SuperImposed View

The Superimposed View module, available from the Action menu, allows you to superimpose (stack) data from different files, channels, classes, sweeps, etc. into the same graph.

• Add a Plot
• Add Multiple Plots
• Math
• Cursor Related Analysis
• Clear Some or All Plots
• Printing & Save Image
• Exit

Note: You can add as many plots as you like, but only the first 16 are available for analysis. Plot no 17 and above may be displayed in inconvenient colors or even invisible! - Also plot no 17 and above will not be labeled properly.

Add a Plot

You can add plots of any data already loaded (or acquired) into Mr. Kick:

• The sweep actually displayed - raw or pre-processed
• Any class average, whether actually displayed or not

Click the Add Plot button or hit the Page Down key and you will be able to specify what you want to add:

• Processing: Choose from the actually displayed Raw or PreProcessed Sweep or a class average, Averaged Sweeps
• Channel: One channel can be added, select which
• Class: If processing is set to Averaged Sweeps, choose which class to add
• Plot Label: Choose an appropriate label to identify the plot. Only a short label will be fully displayed in the Superimposed View
• Color: Plot color.

Data may be modified before thay are added:

• Gain: The original data can be boosted by any gain factor. Would you like to compare EMG in the 10 µV range with torque in the 10 Nm range - set the Gain factor to 1.00E+6 for the EMG plot, and the two plots will display in the same y-range.
• Offset: The original data may be shifted in the y-direction, eg. to align baselines of two different signals. Gain is applied before Offset.
• Time Shift, s: The original data may be shifted in the x-direction (time), e.g. to align stimuli given at different delays.

The plot label of modified data is prefixed by an asterix, '*', referring to the "Scale Changed" below the legend. Note: Modified data does not display correctly relative to the x- and/or y-axis of the graph; also analysis is affected by modifications!

Add Multiple Plots

You may also add mutiple plots:

• Add all sweeps in a certain class - raw or pre-processed
• Add all class averages

Use the Add All...-button to access this feature:

• Plots to Add: Choose which type -
• Raw, label will be Rw n, where n is the sweep no.
• Pre-processed, label will be Pp n.
• Averaged, label will be Av m.s, where m.s is the class id (main.sub).
• Channel: One channel can be added, select which.
• Clear First: Allows you to clear all previously added plots before adding new ones.
• Only Incl: When adding raw or pre-processed sweeps, choose wether to add only included sweeps or all sweeps.
• Data File: Displays the name of the actual datafile (for information only).
• Offset/Plot: Adds an offset to each plot (see note below) - first plot is not offset, second plot is offset by 1x the specified amount, third plot is offset by 2x the amount, etc.; if zero no offset is applied.
• Classes: May be either Main, sub or Both -
• Main - Sweeps or averages in a certain main class is added, regardless of the sub class;
• Sub - Sweeps or averages in a certain sub class is added, regardless of the main class;
• Both - Sweeps in a certain class is added, both main and sub class are taken into account. If adding averages, all classes will be added.
• Class:Choose the class to add sweeps or averages from.
• Progress and Sweep Count: Displays the progress while plots are generated.

The plot label of offset data is prefixed by an asterix, '*'.
Note: Offset data does not display correctly relative to the y-axis of the graph; also analysis is affected by the offset!

Math

The Math button is your way to applying some simple mathematical functions to existing plots:

• Add any two plots.
• Subtract any two plots; Second Plot will be subtracted from the First Plot.
• Multiply any two plots.
• Divide any two plots; First Plot will be divided by the Second Plot.
• CrossCorr between any two plots: Calculates the cross correlation between the two data set. Center half of sequence is displayed.

The result will be displayed as another plot.

Choose which two plots to use, choose the Math Action to apply, then Label and color the new plot properly and click OK - Add Plot. The two plots may actually be one and the same, eg. if you want to square all samples in one plot, choose that plot as both first and second and multiply them.

Math can only be applied to plots that overlap (in the x-direction). Only the overlaping section will be included in the calculations.

The two plots, which the math is applied to, may not be 'alligned', e.g. not sampled at the same rate or shifted in time so that samples are not aligned. If this is the case then the Second Plot is interpolated to match the First Plot.

Cursor Related Analysis

Just as in the main display panel you can analyse the displayed data by use of the cursors: One plot can be analysed at a time - select which plot via the vertical slider between the graph and its legend (blue knob). Cursors will lock to the selected plot.

You select which set of analysis methods to appy via the Analysis selector above the graph (right side). Learn more about cursor related analysis here.

Note: Analysis is applied to the plotted data, which may be modified (*-marked or math generated) - not the original data: E.g. if a gain factor of two was applied when the plot was added to the graph, then amplitude values will be displayed a factor of two too high!

Clear Some or All Plots

You can clear all existing plots by pressing the Clear All button. A warning will appear if any plots exist.

You may also clear individual plots: Click the Clear Some button and choose from the list of existing plots. Plots are identified by the Labels given to them when added - plots are listed in the order they were added. Hold down the Shift button on the keyboard to select more than one plot. When ready click the Clear Selected button.

Printing & Save Image

The SuperImposed View module supports printing of the window: Via the Printing menu you can access Page Setup and Print Window features.

You can also save an image of the Window to a graphics file - simply press the Save Image button (lower right). The file format will be PNG, Portable Network Graphics.
For more information on PNG, see: W3C's introduction or the official homepage of PNG.

Exit

Click the STOP button to terminate the Superimposed View module. All plots will be cleared - a warning will appear if any exist!