Arrangement:

Select how to arrange multiple trend lines.

• Overlay displays all trend lines in a single chart. The y-axis on the left side of the chart displays the data range for the selected trend line in the units appropriate for the selected line. Control lines displayed on the chart are those associated with the selected trend line.

• Stacked displays separate trend line plots, stacked vertically. Each plot has a separate y-axis and shares the x-axis.

• Mixed displays the trend lines overlaid if their y-axes have the same units and stacked if they have different units. For example, if there are two trend lines showing retention time (y-axis units= min) and one showing amount (e.g., y-axis units=µS*min), the two retention time trend lines are overlaid and the amount line is stacked on a separate plot.

Display

Select how to display the trend data: Lines & Points, Lines only, or Points only.

Sort Dataset By

Specify whether the dataset (i.e., the retrieved trend data) is sorted by Injection Time or Sample Number.

Normalize Trend Lines

Select the check box to plot each overlaid plot using its own scale and in full-scale mode. Select this option to compare trends that have different data types and/or scale ranges.

If the check box is cleared, all overlaid plots use the same scale as the current (selected) plot. If the data type of an unselected plot is different from the current plot or if its scale is outside the range of the current plot, it is not displayed. Select this option to compare trends that have similar ranges.

Restrict Dataset To

Determine which samples are included in the dataset by selecting the corresponding check box(es). The options are: Standards, Unknowns, Validation Samples, Blank Runs, Matrix Blanks, Spiked, and Unspiked.

And

Use this option to select a property for restricting the datasets. The variables from the Sample category or from User-defined Columns are available for this. Select an operator from the center field list box, and enter the comparative value or text in the right field. The following operators are available:

Operator

Searches all samples…

< >

whose property is not identical to the specified character string.

>

whose property is larger than the specified character string.

<

whose property is smaller than the specified character string.

>=

whose property is larger than or equal to the specified character string.

<=

whose property is smaller than or equal to the specified character string.

contains:

whose property contains the specified character string.

contains not:

whose property does not contain the specified character string.

starts with:

whose property starts with the specified character string.

does not start with:

whose property does not start with the specified character string.

ends with:

whose property ends with the specified character string.

does not end with:

whose property does not end with the specified character string.

is like:

fulfills the specified wildcard condition.

is not like:

whose property does not fulfill the specified wildcard condition.

is between:

whose property is between two values.

is not between:

whose property is not between two values.

during the previous:

whose property was created during a specified time before the query.

is null

in which the variable does not exist.

is not null

in which the variable exists.

If the operators >, <, >=, or <= are used for text variables, the alphabetical order is considered; for example: A<B.

For example, select the Sample Name variable, select starts with as the operator, and enter "anion" in the edit box. As a result, only sample names that start with "anion" will be included in the dataset.

 Tip:  

You can also enter a formula as the comparative value. For example, you can enter = {smp.sampleID} to display all samples whose sample ID is identical to the ID of the current sample.