tokenize

问题 I wish to read a csv file which has the following format using pandas: atrrth sfkjbgksjg airuqghlerig Name Roll airuqgorqowi awlrkgjabgwl AAA 67 BBB 55 CCC 07 As you can see, if I use pd.read_csv , I get the fairly obvious error: ParserError: Error tokenizing data. C error: Expected 1 fields in line 4, saw 2 But I wish to get the entire data into a dataframe. Using error_bad_lines = False will remove the important stuff and leave only the garbage values These are the 2 of the possible column

问题 I wish to read a csv file which has the following format using pandas: atrrth sfkjbgksjg airuqghlerig Name Roll airuqgorqowi awlrkgjabgwl AAA 67 BBB 55 CCC 07 As you can see, if I use pd.read_csv , I get the fairly obvious error: ParserError: Error tokenizing data. C error: Expected 1 fields in line 4, saw 2 But I wish to get the entire data into a dataframe. Using error_bad_lines = False will remove the important stuff and leave only the garbage values These are the 2 of the possible column

问题 Is there built-in function in Oracle DB 11g r2 that could parse varchar2 variable to table? Opposite of listagg or wm_concat . I found only Tom Kyte 's method dated 2006: with data as ( select trim(substr (txt, instr(txt, ',', 1, level) + 1 , instr(txt, ',', 1, level + 1) - instr(txt, ',', 1, level) - 1)) as token from (select ',' || :txt || ',' txt from dual) connect by level <= length(:txt) - length(replace(:txt, ',', '')) + 1 ) select * from data; I think Oracle must have simpler way. 回答1:

问题 I need help, obviously. Our assignment is to retrieve a file and categorize it and display it in another file. Last name first name then grade. I am having trouble with getting a loop going because of the error "java.util.NoSuchElementException" This only happens when I change the currently existing while I loop I have. I also have a problem of displaying the result. The result I display is all in one line, which I can't let happen. We are not allowed to use arraylist, just Bufferedreader,

问题 Is there a direct efficient way to convert std::sub_match to std::basic_string_view (without constructing an intermediate std::basic_string and without intermediate heap allocation)? Or one abstraction level further, is there an alternative to std::regex_token_iterator for iterating regex submatches represented as std::basic_string_view instead of std::sub_match using the std (C++17)? The reasons why I rather like to use std::basic_string_view over std::sub_match are: std::basic_string_view

问题 I'm pretty new to C++ and was looking for a good way to pull the data out of this line. A sample line that I might need to tokenise is f 11/65/11 16/70/16 17/69/17 I have a tokenisation method that splits strings into a vector as delimited by a string which may be useful static void Tokenise(const string& str, vector<string>& tokens, const string& delimiters = " ") The only way I can think of doing it is to tokenise with " " as a delimiter, remove the first item from the resulting vector,

问题 I have blocks of text I want to tokenize, but I don't want to tokenize on whitespace and punctuation, as seems to be the standard with tools like NLTK. There are particular phrases that I want to be tokenized as a single token, instead of the regular tokenization. For example, given the sentence "The West Wing is an American television serial drama created by Aaron Sorkin that was originally broadcast on NBC from September 22, 1999 to May 14, 2006," and adding the phrase to the tokenizer "the

问题 I want to create custom tokenizer for @ like as whatspp feature(when open group and write @ then open popup for list and user can select any.also user can remove that string of @ . I have search lots of things.but i have found twitter like search feature Example like twitter, but in this,when user can write @ then do not show popup window of list. user can write soemthing after @ then based on typing ,popup window will show search result. I want to show something like this: Thanks in advanced

问题 I would like to tokenize a string that consists of integers,floats, operators, functions, variables and parentheses. The following example should brighten the essence of problem: Current state: String infix = 4*x+5.2024*(Log(x,y)^z)-300.12 Desired state: String tokBuf[0]=4 String tokBuf[1]=* String tokBuf[2]=x String tokBuf[3]=+ String tokBuf[4]=5.2024 String tokBuf[5]=* String tokBuf[6]=( String tokBuf[7]=Log String tokBuf[8]=( String tokBuf[9]=x String tokBuf[10]=, String tokBuf[11]=y

问题 I would like to tokenize a string that consists of integers,floats, operators, functions, variables and parentheses. The following example should brighten the essence of problem: Current state: String infix = 4*x+5.2024*(Log(x,y)^z)-300.12 Desired state: String tokBuf[0]=4 String tokBuf[1]=* String tokBuf[2]=x String tokBuf[3]=+ String tokBuf[4]=5.2024 String tokBuf[5]=* String tokBuf[6]=( String tokBuf[7]=Log String tokBuf[8]=( String tokBuf[9]=x String tokBuf[10]=, String tokBuf[11]=y