaN) check function in column formula syntax
  • 0000565: [Plots] Allow zero values for 1) Width of caps of error bars 2) Marker edge width 3) Marker size
  • 0000599: [Plots] Add vertical and horizontal dash line as markers
  • 0000584: [Other] Java 6 inspired bug: round(0.49999999999999994) = 1
  • Bugs Fixed

Appendix 1: Features available in licensed version only

The features listed below are available in MagicPlot after entering the license key and during the 30-days trial period.

  • Custom fit equations
  • Fit parameters joining
  • Guessing peaks
  • Adding fit curves to the table
  • Batch processing
  • Data processing (smoothing, FFT, etc.)
  • Table transposing and sorting
  • Color map plots
  • Vector image export, copying vector/raster image, printing
  • Drawing on plots, dimensions tool
  • Multiple axes boxes on figures
  • Figure style templates applying
  • Waterfall plots
  • Quick plot tool

Appendix 2: Java Runtime Requirement

For running MagicPlot 3.0 on Linux-like OS the minimum version of Java Runtime is 11.0.

This website uses cookies. By using the website, you agree with storing cookies on your computer. Also you acknowledge that you have read and understand our Privacy Policy. If you do not agree leave the website.More information about cookies
release/3.0.1610381205.txt.gz · Last modified: Mon Jan 11 19:06:45 2021 by Alexander