for-loop

问题 What I am trying to do is to create an App in which there are 26 boxes with ids case0, case1, case2 and so on. When clicked, these should add class 'black' to respective item0, item1, item2 and so on. My current code looks like this: let num = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25]; let guess = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25]; let i,x; let arrayShuffle = function(arr){ let newPos,temp; for (let i = arr.length-1; i > 0; i--)

问题 What I am trying to do is to create an App in which there are 26 boxes with ids case0, case1, case2 and so on. When clicked, these should add class 'black' to respective item0, item1, item2 and so on. My current code looks like this: let num = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25]; let guess = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25]; let i,x; let arrayShuffle = function(arr){ let newPos,temp; for (let i = arr.length-1; i > 0; i--)

问题 I am trying to create multiple linear regression models from a list of variable combinations (I also have them separately as a data-frame if that is more useful!) The list of variables looks like this: Vars x1+x2+x3 x1+x2+x4 x1+x2+x5 x1+x2+x6 x1+x2+x7 The loop I'm using looks like this: for (i in 1:length(var_list)){ lm(independent_variable ~ var_list[i],data = training_data) i+1 } However it is not recognizing the string of var_list[i] which gives x1+x2+x3 etc. as a model input. Does any-one

问题 Using beautiful soup and python, I have undertaken some webscraping of the shown website to isolate: the rank, company name and revenue. I would like to show, in an html table that I am rendering using flask and jinja2, the results of the top ten companies in the table, however, the code I have written is just displaying the first record five times. Code in file: webscraper.py url = 'https://en.m.wikipedia.org/wiki/List_of_largest_Internet_companies' req = requests.get(url) bsObj =

问题 Using beautiful soup and python, I have undertaken some webscraping of the shown website to isolate: the rank, company name and revenue. I would like to show, in an html table that I am rendering using flask and jinja2, the results of the top ten companies in the table, however, the code I have written is just displaying the first record five times. Code in file: webscraper.py url = 'https://en.m.wikipedia.org/wiki/List_of_largest_Internet_companies' req = requests.get(url) bsObj =

问题 Using beautiful soup and python, I have undertaken some webscraping of the shown website to isolate: the rank, company name and revenue. I would like to show, in an html table that I am rendering using flask and jinja2, the results of the top ten companies in the table, however, the code I have written is just displaying the first record five times. Code in file: webscraper.py url = 'https://en.m.wikipedia.org/wiki/List_of_largest_Internet_companies' req = requests.get(url) bsObj =

问题 I have a std::vector<MyClass*> container of pointers to objects of some class, and want to iterate over the vector using a range-based for loop, like this for (MyClass *item : container) { // Do stuff, not changing the container } Inside this loop I want to loop through the container one more time, but starting at the next element in the container. I couldn't really find a way of doing this without iterators, so my solution was to just use those instead for (auto item1 = container.begin();

问题 I have a std::vector<MyClass*> container of pointers to objects of some class, and want to iterate over the vector using a range-based for loop, like this for (MyClass *item : container) { // Do stuff, not changing the container } Inside this loop I want to loop through the container one more time, but starting at the next element in the container. I couldn't really find a way of doing this without iterators, so my solution was to just use those instead for (auto item1 = container.begin();

问题 I have a std::vector<MyClass*> container of pointers to objects of some class, and want to iterate over the vector using a range-based for loop, like this for (MyClass *item : container) { // Do stuff, not changing the container } Inside this loop I want to loop through the container one more time, but starting at the next element in the container. I couldn't really find a way of doing this without iterators, so my solution was to just use those instead for (auto item1 = container.begin();

问题 I have multiple data frames (moving temperature of different duration at 130 observation points), and want to generate monthly average for all the data by applying the below code to each data frame - then put the outcome into one data frame. I have been trying to do this with for-loop, but not getting anywhere. I'm relatively new to R and really appreciate if someone could help me get through this. Here is the glimpse of a data frame: head(maxT2016[,1:5]) X X0 X1 X2 X3 1 20160101 26.08987 26