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Chapter 2 Working with DaqLab
2.6.5. Statistics
Use the statistics tool to display statistics of a selected data set or a range of data.
The statistics include:
Average
–
The average of all the numbers in the range
StDev
.
–
The standard deviation
Minimum
–
The smallest value in the range
Maximum
–
The largest value in the range
Sum
–
Adds all the numbers in the range
Area
–
The area between the graph and the x-axis in the range
Samples
–
The number of data points in the range
Rate
–
The recording rate
To display statistics:
1. Use the cursors to select the graph and the data range to which you want to apply the statistics
2. Click
Analysis
on the menu bar, then click
Statistics.
DaqLab will open a statistics window in which it will display the results.
2.6.6.
Most Common Analysis Functions
1. Linear Fit
Click
Linear Fit
on the main toolbar to draw a line of linear least square fit
and to display the line
’
s equation
y = ax + b
Note
: If you want the automatic curve fit equation to start at
t = 0
, apply the crop tool before applying the
linear fit (refer to page 78).
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