Question

I need some help with a lamda expression to get a subset of range of values. I have a lower and upper value, and getting everything between them seems easy enough, but I also need the next lower and higher value to be included. I can do each of these seperately, but would like to do it in one shot if possible.

The range I need the subset from has 150 values. A small example would look like:
{8.206,8.206,8.201,8.196,8.193,8.192,8.189,8.174,8.171,8.171,8.166,8.163,8.157,8.154,8.153,8.14,8.131}

My lower value is: 8.16
My upper value is: 8.17

I need to get back: {8.171,8.171,8.166,8.163,8.157}

Answer 1

I ended up doing something like this:

Dim myData As New List(Of someData) 
myData = sorceData.Where(Function(i) i.somevalue >= myLowervalue And i.somevalue <= myUpperValue).ToList 
myData = myData.Concat(sorceData.Where(Function(i) i.somevalue > myUpperValue).Take(1).ToList).ToList 
myData = myData.Concat(sorceData.Where(Function(i) i.somevalue < myLowervalue ).Take(1).ToList).ToList 

It’s not a single expression, but it works.