for-loop

问题 I have 2 tensors, my prediction tensor pred is of shape [batch, rows, cols, depth, vals] or [32, 40, 60, 2, 2] . My ground truth tensor y is shape [batch, num_objs, vals] or [32, 4, 10] . The y tensor has values that correspond to a slice of the pred tensor. I get the indexes using true_grid_coords = (y[:,:,:2] // params.grid_stride) Now I want to create a mask with the same shape as my pred tensor using the vals from true_grid_coords . I want something like [batch, rows, cols, depth, vals] =

问题 I would like to non-circularly shift my matrix and then have zeros padded to either the left or right (depending on the shift) i.e. if the matrix shifts to the right, zeros would be padded to the left. I am using MATLAB 2019b and my code so far looks like this: %dummy data data = rand(5, 16); channelSink = 9; %this variable will either be >layerIV, <layerIV or =layerIV layerIV = 7; diff = layerIV - channelSink; for channel = 1:16 if channelSink > layerIV %shift columns to the left by ab(diff)

问题 I've got a 20 variables which are named line1, line2, line3.. up to line20. Is there a way in python to use a for loop to reference each of these variables in sequence i.e. iterate through them? Something to this effect: for i in range(1,21): print(line+str(i)) Although I know that's wrong. 回答1: Don't use separate variables like that. Use a list. Having a bunch of similarly-named variables is an anti-pattern. lines = [] # add 20 strings to the list for line in lines: print(line) 回答2: Move

问题 I need to know how to find duplicate values in integer array by loop method in swift? I tried to -> func findDuplicates (array: [Int]) { var prevItem = array[0] for i in 0...array.count-1 { if prevItem == array[i] { print(i) } else { print("there is no any duplicates values") } } } please show my solution in this way! 回答1: You can use a set and every time you try to insert an element it fails it means it is a duplicate. You would need also to make sure you don't keep duplicate elements on the

问题 I need to delete nested for loop in a function I created. My function receive an associative array and I return a new array based on certain properties in order to group messages to use later. For example, I have two schools, many students. So I group them based on gender and grade. I don't how to refactor this function because I don't know much about algorithms. It doesn't matter if my logic need be erased completely or need to be done again. I must delete the second for loop. Also, I can

问题 Here is the full code for demonstration: http://jsfiddle.net/DF2Uw/4/ Basically, I generate multiple event listeners with a FOR loop. I generate multiple <selects> and want to detect the onChange event and return the ID of the specific select that was changed. However it seems only the last eventlistener survives as the others do no trigger. Any explanation for this behavior? HTML <ol id="slots"></ol> JAVASCRIPT var slotnameHtml = ''; for (var i = 0; i < 3; i += 1) { var slotname = document

问题 Here is the full code for demonstration: http://jsfiddle.net/DF2Uw/4/ Basically, I generate multiple event listeners with a FOR loop. I generate multiple <selects> and want to detect the onChange event and return the ID of the specific select that was changed. However it seems only the last eventlistener survives as the others do no trigger. Any explanation for this behavior? HTML <ol id="slots"></ol> JAVASCRIPT var slotnameHtml = ''; for (var i = 0; i < 3; i += 1) { var slotname = document

问题 I'm still fairly new with Google Scripts. I have a student roster Google Sheet with demographic information, including ID numbers. I also have a responses Sheet that automatically collects email addresses on Column B (email addresses are created by the ID number plus "@foo.org"). I'm trying to get my script to parse through auto-collected emails, map the ID portion of the email onto column C. Then I'm using for loops to check the extracted ID number against my main roster, and map the

问题 So I got a question and I was hoping you can point me to the right direction, full context problem, I have a 3D numpy array that I use to create graphs using Networkx and with these graphs I find the shortest path. What I need is that given a set of coordinates add "1" in these coordinates until the list of the shortest path changes (This is just an example, the list of coordinates can have more coordinates), my code is the following: import numpy as np import networkx as nx arr = np.array([[

问题 I'm iterating through the event_list and want to display info for each entry. But my html only shows the first entry despite whatever entry I click on. i.e If i click on green event it expands the my wedding card-body . I want it to expand separate event details for each separate entry. How do I do that? index.html {% extends 'event/eventAdminBase.html' %} {% load static %} {% block content %} {% if event_list %} {% for events in event_list %} <div id="accordion"> <div class="card"> <div