loops

问题 I am currently making a program in vb.net. it has lots of Text box inside of it. how do i clear them using for each loop. I have here my code but nothing happens in my program, my text boxes still have data. For Each txt As TextBox In personalInfo.Controls txt.Enabled = False Next by the way i have three group boxes with text boxes how do i clear all of text boxes with this code. 回答1: Use txt.Clear(); for clearing a TextBox. Are you sure that all controls in personalInfo are TextBoxes? If not

问题 This question already has answers here : Python 'called with the wrong argument type' error (1 answer) Set properties of multiple QLineEdit using a loop (3 answers) Closed 9 months ago . Hi I have a GUI with 26 QPushButtons named A to Z, using uicload I load into my Main class is there any way to loop over them to end up with something self.A.clicked.connect(self.foo(A)) # .. self.Z.clicked.connect(self.foo(Z)) tried different ways but I end up always with either a syntax error or a

问题 Using R studio I would like to create a dynamic list using a loop. The loop is indexed by a and b, including another specification in the loop the structure is not anymore working and as result I get into the list only the last value. Below the code. Any suggestion? mylist <- list() vec_a <- c(1,2) vec_b <- c(5,6) for (a in vec_a) for (b in vec_b) { print(a) print(b) multp <- a*b print(multp) #mylist[i] <- multp } #solution not working for (a in vec_a) for (b in vec_b) for (i in 1:dim(expand

问题 I try to store the number of weekofyear from the list of data named date_range which stored the data such as date_range[1] = DatetimeIndex(['2020-03-02', '2020-03-03', '2020-03-04', '2020-03-05', '2020-03-06', '2020-03-07', '2020-03-08', '2020-03-09', '2020-03-10', '2020-03-11', '2020-03-12', '2020-03-13', '2020-03-14', '2020-03-15', '2020-03-16', '2020-03-17', '2020-03-18', '2020-03-19', '2020-03-20', '2020-03-21', '2020-03-22', '2020-03-23', '2020-03-24', '2020-03-25', '2020-03-26', '2020

问题 I know, similar questions were asked before, but the answer was not fully explained and / or the the solution didn't work for my case, so: How do you arrange several ggplots that created with a loop on one page? Searching for the answer, I found some that might have worked if each plot had its own name. For example, grid_arrange_shared_legend might be just what I need, but with the loop I created each plot is written over the previous. So maybe the question is: is there a way to give each

问题 Hi I’m starting to use r and am stuck on analyzing my data. I have a dataframe that has 80 columns. Column 1 is the dependent variable and from column 2 to 80 they are the independent variables. I want to perform 78 multiple linear regressions leaving the first independent variable of the model fixed (column 2) and create a list where I can to save all regressions to later be able to compare the models using AIC scores. how can i do it? Here is my loop data.frame for(i in 2:80) { Regressions

问题 I am trying to stop all running containers as a first step and then remove them. I know that I can do it using Anslible shell package and run this command: docker container stop $(docker container ls -aq) As a second step I can do the same with shell package and clean the dead containers / images / volumes: docker system prune -a -f --volumes I have tried something like this (sample of code): - name: Stop all containers: shell: "docker container stop $(docker container ls -aq)" ignore_errors:

问题 I am trying to stop all running containers as a first step and then remove them. I know that I can do it using Anslible shell package and run this command: docker container stop $(docker container ls -aq) As a second step I can do the same with shell package and clean the dead containers / images / volumes: docker system prune -a -f --volumes I have tried something like this (sample of code): - name: Stop all containers: shell: "docker container stop $(docker container ls -aq)" ignore_errors:

问题 What I have created so far I have created an 18x18 square matrix of zeros called ‘master_matrix’. I have created an array called ingreso_datos , whose column 0 [col 0] indicates the data label . I have created a for loop where: For each data label I will have a little_matrix whose values will be assigned to master_matrix in their corresponding rows and columns. As this happens inside a for loop, for this example I get 6 master_matrix (in my variable list only the last one is read, that is,

问题 I've been Googling and reading this site, and I know folks say that, in general, if you're iterating over a Dataframe, you're likely doing it wrong. So, I figure I'm doing it wrong. The challenge I'm presented with is that I need to make decisions on what to keep versus what to discard based on logic. Best explained with an example. Say my Dataframe looks like: SO_NUMBER ITEM # SALES_QTY PO_NUMBER PO_QTY PO_PRICE ENOUGH_TO_FILL -----------------------------------------------------------------