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Import ASCII file into R

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问题 I have several ASCII files I Need to Import into R with return data for different asset classes. The structure of the ASCII files is as follows (with 2 sample data) How can I Import this? I wasn't succesfull with read.table, but I would like to have it in a data.frame Format. <Security Name> <Ticker> <Per> <Date> <Close> Test Description,Test,D,19700101,1.0000 Test Description,Test,D,19700102,1.5 回答1: If you really want to force the column names into R, you could use something like that: #

Import ASCII file into R

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Caesar Cipher Python - Additional Features

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问题 So currently, my code looks like this (thanks to help in another post I made) phrase = raw_input("Enter text to Cipher: ") shift = int(raw_input("Please enter shift: ")) result = ("Encrypted text is: ") for character in phrase: #Loops through phrase and shows ascii numbers, example: hello is: 104,101,108,108,111 x = ord(character) #adds a shift to each character so if shift is 1 'hello' becomes: ifmmp 105,102,109,109,112 result += chr(x + shift) print "\n",result,"\n" The problem is, if I

sqlite remove non utf-8 characters

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问题 I have an sqlite db that has some crazy ascii characters in it and I would like to remove them, but I have no idea how to go about doing it. I googled some stuff and found some people saying to use REGEXP with mysql, but that threw an error saying REGEXP wasn't recognized. Here is the error I get: sqlalchemy.exc.OperationalError: (OperationalError) Could not decode to UTF-8 column 'table_name' with text ... Thanks for the help 回答1: Well, if you really want to shoehorn a rich unicode string

【转】python中文decode和encode转码

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【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 字符串在Python内部的表示是unicode编码，因此，在做编码转换时，通常需要以unicode作为中间编码，即先将其他编码的字符串解码（decode）成unicode，再从unicode编码（encode）成另一种编码。 decode的作用是将其他编码的字符串转换成unicode编码，如str1.decode('gb2312')，表示将gb2312编码的字符串str1转换成unicode编码。 encode的作用是将unicode编码转换成其他编码的字符串，如str2.encode('gb2312')，表示将unicode编码的字符串str2转换成gb2312编码。因此，转码的时候一定要先搞明白，字符串str是什么编码，然后decode成unicode，然后再encode成其他编码（与代码本身的编码是一致的！）测试：我的eclipse里面代码为utf-8编码的。然后我这样写代码 s="你好" s=s.decode('gb2312').encode('utf-8') print s 报错： UnicodeDecodeError: 'gb2312' codec can't decode bytes in position 2-3: illegal multibyte sequence 原因

PHP Library That Generates ASCII Art Text [closed]

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问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 3 years ago . I'm trying to make a captcha system that isn't the same as all the others using ASCII art text. Similar to what can be found here. Does anyone know of a library which can generate something similar? 回答1: The ASCII generator you linked to use the figlet program on the commandline, for example with shell_exec.

Escape Regex Newline

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问题 How would I make a \n match in regex? I want the actual two ASCII values 92 and 110 to be matched (as a string). I'm using preg from PHP Thanks 回答1: You can either escape the first slash: \\n Or wrap the first slash in []: [\]n 回答2: if you don't want to match a real linebreak but a string (with two characters) like '\n' then you just have to escape the backslash with another one \\n so that it will not be recognized as linebreak. But most programming languages are a bit different when it

How can I write a null ASCII character (nul) to a file with a Windows batch script?

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问题 I'm attempting to write an ASCII null character (nul) to a file from a Windows batch script without success. I initially tried using echo like this: echo <Alt+2+5+6> which seems like it should work (typing <Alt+2+5+6> in the command window does write a null character - or ^@ as it appears), but echo then outputs: More? and hangs until I press <Return> . As an alternative I tried using: copy con tmp.txt >nul <Alt+2+5+6><Ctrl+Z> which does exactly what I need, but only if I type it manually in

小知识

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记载平时碰倒的小知识，不定时更新。 ASCII编码中，大写+32=小写，按%d输出就可以知道ASCII数值。 printf输出是，/n是转行，/t是相当于你在编程的时候按一下“Table”键，使光标以8个字符为基准进行跳跃，跳到下一个TAB位置。（/加某些ASCII字符用来表示ASCII不能表示的字符，即转义字符。） printf输出%7.2f，表示输出的域宽是7，小数保留2位。 float型数据只能保证6~7位有效数字，如果有效数字超过7位，那么从第7位数字以后的数字并不保证是绝对正确的。注：有问题，欢迎指正。来源： https://www.cnblogs.com/banxia20191109/p/12117219.html

What's the opposite of chr() in Ruby?

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问题 In many languages there's a pair of functions, chr() and ord() , which convert between numbers and character values. In some languages, ord() is called asc() . Ruby has Integer#chr , which works great: >> 65.chr A Fair enough. But how do you go the other way? "A".each_byte do |byte| puts byte end prints: 65 and that's pretty close to what I want. But I'd really rather avoid a loop -- I'm looking for something short enough to be readable when declaring a const . 回答1: If String#ord didn't exist