Programmer Guide/Command Reference/EVAL/avr: Difference between revisions
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:::<code>''r''[''i''] = eval avr( ''x''[''i'',*]) // ''i'' = 0 .. nrow(''x'')-1</code> | :::<code>''r''[''i''] = eval avr( ''x''[''i'',*]) // ''i'' = 0 .. nrow(''x'')-1</code> | ||
---- | ---- | ||
;See also: [[Programmer_Guide/Command_Reference/EVAL/median|median]], [[Programmer_Guide/Command_Reference/EVAL/dev|dev]], [[Programmer_Guide/Command_Reference/EVAL/corr|corr]], [[Programmer_Guide/Command_Reference/EVAL/sum|sum]], [[Programmer_Guide/Command_Reference/EVAL/hist|hist]], | ;See also: [[Programmer_Guide/Command_Reference/EVAL/median|median]], [[Programmer_Guide/Command_Reference/EVAL/var|var]], [[Programmer_Guide/Command_Reference/EVAL/dev|dev]], [[Programmer_Guide/Command_Reference/EVAL/corr|corr]], [[Programmer_Guide/Command_Reference/EVAL/sum|sum]], [[Programmer_Guide/Command_Reference/EVAL/hist|hist]], | ||
[[Programmer_Guide/Command_Reference/EVAL#Functions|<function list>]] | [[Programmer_Guide/Command_Reference/EVAL#Functions|<function list>]] | ||
Revision as of 11:20, 4 April 2011
The arithmetic mean function is implemented in two versions.
- Usage 1
avr(x)- x
- a scalar, vector or matrix
- Result 1
- The result is the arithmetic mean of all elements of x
- Usage 2
avr(x, flag)- x
- a matrix
- flag
- selects if the average of the column vectors (flag==0) or the row vectors (flag!=0) is requsted; flag must be a scalar
- Result 2
-
- if flag equals 0: the result r is the vector of the column averages
r[i] = eval avr( x[*,i]) // i = 0 .. ncol(x)-1
- otherwise: the result r is the vector of the row averages
r[i] = eval avr( x[i,*]) // i = 0 .. nrow(x)-1
