conditional-statements

问题 I am trying to do the following with wordpress : "If is NOT page 92, OR page parent is NOT 92." Here is what I have: <?php if (!is_page(92) || $post->post_parent !== 92) { echo $foo; } ?> If I use one or the other as condition, it works; When I add the second condition, it breaks. Any help would be well appreciated. Cheers! 回答1: Your problem is probably in using || instead of &&. You want it to echo if you are not on page 92 AND you are not in a subpage of page 92. Let's say you're on page 92

问题 This question already has answers here : Apply several summary functions on several variables by group in one call (7 answers) Closed last month . I have a template that I use to aggregate up my data from its source to get means and 95% confidence levels, in order to plot these in ggplot (originally adapted from a Stack Overflow post many years ago, apologies but I don't know the original source) that looks like: data %>% group_by(var1, var2) %>% summarise(count=n(), mean.outcome_variable =

问题 In the main method of my server class I have a series of if statements for the reserved keywords of a chat program which I am trying traverse using the value of a variable along with the .equalsIgnoreCase method. The problem is that even though my variable holds a certain value, when executing the program the code always steps into the else clause even if there is an exact match between the variable and one of the if conditions. The code compiles fine but I just cant figure out why this is

问题 This question is a follow up from another I had here SAS: Data step view -> error: by variable not sorted properly; I am opening a new question as the desired solution is slightly different: As I am looping through several input files, one of the raw-files is not properly sorted, I wonder what I could do to make my program to skip that particular input file and just continue? Quote: I am using a macro to loop through files based on names and extract data which works fine for the majority of

问题 I have the following DF: Week SKU Discount(%) 1 111 5 2 111 5 3 111 0 4 111 10 1 222 0 2 222 10 3 222 15 4 222 20 1 333 5 2 333 0 3 333 0 I would like to have this outcome: Week SKU Discount(%) Duration LastDiscount 1 111 5 2 0 2 111 5 2 0 3 111 0 0 0 4 111 10 1 2 1 222 0 0 0 2 222 10 3 0 3 222 15 3 0 4 222 20 3 0 1 333 5 1 0 2 333 0 0 0 3 333 0 0 0 Duration is the number of weeks that 1 SKU had discounts continuously. LastDiscount counts the number of weeks from the last time the SKU was on

问题 Building on this question: Summarize with conditions in dplyr I would like to use dplyr to summarize a column based on a mathematical condition (not string matching as in the linked post). I need to find the maximum measurement when the ratio of measurement / time is the highest, while creating a new column ratio . I'd also like to carry through the entire row, which I'm unsure how to do with dplyr 's summarize function. Example Data Frame print(df) sample type time measurement 1 a bacteria

问题 I was wondering if there is any better way to handle n no. of if/else-if block in Java. I have a situation where I need to print different values based on n no. of if/else-if/conditions blocks like if(p==1 && q==r) System.out.println("Condition 1"); else if(r==p && q==9) System.out.println("Condition 2"); else if(z==1 && s==r) System.out.println("Condition 3"); else if(p==1 || x==r && y==7) System.out.println("Condition 4"); else if(q==z && y==r || p==4) System.out.println("Condition 5");

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 3 years ago . I am getting an error using while loop in this manner, and I don't understand why: int count = 5; while(count--) //here showing an error { Console.WriteLine("Number : {0}", count); } However, in C, the code works properly. I am little bit confused about why I am getting this error. Can anyone explain why? 回答1: C

问题 my code is as followed: return User::whereHas('roles', function ($role, $query) { return $role; $query->whereId($role); })->get(); what I am trying is to pass role id here to query builder. it ends up with following error: Symfony\Component\Debug\Exception\FatalThrowableError Too few arguments to function App\Http\Controllers\UserController::App\Http\Controllers\{closure}(), 1 passed in /Users/x/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php on line 962 and exactly 2

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 3 months ago . Let's say I have this list of ints: var numbers = new List<int> { 0, 0, 0, 27, 29, 24, 35, 33, 32, 1, 1, 1, 22, 55, 44, 44, 55, 59, 0, 0, 0, 0 }; I want to implement the search algorithm described below. I am looking for the number 59. Some unspecified condition determines if I