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Navigation

You can access the chart view via:
Navigation bar → Samples → Sample list → Results table → Click on parameter abbreviation

Alternatively, you can access the statistics directly from a specification.

Overview

The chart view enables:

• Display of measurement value trends across multiple samples as a line chart
• Analysis of correlations between two parameters as a correlation diagram
• Visualization of the frequency distribution of measured values as a histogram
• Display of statistical key figures (number of samples, min, max, mean, StDev.S, Sollwert Max/Min, C_p, C_pK)
• Display of specification limits as colored reference lines in the chart
• Configuration of up to four parameters simultaneously

The page is divided into four areas:

• the configuration panel (left, highlighted in yellow)
• the statistics tables (top right)
• the chart area (below)
• the sample table with samples and their values (below the chart area).

These areas are described below.

Configuration Panel

In the configuration panel, you select the parameters to be displayed and an optional specification.

1st–4th Parameter

Up to four parameters can be configured per chart. Two dropdown fields are available for each parameter:

• Parameter selection (first dropdown): Select the desired parameter from the grouped list.
• Column selection (second dropdown, configuration-dependent): If multiple columns are available for the selected parameter type, the first column appears automatically. Select a different column if required.

Note: The 2nd, 3rd and 4th parameter selections are optional. If no second parameter is selected, the correlation diagram and the second histogram tab are not available.

Specification

• Optionally select a specification from the dropdown to display the associated specification limits as reference lines in the chart.

Display

• Click the anzeigen button to load the chart with the selected settings.

Figure: Configuration panel

Statistics Tables

For each configured parameter, the statistical key figures are displayed in a tabular overview in the top right.

Chart Types

Depending on the parameter configuration, several chart types are available as tabs below the configuration panel.

Line Chart

The Chart tab displays the trend of measured values across all samples found as a line chart.

• Each configured parameter is displayed as its own line in its own color.
• With multiple parameters, separate Y-axes are displayed (left and right).
• Configured specification limits appear as colored dashed reference lines (e.g. red for tolerance limits, orange for action limits).
• The X-axis shows the sample numbers.
• The chart can be zoomed in the X and Y directions (click and drag).
• Hovering over a data point displays a tooltip with the sample number and measured value. The sample number is directly clickable and leads to the detail view of the respective sample.

Figure: Line chart

Correlation Diagram

The Correlation Diagram tab is available as soon as at least two parameters are selected. It displays the measured values of both parameters as a correlation diagram (scatter plot) with Pearson correlation and regression line.

• The X-axis shows the values of the 2nd parameter, the Y-axis shows the values of the 1st parameter.
• The Pearson correlation of the two parameters is displayed as a key figure above the chart.
• The regression line is displayed.
• Configured specification limits are displayed as dashed lines (vertical or horizontal).
• The tooltip shows the sample number, X-value and Y-value when hovering over a point. The sample number is clickable.

Figure: Correlation diagram

Histogram

A separate histogram tab is available for each selected parameter.

• The histogram shows the frequency distribution of the measured values as a bar chart.
• A dashed normal distribution curve (Gaussian curve) is displayed automatically.
• The Y-axis shows the absolute frequency, the X-axis shows the measured value.
• Configured specification limits are displayed as vertical dashed lines.

Figure: Histogram

Sample Table

A tabular overview of all samples found is displayed below the chart area.

Compiling Individual Statistics

You can compile statistics from the entire database in three steps.

Step 1: Filter samples

• Filter the desired samples using e.g. the advanced search in the sample management.

Step 2: Open results table

• Select all desired samples using the checkbox below the sample list.
• Select Ergebnistabelle and anzeigen.

Step 3: Open statistics

• Click on the blue highlighted parameter abbreviation in the column header of the results table to display the statistics for that parameter.