minimum

问题 I am trying to create a column which contains only the minimum of the one row and a few columns, for example: A0 A1 A2 B0 B1 B2 C0 C1 0 0.84 0.47 0.55 0.46 0.76 0.42 0.24 0.75 1 0.43 0.47 0.93 0.39 0.58 0.83 0.35 0.39 2 0.12 0.17 0.35 0.00 0.19 0.22 0.93 0.73 3 0.95 0.56 0.84 0.74 0.52 0.51 0.28 0.03 4 0.73 0.19 0.88 0.51 0.73 0.69 0.74 0.61 5 0.18 0.46 0.62 0.84 0.68 0.17 0.02 0.53 6 0.38 0.55 0.80 0.87 0.01 0.88 0.56 0.72 Here I am trying to create a column which contains the minimum for

问题 I was working on an embedded project when I ran into something which I thought was strange behaviour. I managed to reproduce it on codepad (see below) to confirm, but don't have any other C compilers on my machine to try it on them. Scenario: I have a #define for the most negative value a 32-bit integer can hold, and then I try to use this to compare with a floating point value as shown below: #define INT32_MIN (-2147483648L) void main() { float myNumber = 0.0f; if(myNumber > INT32_MIN) {

问题 I have recently used the function minEnclosingCircle of OpenCV (2.4.2) because I needed to measure the diameters of a blob of points. After a while I realized that the results were not correct, so I decided to write a small routine that calculates the diameters of a really small set of points. I tested the function against: 1 single point 2 - 4 points in a row Squares of different size formed by only 4 corner points In the table below you can see the results of my tests: Note Diameter Center

问题 Consider the following numeric widget in an R Shiny app: numericInput("val", "Enter value:", value = 50, min = 0, step = 5) If you click on the up/down arrows in the widget when the app is run, the value will increase or decrease by 5 (0, 5, 10, 15,...) as expected. Now consider changing the min value to 1: numericInput("val", "Enter value:", value = 50, min = 1, step = 5) If you now click on the up/down arrows, the value will still increase/decrease by 5, but start from 1, creating the

问题 I have a large array of floating point numbers and I want to find out the minimum value of the array (ignoring -1 s wherever present) as well as its index, using reduction in CUDA. I have written the following code to do this, which in my opinion should work: __global__ void get_min_cost(float *d_Cost,int n,int *last_block_number,int *number_in_last_block,int *d_index){ int tid = threadIdx.x; int myid = blockDim.x * blockIdx.x + threadIdx.x; int s; if(result == (*last_block_number)-1){ s = (

问题 Ok so i need to make a program to ask me for an amount of money, then I need it to tell me the least amount of coins to make it. The coins I can use are: dollars, quarters, dimes, nickels, and pennies. For example, When I run the program it's supposed to look like this: > run Coins Enter the amount of given money: [1.73] Give the seller 8 coins: 1 dollars, 2 quarters, 2 dime, 0 nickels, 3 pennies. This is What I have so far: import java.util.Scanner; class Coins { public static void main

问题 I already saw a similar question here(Get minimum unused value in MySQL column) which is exactly what I want except what I need to select the minimum available number not from just a table but from rows with specific customId as well. In case the other question gets removed or something, here is what query is needed: In case of rows [1,2,3] the query should return 4 . In case of rows [2,3,4] the query should return 1 . In case of rows [1,3,4] the query should return 2 . In case of multiple

问题 I'm having some trouble trying to do some custom validation with a select2 jQuery plugin I need to force user to select at least 2 items from the list . The select2 plugin has a property maximumSelectionSize that allows user to select up to X items from the list, but it does not have the "inverse" property. Also the required tag won't work because I need user to select more than one item. As I'm working developing a custom validator with parsley validation plugin, I'd need to know how to get

问题 I have a matrix of integer values, the x axis represent different days and y axis represents hour of the day. And in each cell is a number that indicates how many hours of the day of the day correspond some criteria of the day which is just going on. That's why I need to calculate it for every hour and not only at the end of the time. The whole issue is I have then to pick 5 best days which have the lowest number (least corresponding). So basically in the matrix it means select 5 lowest

问题 I've been struggling with the maximum/minimum date lately, and honestly, I don't know what I'm missing here. I searched a lot and no one seems to complain about it. (I'm not talking about setting a maximum/minimum date as these can only make invalid dates appear gray) Here's what I've done so far: [myDatePicker addTarget:self action:@selector(disableDate) forControlEvents:UIControlEventValueChanged]; Then, on disableDate, I have something like this: if ([myDatePicker.date compare:[NSDate date