increment

What's the most efficient way to increment an array by a reference while broadcasting row to column in NumPy Python? Can it be vectorized?

由 北城以北 提交于 2019-12-08 06:15:25
问题 I have this piece of code in Python for i in range(len(ax)): for j in range(len(rx)): x = ax[i] + rx[j] y = ay[i] + ry[j] A[x,y] = A[x,y] + 1 where A.shape = (N,M) ax.shape = ay.shape = (L) rx.shape = ry.shape = (K) I wanted to vectorize or otherwise make it more efficient, i.e. faster, and if possible more economical in memory consumption. Here, my ax and ay refer to the absolute elements of an array A, while rx and ay are relative coordinates. So, I'm updating the counter array A. My table

Java value plus variable++

由 旧城冷巷雨未停 提交于 2019-12-08 02:45:56
问题 Consider the following code int val1 = 3; val1++; int val2 = val1++; System.out.println(val1); System.out.println(val2); Val1 value = 5; Val2 value = 4; Why is the value of Val1 "5"? As I understand it it should be 4, because: at line1 it is assigned value of 3, on line2 1 gets added by way of val1++ which result in val1 being 4. Val2 is the value of val1 thus 4, plus 1 which is 5 HOwever the compiler gives val1 a value of 5 and val2 a value of 4, what am I not understanding or missing here?

batch for loop increment value ENABLEDELAYEDEXPANSION

由 跟風遠走 提交于 2019-12-07 22:42:39
问题 I'm trying to make a simple batch-file to make 7zip-archives from all the files in it's directory. I want the 7zip-archives to get names like a01.7z , a02.7z , a03.7z ... Apparently incrementing a value in a batch-for-loops isn't easy. The setlocal ENABLEDELAYEDEXPANSION solution doesn't work on my computer (windows 10, 64-bit) Someone suggested putting the increment-code in a subroutine: set /a counter=0 for %%i in (*.*) do ( call :pass2 goto :cont :pass2 set /a counter=%counter%+1 goto :EOF

Start new numbered list using jQuery

由 那年仲夏 提交于 2019-12-07 16:26:42
问题 <ul> <li>test</li> <li>test</li> <li>test</li> <li>test</li> <li>test</li> <li>test</li> <li>test</li> </ul> <script> $(document).ready(function(){ var increment=3; var start=8; $("ul").children().each(function(i) { $(this).prepend('<tag>'+(start+i*increment).toString()+'.</tag>'); }); }); </script> Is there a way to start a new count for another ul list? With the code above this is what i get! <ul> <li> test <li> test <li> test <ul/> Output 1. test 2. test 3. test second ul list <ul> <li>

post increment behaviour [duplicate]

由 大憨熊 提交于 2019-12-07 16:23:33
问题 This question already has answers here : What is x after “x = x++”? (17 answers) Closed 6 years ago . i have small doubt.why the below code is printing value i=2. int i=2; i=i++; System.out.println(i); can someone please explain me what is happening in line no 2. so there is no meaning here of doing ++ here? Thanks 回答1: i=i++; Because first the assignment happens, then the increment applies. Something like: first i gets 2, then ++ operation happens, but results won't be re-assigned to i, so i

Why isn't this int incrementing?

由 牧云@^-^@ 提交于 2019-12-07 08:36:25
I am stuck on probably an easy problem, but I really can't find why it isn't working. I am trying to increase mijnScore with 1 each time the method gets called. But somehow mijnScore goes back to 0 after the method is done. int mijnScore = 0; ... public void updateUI() { System.out.println("updateUI"); SwingUtilities.invokeLater(new Runnable() { public void run() { ikWin = true; while(ikWin) { mijnScore++; System.out.println("mijnScore" + mijnScore); Scoresp1.setText(mijnScore + ""); ikWin = false; positie = 0; } } }); } Solved Making the variable static solved my problem. static int mijnScore

Increment matrix structure in MongoDb

由 隐身守侯 提交于 2019-12-07 07:32:18
问题 I would like to have a matrix structure (a NxN integer matrix) and I want to increment values in it. Which is the right approach to model a matrix in MongoDb and to increment theirValues? 回答1: Lets consider we have: 1 2 3 4 5 6 7 8 9 You can store matrix as embedded array in mongodb in different ways: 1.Represent matrix as one-dimensional array and store like this: { _id: "1", matrix: [1,2,3,4,5,6,7,8,9], width: 3, // or store just size in case of NxN height: 3, } Then to increment third

Variable is incremented twice in node.js http callback function

由 时间秒杀一切 提交于 2019-12-07 06:56:38
问题 I was playing around with node.js and something strange happens when you run this code: var http = require("http"); var i = 0; function onRequest(request, response) { response.writeHead(200, {"Content-Type": "text/plain"}); response.write("You're number " + i++); response.end(); } http.createServer(onRequest).listen(8888); I would expect it to behave like a page views counter, but with each refresh of the browser tab i get the result of what seems to be i=i+2 instead of a simple increment.

C# increment ToString

由 假如想象 提交于 2019-12-07 05:58:24
问题 I add an unexpected behaviour from C#/WPF private void ButtonUp_Click(object sender, RoutedEventArgs e) { int quant; if( int.TryParse(Qnt.Text, out quant)) { string s = ((quant++).ToString()); Qnt.Text = s; } } So, if I get quant as 1, quant will be incremented to 2. But the s string will be 1. Is this a question of precedence? EDIT: I re-wrote this as: quant++; Qnt.Text = quant.ToString(); and now this works as I expected. 回答1: You are using the post -increment operator. This evalutates to

jQuery: Stop decrementing textbox value if value equals 0

由 旧巷老猫 提交于 2019-12-07 00:29:46
What I have: I have a readonly textbox and two links. The first link increments the value of the textbox by 1 whereas the second link decrements the value by 1. What I need: I need the textbox value to stop decrementing at zero (I don't want negative numbers). My code: jQuery: jQuery(".increment").on('click',function(){ jQuery(this).next(".amount input").val(parseInt(jQuery(this).next(".amount input").val())+1); }); jQuery(".decrement").on('click',function(){ jQuery(this).prev(".amount input").val(parseInt(jQuery(this).prev(".amount input").val())-1); }); Note: .next and .prev are used because
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