LabQuest
®
App
28
Manipulating Data from the Table Screen
From the Table menu, you can create, modify, or delete
columns of data. The following tools are available
from the Table menu:
New Manual Column
– New Manual Column creates
an empty column where you can enter or generate
values directly. You can add a manual column to a
data set that includes sensor data, or you can create
a new data set consisting entirely of manually
entered data.
New Calculated Column
– New Calculated Column
creates a new column with values that are based on
other columns by a mathematical formula. Tap the
Name field to enter a name for the new column, tap
the Units field to enter the units, and then select an
equation from the Equation Type list. For example,
you might define a calculated column as the inverse
square of another column. After creating a
calculated column, you can display the calculated
data on a graph, or manipulate it further with
additional calculated columns.
Data Column Options
– Use these options to access the fields for setting the column name,
units, and displayed precision. Alternatively, you can access these fields by tapping on the
column name from the Table screen.
Delete Data Column
– Use this to delete a manual or calculated column of data. Note that you
cannot delete data collected from a sensor; however, you can hide data using the
Strike
Through Data
tool.
Delete Run –
If you have stored at least one run using the
Store Run
tool, this option will be
available in the Table menu. Upon choosing Delete Run, tap the desired run name to delete
the run. You will not be able to delete the last data set created.
Clear All Data
– This action will clear all data in the table. Upon choosing this option, you
will be prompted to confirm. This option is used when you wish to clear previously collected
data without changing any of the data-collection parameters or sensor setup information.
Strike Through Data
and
Restore Data
– Use these tools to ignore/restore selected data. Struck
data are ignored for analysis and graphing, and the graph will update accordingly. To restore
all data, choose Restore Data from the Table menu. Note that you can also access these tools
from the Graph menu on the Graph screen.
Tag Data
– Use this tool to tag a data point with a comment. After selecting the data point
within the table, choose Tag Data from the Table menu. A circle will be displayed on the
Graph screen to “tag” the data. To add a comment, tap the Graph tab, then tap the info panel
to the right of the graph. A list of Data Tags will be displayed. Tap in the blank field to enter
a comment for the tag.
