maxlength

问题 We have time series data in which repeated observations were measured for several subjects. I would like to calculate the number of occasions in which the variable positive == 1 occurs for each subject (variable id ). A second aim is to identify the maximum length of these runs of consecutive observations in which positive == 1 . For each subject there are likely to be multiple runs within the study period. Rather than calculating the maximum number of consecutive positive observations per

问题 How can I limit the length of a string matching a RegEx I assumed that var sixCharsRegEx = /^.{6,7}/ would only match strings of lengths 6 or 7 but no: http://jsfiddle.net/FEXbB/ What am I missing? 回答1: You are missing closing dollar at the end. Correct one is: /^.{6,7}$/ 回答2: Match the start and the end. var sixCharsRegEx = /^.{6,7}$/; Your improved example 回答3: you must use end of string symbol $ like this ^.{6,7}$ 回答4: You are missing the end anchor: var sixCharsRegEx = /^.{6,7}$/ 来源：

问题 I would like to limit the number of decimals when a data frame is imported. My .txt input have 16 decimals to each row in collumn "Value". My dataframe look like that: Value 0.202021561664556 0.202021561664556 0.202021561664556 0.202021561664556 ... My expected dataframe Value 0.20202156 0.20202156 0.20202156 0.20202156 ... Real input (DF) that not works: DF <- "NE001358.Log.R.Ratio -0.0970369274475688 0.131893549586039 0.0629266495860389 0.299559132381831 -0.0128804337656807 0

问题 This question already has answers here : Limiting characters and character length in textField(_:shouldChangeCharactersInRange:replacementString:) (2 answers) Closed 13 days ago . I want to create a max length to my textfield with IBInspectable , I see a answer to this on a question here but I'm getting an error saying Expression type '()' is ambiguous without more context , My code was import UIKit private var __maxLengths = [UITextField: Int]() extension UITextField { @IBInspectable var

问题 I have a textarea with the attribute maxlength set to 350 & it works fine, it also counts enter/line break as a character. I also have to show a error message if user try to type more than or reaches to 350 character limit for which I am using this code: $("textarea").keyup(function (e) { if($(this).val().length >=350){ $('.error').show(); }else{ $('.error').hide(); } }); It works but in chrome it doesn't count enter/line break but maxlength does as a result if a user is breaking text in

问题 today I started wondering about something in the MSDN. This article demonstrates, how one can increase the memory allocatable by an array under .NET 4.5 and x64. This is a nice feature, but something in the description provided by Microsoft baffeles me. Under the section "Remarks" they say, that: The maximum index in any single dimension is 2,147,483,591 (0x7FFFFFC7) for byte arrays and arrays of single-byte structures, and 2,146,435,071 (0X7FEFFFFF) for other types. Since I mainly have int[]

问题 today I started wondering about something in the MSDN. This article demonstrates, how one can increase the memory allocatable by an array under .NET 4.5 and x64. This is a nice feature, but something in the description provided by Microsoft baffeles me. Under the section "Remarks" they say, that: The maximum index in any single dimension is 2,147,483,591 (0x7FFFFFC7) for byte arrays and arrays of single-byte structures, and 2,146,435,071 (0X7FEFFFFF) for other types. Since I mainly have int[]

问题 today I started wondering about something in the MSDN. This article demonstrates, how one can increase the memory allocatable by an array under .NET 4.5 and x64. This is a nice feature, but something in the description provided by Microsoft baffeles me. Under the section "Remarks" they say, that: The maximum index in any single dimension is 2,147,483,591 (0x7FFFFFC7) for byte arrays and arrays of single-byte structures, and 2,146,435,071 (0X7FEFFFFF) for other types. Since I mainly have int[]

问题 I try to compile a big pattern with re.compile in Python 3. The pattern I try to compile is composed of 500 small words (I want to remove them from a text). The problem is that it stops the pattern after about 18 words Python doesn't raise any error. What I do is: stoplist = map(lambda s: "\\b" + s + "\\b", stoplist) stopstring = '|'.join(stoplist) stopword_pattern = re.compile(stopstring) The stopstring is ok (all the words are in) but the pattern is much shorter. It even stops in the middle

问题 What's the maximum allowed length for MyKey and MyValue in a configuration file? <configuration> <appSettings> <add key="MyKey" value="MyValue" /> </appSettings> </configuration> 回答1: As per knowledge there is no limitation the key value pair in webconfig file ..... if you are planning to add object to config file check this post will help you to achieve your task How to store custom objects in web.config ? 来源： https://stackoverflow.com/questions/6382758/max-key-value-length-in-application