A table in Lua is a set of key-value mappings with unique keys. The pairs are stored in arbitrary order and therefore the table is not sorted in any way. What you can do is iterate over the table in some order. The basic pairs gives you no guarantee of the order in which the … Read more
Do your groupby, and use reset_index() to make it back into a DataFrame. Then sort. grouped = df.groupby(‘mygroups’).sum().reset_index() grouped.sort_values(‘mygroups’, ascending=False)
As of Go 1.8 you can now use sort.Slice to sort a slice: sort.Slice(planets, func(i, j int) bool { return planets[i].Axis < planets[j].Axis }) There is normally no reason to use an array instead of a slice, but in your example you are using an array, so you have to overlay it with a slice … Read more
I learned something new, just like you as well I believe the difference is between a “String Sort” vs a “Word Sort” (ignores hyphen) Sample difference between WORD sort and STRING sort http://andrusdevelopment.blogspot.com/2007/10/string-sort-vs-word-sort-in-net.html From Microsoft http://support.microsoft.com/kb/322112 For example, if you are using the SQL collation “SQL_Latin1_General_CP1_CI_AS”, the non-Unicode string ‘a-c’ is less than the string … Read more
What is your question, precisely? Are you asking whether NaN exists, or whether it can be obtained as the result of accidental or voluntary computations? Yes, it does and it can. The sort of data structure that requires a total order for keys breaks down completely when the provided order is not a total order. … Read more
You seem to misunderstand something. What you have here is a associative array. Associative arrays have no explicit order on them, e.g. it’s only the internal representation (usually sorted) that orders them. In short — in Lua, both of the arrays you posted are the same. What you would want instead, is such a representation: … Read more
It seems to be missing the Apply. Can you Add MyWorksheet.Sort.Apply The custom order you have is working as is in my sample. EDIT Updated based on OP updated question Edit the macro to the following – using an array for the OrderCustom parameter. Dim oWorksheet As Worksheet Set oWorksheet = ActiveWorkbook.Worksheets(“Sheet1”) Dim oRangeSort As … Read more
Prior to 2015, the Internet Movie Database (IMDb) publicly listed the formula used to rank their Top 250 movies list. To quote: The formula for calculating the Top Rated 250 Titles gives a true Bayesian estimate: weighted rating (WR) = (v ÷ (v+m)) × R + (m ÷ (v+m)) × C where: R = average … Read more
The true quicksort has two beautiful aspects: Divide and conquer: break the problem into two smaller problems. Partition the elements in-place. The short Haskell example demonstrates (1), but not (2). How (2) is done may not be obvious if you don’t already know the technique!
First of all shuffling is the process of transfering data from the mappers to the reducers, so I think it is obvious that it is necessary for the reducers, since otherwise, they wouldn’t be able to have any input (or input from every mapper). Shuffling can start even before the map phase has finished, to … Read more