2024 C# find nearest value in list

C# find nearest value in list

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WebJan 19, 2024 · with linq i found this solution. List list = new List { 4, 2, 10, 7 }; int number = 5; // find closest to number int closest = list.OrderBy (item => Math.Abs (number - item)).First (); how to achieve the same output without LINQ? Thanks C# 0 Sign in to follow I have the same question 0 Sign in to comment Accepted answer Dimple Rane 881 WebAug 27, 2024 · Once your list has been sorted the first time you can use list.BinarySearch to find the insertion point. You'll find it MUCH faster than a squential scan on a large list. …

c# - Find the closest time from a list of times - Stack Overflow

WebMar 22, 2014 · int nearestIndex = Array.IndexOf (array, array.OrderBy (number => Math.Abs (number - TargetNumber)).First ()); Share Follow edited Mar 22, 2014 at 6:12 answered Mar 22, 2014 at 5:57 SpiderCode 10k 1 22 42 1) he is working with decimals not doubles, 2) he wants the index not the value of the index. – Scott Chamberlain Mar 22, 2014 at 6:05WebOr use Find instead of FindIndex: var value = MyList.Find (item => item.name == "foo").value; I'd strongly suggest using LINQ though - it's a much more idiomatic approach these days. (I'd also suggest following the .NET naming conventions.) Share Improve this answer Follow answered Apr 23, 2013 at 19:06 Jon Skeet 1.4m 857 9074 9155 5 t shirt making classes

c# - Finding the closest data point in a sequential list - Code …

Webvar keys = new List (dictionary.Keys); and then efficiently perform binary search on it: var index = keys.BinarySearch (key); As the documentation says, if index is positive or zero then the key exists; if it is negative, then ~index is the index where key would be found at if it existed. WebOct 28, 2016 · Put the values in an list of objects (where each object has a property ID and a value) or a dictionary with string ID and decimal value Loop through the list or dictionary and find the minimum value If the value is found or their difference is minimum, print the item ID (in this case B) philosophy in little alchemy 2

How to get the nearest one to a given value in a List, and …

How do we find very first closest value from the list of …

WebYou can find the indices with: int leftIndex = (-Collections.binarySearch (allItems, key) - 2); int rightIndex = (-Collections.binarySearch (allItems, key) - 1); The item in the list will need to implement Comparable . Simple types like String and Integer already implement this.WebNov 26, 2024 · The following code returns the minimum value of the first range in the list that contains your search value. double FindClosest (List data, double value) { for (var i = 0; i < data.Count - 1; i++) if (data [i] <= value && value <= data [i + 1]) return data [i]; return data.Last (); } Please sign in to rate this answer. Sign in to comment philosophy in mainstreamingWebJul 14, 2024 · Given a List t shirt making class near me

"Webstring bestMacht = list.OrderBy(s => string.Compare(s, input)).First(); This is only the first approach because the order of words should be ignored. Let's improve this to a full solution . " - C# find nearest value in list

C# find nearest value in list

Find closest float in array for all floats in another array

WebFind closest value in a 2d grid c# brian4342 2016-03-03 12:13:13 739 1 c#/ multidimensional-array/ a-star/ robot. Question. I have created an c# console application … WebDec 10, 2012 · Call LevenshteinDistance (targetString, possible [i]) for each i, then pick the string possible [i] for which LevenshteinDistance returns the smallest value. Share Improve this answer Follow answered Dec 10, 2012 at 1:00 Sergey Kalinichenko 710k 82 1096 1508 This just finds the closest in length to the given string.

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WebJan 19, 2024 · Without LINQ, you can use a for loop to iterate through the list and keep track of the closest number. You can initialize a variable to store the closest number … WebOct 28, 2016 · Put the values in an list of objects (where each object has a property ID and a value) or a dictionary with string ID and decimal value Loop through the list or dictionary and find the minimum value If the …

WebApr 15, 2024 · 3. Suppose you would declare "mid" outside the loop and return it ? Instead of -1 ? When your array is sorted and the searched value is not found, you will get a mid result pointing to the lower value in the array closest to your search value. The element above your search value is contained in a [mid+1]. WebNov 2, 2012 · The part of the code I am unsure of is the while loop for finding the nearest key -- but any assistance with optimizing the code would be appreciated. // TODO: Move to snippets lib or create a new collection type that supports this feature private string _getTrait (SortedList thisList, decimal thisValue) { // Check to see if we ...

WebNov 5, 2014 · The main method of interest, FindClosestSmaller (), returns a Tuple where .Item1 is the index of the outer list that contains the closest value that is less than or equal to a target value, and .Item2 is the index … WebOct 14, 2015 · It's better than using OrderBy because it runs in O (n) instead of O (n log n). EDIT: if two numbers are equally close to the target and you want the greater of the two, you can do this: public static float ClosestTo (this IEnumerable collection, float target) { return collection .OrderBy (x => Math.Abs (target - x)) .ThenByDescending (x ...

WebJul 14, 2024 · private int FindClosestPoint (double val, List list) { int ret = new int (); int max = list.Count; int min = 0; int index = max / 2; while (max - min > 1) { if (val list [index]) min = index; else return index; index = (max - min) / 2 + min; } if (max != list.Count && min != 0) { if (Math.Abs (list [max] - val) < Math.Abs (list [min] - val)) ret …

Webint closestColor1(List colors, Color target) { var hue1 = target.GetHue(); var diffs = colors.Select(n => getHueDistance(n.GetHue(), hue1)); var diffMin = diffs.Min(n => n); return diffs.ToList().FindIndex(n => n == diffMin); } // closed match in RGB space int closestColor2(List colors, Color target) { philosophy in literatureWebJun 10, 2011 · How to get the list index where you can find the closest number? List list = new List { 2, 5, 7, 10 }; int number = 9; int closest = list.Aggregate ( (x,y) => Math.Abs (x-number) < Math.Abs (y-number) ? x : y); c# .net linq Share Follow edited Jun 10, 2011 at 6:55 Peter Mortensen 31k 21 105 126 asked May 10, 2011 at 22:00 andres philosophy in little alchemyWebJan 28, 2014 · Kd-tree is really overkill here, all you need to do is sort the array and use binary search to find the closest value in the sorted array. I wrote an answer a while back about how to use searchsorted to find the closet value to a target in an array. You can use the same idea here: philosophy in logicWebNov 26, 2024 · The following code returns the minimum value of the first range in the list that contains your search value. double FindClosest (List data, double value) { … t shirt making app downloadWebSep 25, 2014 · I've a list like this: public List> blanks { get; set; } This keep some index values: In addition I have also a variable named X. X can take any value. I want to find closest and smaller 'Key' value to X. I can take only closest value via this code block. But, it can't take smaller one. philosophy in maliWebNov 18, 2009 · 12 Answers Sorted by: 73 var closestTime = listOfTimes.OrderBy (t => Math.Abs ( (t - fileCreateTime).Ticks)) .First (); If you don't want the performance overhead of the OrderBy call then you could use something like the MinBy extension method from MoreLINQ instead: var closestTime = listOfTimes.MinBy (t => Math.Abs ( (t - … t shirt making classes for freeWebNov 23, 2024 · nearest = min (cooList, key=lambda x: distance (x, coordinate)) with a function distance (a, b) returning the distance between the points a and b as a float, which you have to define yourself. Now you have to decide how you calculate the distance: using simple a² + b² = c², some geographical formula or a dedicated library. Share Improve this … t shirt making at home