min

问题 Using SQL 2005, is there a way to select the minimum value between 5 columns within one single row of data? So, if I have a row of data like this: id num1 num2 num3 num4 num5 1 22 51 4 99 34 Then, how can I get the lowest value using SQL? 回答1: You can create a UDF. create function GetMin(@N1 int, @N2 int, @N3 int, @N4 int, @N5 int) returns table as return (select min(N) as Value from (select @N1 union all select @N2 union all select @N3 union all select @N4 union all select @N5) as T(N)) And

问题 I have two columns in my pandas DataFrame. A B 0 1 5 1 2 3 2 3 2 3 4 0 4 5 1 I need the value in A where the value of B is minimum. In the above case my answer would be 4 since the minimum B value is 0. Can anyone help me with it? 回答1: To find the minimum in column B, you can use df.B.min() . For your DataFrame this returns 0 . To find values at particular locations in a DataFrame, you can use loc : >>> df.loc[(df.B == df.B.min()), 'A'] 3 4 Name: A, dtype: int64 So here, loc picks out all of

问题 I have a bidimensional array ( double[ , ] ), and I want to find out what's the minimum. I tried Linq.Select.Min, but since my arrays typically contain NaN values, then minvalue is always NaN . So, I need some way to find the Minimum value that "skips" the NaNs. Any help is much appreciated! 回答1: Today is the day for extension methods! Use this to have a generic Min() function on all your double[,] ! Heres some generic [,] extensions. Please note this will only be available for types that

问题 Updated Code that creates array, but ISNT outputting the min/max values. Why isnt this working and how do I get it to automatically remove the min/max value and then reoutput the array? <?php $url = 'https://www.googleapis.com/shopping/search/v1/public/products?key=thekey&country=US&q=nintendo+wii'; $data = curl_init($url); curl_setopt($data, CURLOPT_RETURNTRANSFER, TRUE); curl_setopt($data, CURLOPT_HEADER, 0); $product_result = curl_exec($data); curl_close($data); $arr = json_decode($product

问题 I'm trying to figure out away to split the first 100,000 records from a table that has 1 million+ records into 5 (five) 20,000 records chunks to go into a file? Maybe some SQL that will get the min and max rowid or primary id for each 5 chunks of 20,000 records, so I can put the min and max value into a variable and pass it into the SQL and use a BETWEEN in the where clause to the SQL. Can this be done? I'm on an Oracle 11g database. Thanks in advance. 回答1: If you just want to assign values 1

问题 I have a array like so: var arr = [[12,45,75], [54,45,2],[23,54,75,2]]; I want to find out the largest element and the smallest element out of all the elements in the nested array: The min should be: 2 and Max should be 75 I tried the functions below but they do not work: function Max(arrs) { if (!arrs || !arrs.length) return undefined; let max = Math.max.apply(window, arrs[0]), m, f = function(v){ return !isNaN(v); }; for (let i = 1, l = arrs.length; i<l; i++) { if ((m = Math.max.apply

问题 I have small piece of code to print smallest element in the range using std::min_element. cppreference example print the index of smallest element, but i want to print smallest element instead of index number. #include <algorithm> #include <iostream> #include <vector> int main() { std::vector<int> v{3, 1, 4, 1, -5, 9}; std::cout << std::min_element(std::begin(v), std::end(v)); } But, I got following an error: main.cpp: In function 'int main()': main.cpp:8:15: error: no match for 'operator<<'

问题 This question already has answers here : How many significant digits do floats and doubles have in java? (6 answers) Closed 2 years ago . I was wondering, why my simple addition of some double values leads to the following results in Java: double a = 1 + 1E-10; // 1.0000000001 (as expected) double b = 1 + 1E-15; // 1.000000000000001 (as expected) double c = 1 + 1E-20; // 1.0 (why?) I thought I can at least add a value of Double.MIN_VALUE, which seems to be 4.9E-324. What am I doing wrong here

问题 This question already has answers here : How many significant digits do floats and doubles have in java? (6 answers) Closed 2 years ago . I was wondering, why my simple addition of some double values leads to the following results in Java: double a = 1 + 1E-10; // 1.0000000001 (as expected) double b = 1 + 1E-15; // 1.000000000000001 (as expected) double c = 1 + 1E-20; // 1.0 (why?) I thought I can at least add a value of Double.MIN_VALUE, which seems to be 4.9E-324. What am I doing wrong here

问题 OK, so I'm working on a home theater system, and to display the list of TV series I have been selecting the first episode of the first season and displaying the associated information for just that episode, then you can drill down to others. That way I can keep all the movies and all the TV shows in a single table which makes the playback functions much easier. The problem is, some of the series I don't have the first episode in the database, and I want them to appear anyway, so I want to