formatting

问题 I have a nested list containing numbers, for example x <- list(1 + .Machine$double.eps, list(rnorm(2), list(rnorm(1)))) If I call as.character on this, all the numbers are given in fixed format, to 15 significant digits. as.character(x) ## [1] "1" ## [2] "list(c(0.654345721043012, 0.611306113713901), list(-0.278722330674071))" I'd like to be able to control how the numbers are formatted. At the very least, I'd like to be able to control how many significant figures are included. As a bonus,

问题 I have a nested list containing numbers, for example x <- list(1 + .Machine$double.eps, list(rnorm(2), list(rnorm(1)))) If I call as.character on this, all the numbers are given in fixed format, to 15 significant digits. as.character(x) ## [1] "1" ## [2] "list(c(0.654345721043012, 0.611306113713901), list(-0.278722330674071))" I'd like to be able to control how the numbers are formatted. At the very least, I'd like to be able to control how many significant figures are included. As a bonus,

问题 I have created a pdf template with 'open office writer' and filled the fields with iText. In pseudo code like this: PdfReader reader = new PdfReader("C:/temp/Template.pdf"); FileOutputStream fileOutputStream = new FileOutputStream("C:/temp/TemplateTest.pdf"); PdfStamper stamper = new PdfStamper(reader, fileOutputStream); stamper.setFormFlattening(true); stamper.getAcroFields().setField("description", "This is a important description."); stamper.close(); Now I just want the word 'important' in

问题 I'm working on a powershell script in which several commands output are shown in the window and appended to a file or a variable. It worked correctly until I used the sfc command. When piped or redirected, the output is "broken": > sfc /? Vérificateur de ressources Microsoft (R) Windows (R) version 6.0[...] > sfc /? | Tee-Object -Variable content V Ú r i f i c a t e u r d e r e s s o u r c e s M i c r o s o f t ( R ) W i n d o w s ( R ) v e r s i o á 6 . 0[...] Are there other commands like

问题 How can I remove the string "Array" in the printout from print_r() ? I have tried using string replace, but it didn't work. Example output: Array ( [0] => Array ( [id] => Classify318721363801824 [classification] => Array ( [0] => Array ( [Klasifikasi] => NonOpini [Nilai] => 0.999946 ) [1] => Array ( [Klasifikasi] => Opini [Nilai] => 5.43418e-005 ) ) 回答1: Set return flag (secont func arg) at TRUE for print_r() function to return array print as string, than replace whatever you want using str

问题 I want to left justify the right part of a string. I am writing an IRC Bot's HELP command and I want the description to be left justified at the same width throughout: List of commands: ## ! Say a Text ## execute Execute an IRC command ## help Help for commands ljust works for a whole string, but how do I do this on a part of a string only? This is my current code for generating the string: format.color( "## ", format.LIME_GREEN ) + self.commands[ cmd ][1].__doc__.format( format.bold( cmd ) )

问题 I want to left justify the right part of a string. I am writing an IRC Bot's HELP command and I want the description to be left justified at the same width throughout: List of commands: ## ! Say a Text ## execute Execute an IRC command ## help Help for commands ljust works for a whole string, but how do I do this on a part of a string only? This is my current code for generating the string: format.color( "## ", format.LIME_GREEN ) + self.commands[ cmd ][1].__doc__.format( format.bold( cmd ) )

问题 Its late and I have been trying to work on a simple script to rename point cloud data to a working format. I dont know what im doing wrong as the code at the bottom works fine. Why doesnt the code in the for loop work? It is adding it to the list but its just not getting formatted by the replace function. Sorry I know this isnt a debugger but I am really stuck on this and it would probably take 2 seconds for someone else to see the problem. # Opening and Loading the text file then sticking

问题 Its late and I have been trying to work on a simple script to rename point cloud data to a working format. I dont know what im doing wrong as the code at the bottom works fine. Why doesnt the code in the for loop work? It is adding it to the list but its just not getting formatted by the replace function. Sorry I know this isnt a debugger but I am really stuck on this and it would probably take 2 seconds for someone else to see the problem. # Opening and Loading the text file then sticking

问题 Um, probably a really simple question, but I just noticed that I have no idea on how to convert DateTime.Now to the format YYMMDD, so for example today (5. November 2009) would be "091105". I know there are overloads to DateTime.Now.ToString() where you can pass in a format string, but I have not found the right format e.g. for short year format (09 instead of 2009). 回答1: DateTime.Now.ToString("yyMMdd") You may also find the following two posts on MSDN useful as they contain a lot of info