Cirrus-logic CDB5490U Uživatelský manuál stáhnout pdf (Strana 32)

CDB5490U

32 DS923DB5

2.8.1.11 Histogram Information

The following is a description of the indicators associated with histogram analysis. Histograms can be plot-

ted in the Data Collection Window by setting the analysis type pull-down menu to Histogram (see

Figure 26). The histogram plot information includes:

• BIN: Displays the x-axis value of the cursor on the histogram.

• MAGNITUDE: Displays the y-axis value of the cursor on the histogram.

• MEAN: Indicates the mean of the data sample set. The mean is calculated using the following

formula:

• STD_DEV: Indicates the standard deviation of the collected data set. The standard deviation is

calculated using the following formula:

• VARIANCE: Indicates the variance of the current data set. The variance is calculated using the

following formula:

• MAXIMUM: Indicates the maximum value of the collected data set.

• MINIMUM: Indicates the minimum value of the collected data set.

MEAN

i0=

n1–



---------------------------

STDDEV

Mean–

i0=

n1–



------------------------------------------------------

VARIANCE

Mean–

i0=

n1–



------------------------------------------------------

Figure 26. Histogram Analysis

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 45 46

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Cirrus-logic CDB5490U Uživatelský manuál Strana 32