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QuestionHow to shuffle an array VS Windows Form Application? Pin
Sofi081326-Jul-21 0:26
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AnswerRe: How to shuffle an array VS Windows Form Application? Pin
OriginalGriff26-Jul-21 0:40
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Sofi081326-Jul-21 1:22
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AnswerRe: How to shuffle an array VS Windows Form Application? Pin
Richard MacCutchan26-Jul-21 0:42
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QuestionHow to find average value for duplicate keys in Dictionary? Pin
Alex Dunlop24-Jul-21 4:29
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AnswerRe: How to find average value for duplicate keys in Dictionary? Pin
Alex Dunlop24-Jul-21 6:29
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GeneralRe: How to find average value for duplicate keys in Dictionary? Pin
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AnswerRe: How to find average value for duplicate keys in Dictionary? Pin
OriginalGriff24-Jul-21 6:47
mveOriginalGriff24-Jul-21 6:47 
The simplest way is to create a dictionary that holds a tupple:
Dictionary<string, (int, double)> dict = new Dictionary<string, (int, double)>();

Then when you add your items, you check if the key name is already there.
If it isn't add it with a int of 1 as the count, and a double which is the value:
dict.Add("Alex", (1, 20.0));

If it is, increment the integer, and sum the new value :
dict["Alex"] = (dict["Alex"].Item1 + 1, dict["Alex"].Item2 + 17.5);

You can then work out the averages very simply in a loop when all items are added.
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AnswerRe: How to find average value for duplicate keys in Dictionary? Pin
BillWoodruff28-Jul-21 3:11
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QuestionEfficient method to build a CSV string Pin
Vikas Mishra Jul202123-Jul-21 10:46
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QuestionHow to get double value in string format? Pin
Alex Dunlop23-Jul-21 7:48
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GeneralRe: How to get double value in string format? Pin
OriginalGriff29-Jul-21 6:32
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GeneralRe: How to get double value in string format? Pin
Alex Dunlop29-Jul-21 6:48
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GeneralRe: How to get double value in string format? Pin
OriginalGriff29-Jul-21 6:32
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AnswerRe: How to get double value in string format? Pin
Richard MacCutchan23-Jul-21 8:59
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GeneralRe: How to get double value in string format? Pin
Alex Dunlop29-Jul-21 6:21
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GeneralRe: How to get double value in string format? Pin
Richard MacCutchan29-Jul-21 6:31
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QuestionNotify Icon Context Menu Won't Go Away Pin
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