TotalView Users Guide - CI Wiki

Examining and Analyzing Arrays
� Infinity Count
A count of the number of infinity values found in a floating-point array.
This includes both negative and positive infinity as defined in the IEEE
floating-point standard. These elements don’t participate in statistical
calculations.
� Lower Adjacent
This value provides an estimate of the lower limit of the distribution. Values
below this limit are called outliers. The lower adjacent value is the first
quartile value minus the value of 1.5 times the difference between the first
and third quartiles.
� Maximum
The largest array value.
� Mean
The average value of array elements.
� Median
The middle value. Half of the array’s values are less than the median, and
half are greater than the median.
� Minimum
The smallest array value.
� NaN Count
A count of the number of NaN (not a number) values found in a floatingpoint
array. This includes both signaling and quiet NaNs as defined in the
IEEE floating-point standard. These elements don’t participate in statistical
calculations.
� Quartiles, First and Third
Either the 25th or 75th percentile values. The first quartile value means
that 25% of the array’s values are less than this value and 75% are greater
than this value. In contrast, the third quartile value means that 75% of the
array’s values are less than this value and 25% are greater.
� Standard Deviation
The standard deviation for the array’s values.
� Sum
The sum of all the displayed array’s values.
� Upper Adjacent
This value provides an estimate of the upper limit of the distribution. Values
above this limit are called outliers. The upper adjacent value is the third
quartile value plus the value of 1.5 times the difference between the first
and third quartiles.
� Zero Count
The number of elements whose value is 0.
344 Chapter 15: Examining Arrays