conditional-statements

问题 Expanding on a previous question (R: gsub of exact full string with fixed = T). [With huge thanks to everyone who helped there. Special thanks to @MrFlick] I need to change "32 oz" to "32 ct" but only if extra condition "3" is met, not in any other case. exact_orig = c("oz" ,"32 oz") exact_change = c("20 oz","32 ct") exact_flag = c("1" ,"3") fixedTrue<-function(x,y) { m <- match(x, exact_orig) n <- match(y, exact_flag) x[!is.na(m) & n[!is.na(n)]]<- exact_change[m[!is.na(m)] & n[!is.na(n)]] x

问题 I've got, in my Toolbar.as class, a simple variable (4-digit number) displayed in a dynamic text box, like that : var number = 9999; useText.text = String(number); trace(number); In my puzzle class I have a condition and I would like to decrease the number if it's true. How can I do that ? For exemple, I've got, in my Puzzle.as class : if (inv.containsItem("rock")) { toolbar.useText.text = "String(number)" - 100; } But it doesn't work (I know that I have to change the "String(number)" - 100

问题 trying 1 conditions and it's works INDEX($E$7:$E$13;SMALL(IF($H$7:$H$12="Not Paid";ROW($H$7:$H$12)-ROW($H$7)+1);1)) trying 2 conditions and not working INDEX($E$7:$E$13;SMALL(IF($H$7:$H$12="Not Paid";$G$7:$G$12="Debit";ROW($H$7:$H$12)-ROW($H$7)+1);1)) Please Help! 回答1: This works. {=INDEX($E$7:$E$13; SMALL(IF($H$7:$H$12 & $G$7:$G$12 = "Not PaidDebit"; ROW($H$7:$H$12)-ROW($H$7)+1); 1) )} 来源： https://stackoverflow.com/questions/52502464/excel-how-to-copy-move-unique-value-with-2-conditions

问题 I need some help about select with condition, right now I'm doing this: GROUP_CONCAT( CASE WHEN glpi_tickets.users_id_lastupdater = glpi_users.id THEN CONCAT(glpi_users.firstname, ' ', glpi_users.realname) END SEPARATOR '<br>') AS last_updater I select firstname and realname when users_id_lastupdater = id I guess there is a better way to do this? 回答1: group_concat seems like overkill for this. You could just use max() : max(CASE WHEN glpi_tickets.users_id_lastupdater = glpi_users.id THEN

问题 I have a question about intersection or rather collision detection with condition. I am doing a collision detection between a bar(Image) and a ball(Image). The bar can be moved up and down upon user's response on dragging the bar. The collision detection codes are as below. public bool Intersects(Rect barRectangle, Rect blueBallRectangle) { barRectangle.Intersect(blueBallRectangle); if (barRectangle.IsEmpty) { return false; } else { return true; } } In private void OnUpdate(object sender,

问题 I have this dataset: library(dpylr) Problem<- tibble(name = c("Angela", "Claire", "Justin", "Bob", "Gil"), status_1 = c("Registered", "No Action", "Completed", "Denied", "No Action"), status_2 = c("Withdrawn", "No Action", "Registered", "No Action", "Exempt"), status_3 = c("No Action", "Registered", "Withdrawn", "No Action", "No Action")) I want to make a column that has everyone's current status. If the person has ever completed the course, they are completed. If they were ever exempt, they

问题 How can I check a property for a specific value?? IE: The JSONT version of if(someProperty == someValue){ //Do some stuff } 回答1: The control-of-flow syntax for if is: {.if pagination} // Do some stuff {.end} But if you're looking to do if/equals then: {.equal? @index 1} // Do some stuff {.end} That said, it appears that JSONT is a forked language without an active community working on any particular implementation so the syntax will vary. In this case, I'm referring to Squarespace's

问题 I would like to reformat my code without the if then else condition. Is there an easy way to do this? This is just an exemple of code. I think using IF-THEN-ELSE in prolog is weird :\ And I'm looking to get something more recursive cases. Like pattern matching rules(Param1, Param2) :- ( A -> B, C, D, ( E -> F ; G, H ) ; I ). Edit: Edited my code to look like more what it should look 回答1: The general translation scheme for pred(X):- ( A -> B ; C -> D ; G ). pred(Y):- Q. is pred(X):- pred1(X).

问题 I try to write a program like a compiler. In this case I must simulate these codes of SQLPL (this one can be just for example). For example in command prompt I want to do these: c:\> sqlplus .... Enter User-Name:(here we must enter username) xxxx Enter password:(same up)yyyyy ... sql>(now I want to send my sql command to shell)prompt "rima"; "rima" [<-output] sql> prompt "xxxx" sql> exit very simple. I try to use this code: ProcessStartInfo psi = new ProcessStartInfo( @"sqlplus"); psi

问题 I have a system of ODE equations which I want to solve, but there is a tricky part that when the system reaches steady-state, I would like to change the value of one (or more) parameters. For example, consider the following: function dydt = diff(t,x,params) F = params(1); G = params(2); dydt = zeros(2,1); dydt(1) = F*x(1) - G*x(1)*x(2); dydt(2) = (F-G)*x(2); end I would like my code to work such that when the system has reached steady-state, the value of F is changed to 10 and the value of G