loops

问题 I have a dataframe structured like the following: birthwt tobacco01 pscore pscoreblocks 3425 0 0.18 (0.177, 0.187] 3527 1 0.15 (0.158, 0.168] 1638 1 0.34 (0.335, 0.345] The birthwt column is a continuous variable measuring birth weight in grams. The tobacco01 column contains values of 0 or 1. The pscore column contains probability values between 0 and 1. The pscoreblocks takes the pscore column and breaks it down into 100 equally sized blocks. I am trying to find an efficient way to do the

问题 what I want to do here is loop until "x" is pressed. I am aware of CHOICE with the /T option. But CHOICE has too long of a timeout for a animation that I want to play. Here is a example : @echo off cls set frame=2 :loop cls type [%frame%].txt [Here is where it would test for the keystroke.If keystroke "x" is detected,goto MENU. If not pressed within a quick second,continue.] set /a frame=%frame%+1 goto loop note: The frames are for a animation,so do keep in mind that the timeout must be

问题 I am quite new to C but have a lot of experience in C#. My college instructor told me that in "pure" C, it is wrong to initialize the loop variable inside the loops parantheses. He said that it runs because of the VS compiler. For some reasons, all the material in the presentation also shows loops with their loop variable declared outside the parantheses. for (int i=0; i < 5; i++) { //He says that this is wrong, and you will lose points in tests for that } int i; for (i=0; i < 5; i++) { /

问题 I am quite new to C but have a lot of experience in C#. My college instructor told me that in "pure" C, it is wrong to initialize the loop variable inside the loops parantheses. He said that it runs because of the VS compiler. For some reasons, all the material in the presentation also shows loops with their loop variable declared outside the parantheses. for (int i=0; i < 5; i++) { //He says that this is wrong, and you will lose points in tests for that } int i; for (i=0; i < 5; i++) { /

问题 I have a JavaScript code that gets response from API and sets the values on google spreadsheet. The data that I get are users on a project that I need recorded to a sheet in spreadsheet. The only challenge that I need help is avoiding overwriting existing sheet data on subsequent loop, how can I handle this ? This first part gets project codes and uses it to make API call where the teams on all the projects are contained in a response. function readDates() { var ss = SpreadsheetApp

问题 Im going to create xml file. The element of the xml I pick from .ini file. I have .ini file more than 1. I try this, but still can create only 1 element. There are 2 kind of type content file in my .ini file. 1st. [Product] Name = NB A String = Defaults and Exit [Controller1] Desc = Embedded Intel RAID [Controller2] Desc = Intel Optane Device 2nd. [Product] Name = NB A String = Defaults and Exit [Controller1] Desc = Embedded SATA My expectation output of XML, will be there are 2 type. 1st.

问题 Im going to create xml file. The element of the xml I pick from .ini file. I have .ini file more than 1. I try this, but still can create only 1 element. There are 2 kind of type content file in my .ini file. 1st. [Product] Name = NB A String = Defaults and Exit [Controller1] Desc = Embedded Intel RAID [Controller2] Desc = Intel Optane Device 2nd. [Product] Name = NB A String = Defaults and Exit [Controller1] Desc = Embedded SATA My expectation output of XML, will be there are 2 type. 1st.

问题 Are there any nice ways to use while and repeat loops in Twig? It is such a simple task, but without macros I can't find anything nice and simple. At least do an infinite cycle and then break it in a condition? EDIT: I mean something like do { // loop code } while (condition) or while (condition) { // loop code } Edit 2: Looks like it is not supported natively by twig same reason as it is not supported neither continue; or break; statements. https://github.com/twigphp/Twig/issues/654 回答1: In

问题 Are there any nice ways to use while and repeat loops in Twig? It is such a simple task, but without macros I can't find anything nice and simple. At least do an infinite cycle and then break it in a condition? EDIT: I mean something like do { // loop code } while (condition) or while (condition) { // loop code } Edit 2: Looks like it is not supported natively by twig same reason as it is not supported neither continue; or break; statements. https://github.com/twigphp/Twig/issues/654 回答1: In

问题 So I'm running the code below in R Studio and getting this error: Error in UseMethod("tbl_vars") : no applicable method for 'tbl_vars' applied to an object of class "character" I don't know how to fix it cause there is no tbl_vars function! Can someone help? for (i in 1:ceiling(nrow(reviews)/batch)) { row_start <- i*batch-batch+1 row_end <- ifelse(i*batch < nrow(reviews), i*batch, nrow(reviews)) print(paste("Processing row", row_start, "to row", row_end)) reviews[row_start:row_end, ] %>%