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Draw gridlines at the average (or median) values of a range in d3.js


You'll want to calculate the mean and median based on your data, instead of your scale:

ymean = d3.mean(inputData, function(d)
{ return d.xVal; }); 
xmean = d3.mean(inputData, function(d) { return
d.yVal; }); 

These are generic accessor functions, if you need specific guidance on the accessor function (the function(d) { return d.xVal; } part), you'll need to provide the format of your input dataset


Categories : Javascript

Related to : Draw gridlines at the average (or median) values of a range in d3.js
cannot convert ‘char*’ to ‘int*’ for argument ‘1’ to ‘int median(int*, int)’ array2 = median(array,size);
in the header int median(int array[],int size); in the .cpp file int median(char array[], int size) your main is trying to invoke the first one (its the only one it knows about)

Categories : C++
Need Average of Col 1 between two date range and update Col 2 from same table
It is recommended to store the average value as decimal instead of varchar , as % can be added in presentation layer. Here is the query that does the calculation, substring and cast was needed as average column is varchar. EDIT: removed substring logic, as they are float columns, as per OP comments. update myTable set [col 2] = T.avgValue from ( select avg( [col 1] ) as avgValue from mytable w

Categories : Sql Server
SSRS rolling up average values
You could change the scope of your second SUM() function to reference those values or a different group. Here's a good article from MSDN: http://msdn.microsoft.com/en-us/library/dd255256(v=sql.105).aspx

Categories : Reporting Services
SQL query to get average values over a list of time ranges
case based aggregation is one way to do this in single query. SELECT AVG(case when dateColumn > startRange1 && dateColumn < endRange1 then column1 end) as range1Avg, AVG(case when dateColumn > startRange2 && dateColumn < endRange2 then column1 end) as range2Avg FROM Table1

Categories : SQL
Find average of dynamic arraylist with decimal and integer values java
How to find average: Add up all elements in the Arraylist divide by the ArrayList's size How to find median: Use Collections.sort() on the ArrayList to sort it get the element at the middle of the ArrayList (ArrayList's size/2)

Categories : Java
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