standard deviation calculation can't figure out what a variable is
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Hey guys i was given the code to calculate a standard deviation in java netbeans. However I don't really understand how standard deviation works. What does the s represent in the code.
public static <T extends Number> double calculateStandardDeviation(ArrayList<T> numberList) {
if (numberList.size() <= 1) {
throw new IllegalArgumentException("Size of array must be greater than 1");
}
int numberListSize = numberList.size();
double s = 0;
double listAverage = calculateAverage(numberList,true);
for (int i = 0; i < numberListSize; i++) {
double numberDouble = numberList.get(i).doubleValue();
s += Math.pow(numberDouble - listAverage,2);
}
double standardDeviation = Math.sqrt(s / (numberListSize-1));
return standardDeviation;
}
Sorry if this problem is to simple for stack overflow.
java netbeans standard-deviation
asked Nov 10 at 19:12
Caleb
215
add a comment |
up vote
-3
down vote
favorite
Hey guys i was given the code to calculate a standard deviation in java netbeans. However I don't really understand how standard deviation works. What does the s represent in the code.
public static <T extends Number> double calculateStandardDeviation(ArrayList<T> numberList) {
if (numberList.size() <= 1) {
throw new IllegalArgumentException("Size of array must be greater than 1");
}
int numberListSize = numberList.size();
double s = 0;
double listAverage = calculateAverage(numberList,true);
for (int i = 0; i < numberListSize; i++) {
double numberDouble = numberList.get(i).doubleValue();
s += Math.pow(numberDouble - listAverage,2);
}
double standardDeviation = Math.sqrt(s / (numberListSize-1));
return standardDeviation;
}
Sorry if this problem is to simple for stack overflow.
java netbeans standard-deviation
asked Nov 10 at 19:12
Caleb
215
sis variance,sd = sqrt( s/ size - 1)
– The Scientific Method
Nov 10 at 19:16
thanks. I appreciate it
– Caleb
Nov 10 at 19:18
add a comment |
up vote
-3
down vote
favorite
up vote
-3
down vote
favorite
Hey guys i was given the code to calculate a standard deviation in java netbeans. However I don't really understand how standard deviation works. What does the s represent in the code.
public static <T extends Number> double calculateStandardDeviation(ArrayList<T> numberList) {
if (numberList.size() <= 1) {
throw new IllegalArgumentException("Size of array must be greater than 1");
}
int numberListSize = numberList.size();
double s = 0;
double listAverage = calculateAverage(numberList,true);
for (int i = 0; i < numberListSize; i++) {
double numberDouble = numberList.get(i).doubleValue();
s += Math.pow(numberDouble - listAverage,2);
}
double standardDeviation = Math.sqrt(s / (numberListSize-1));
return standardDeviation;
}
Sorry if this problem is to simple for stack overflow.
java netbeans standard-deviation
asked Nov 10 at 19:12
Caleb
215
Hey guys i was given the code to calculate a standard deviation in java netbeans. However I don't really understand how standard deviation works. What does the s represent in the code.
public static <T extends Number> double calculateStandardDeviation(ArrayList<T> numberList) {
if (numberList.size() <= 1) {
throw new IllegalArgumentException("Size of array must be greater than 1");
}
int numberListSize = numberList.size();
double s = 0;
double listAverage = calculateAverage(numberList,true);
for (int i = 0; i < numberListSize; i++) {
double numberDouble = numberList.get(i).doubleValue();
s += Math.pow(numberDouble - listAverage,2);
}
double standardDeviation = Math.sqrt(s / (numberListSize-1));
return standardDeviation;
}
Sorry if this problem is to simple for stack overflow.
java netbeans standard-deviation
java netbeans standard-deviation
asked Nov 10 at 19:12
Caleb
215
asked Nov 10 at 19:12
Caleb
215
asked Nov 10 at 19:12
Caleb
215
asked Nov 10 at 19:12
Caleb
215
asked Nov 10 at 19:12
Caleb
215
215
sis variance,sd = sqrt( s/ size - 1)
– The Scientific Method
Nov 10 at 19:16
thanks. I appreciate it
– Caleb
Nov 10 at 19:18
add a comment |
sis variance,sd = sqrt( s/ size - 1)
– The Scientific Method
Nov 10 at 19:16
thanks. I appreciate it
– Caleb
Nov 10 at 19:18
s is variance, sd = sqrt( s/ size - 1)– The Scientific Method
Nov 10 at 19:16
s is variance, sd = sqrt( s/ size - 1)– The Scientific Method
Nov 10 at 19:16
thanks. I appreciate it
– Caleb
Nov 10 at 19:18
thanks. I appreciate it
– Caleb
Nov 10 at 19:18
add a comment |
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sis variance,sd = sqrt( s/ size - 1)– The Scientific Method
Nov 10 at 19:16
thanks. I appreciate it
– Caleb
Nov 10 at 19:18