csv

问题 I have been using pandas on csv files to get some values out of them. My data looks like this: "A",23.495,41.995,"this is a sentence with some words" "B",52.243,0.118,"More text but contains WORD1" "A",119.142,-58.289,"Also contains WORD1" "B",423.2535,292.3958,"Doesn't contain anything of interest" "C",12.413,18.494,"This string contains WORD2" I have a simple script to read the csv and create the frequencies of WORD by group so the output is like: group freqW1 freqW2 A 1 0 B 1 0 C 0 1 Then

问题 I have been using pandas on csv files to get some values out of them. My data looks like this: "A",23.495,41.995,"this is a sentence with some words" "B",52.243,0.118,"More text but contains WORD1" "A",119.142,-58.289,"Also contains WORD1" "B",423.2535,292.3958,"Doesn't contain anything of interest" "C",12.413,18.494,"This string contains WORD2" I have a simple script to read the csv and create the frequencies of WORD by group so the output is like: group freqW1 freqW2 A 1 0 B 1 0 C 0 1 Then

问题 I am trying to create a CSV of data from a MySQL RDB to move it over to Amazon Redshift. However, one of the fields contains descriptions and some of those descriptions contain the '’' character, or the right single quotation mark. before when I would run the code, it would give me UnicodeEncodeError: 'charmap' codec can't encode character '\x92' in position 62: character maps to <undefined> I then tried using REPLACE to attempt to get rid of the right single quotation marks. db = pymysql

问题 I posted the code below to the Sun developers forum since I thought it was erroring (the true error was before this code was even hit). One of the responses I got said it would not work and to throw it away. But it is actually working. It might not be the best code (I am new to Java) but is there something inherently "wrong" with it? ============= CODE: private static void ImportFromCsvToAccessTable(String mdbFilePath, String accessTableName , String csvDirPath , String csvFileName ) throws

问题 I posted the code below to the Sun developers forum since I thought it was erroring (the true error was before this code was even hit). One of the responses I got said it would not work and to throw it away. But it is actually working. It might not be the best code (I am new to Java) but is there something inherently "wrong" with it? ============= CODE: private static void ImportFromCsvToAccessTable(String mdbFilePath, String accessTableName , String csvDirPath , String csvFileName ) throws

问题 I want to use the python CSV reader but I want to leave the quotes in. That is I want: >>> s = '"simple|split"|test' >>> reader = csv.reader([s], delimiter='|', skipinitialspace=True) >>> reader.next() ['"simple|split"', 'test'] But I actually get: ['simple|split', 'test'] In my case I want the quoted string to be passed on still quoted. I know the CSV reader is working as intended and my use case is an abuse of it, but is there some way to bend it to my will? Or do I have to write my own

问题 I want to use the python CSV reader but I want to leave the quotes in. That is I want: >>> s = '"simple|split"|test' >>> reader = csv.reader([s], delimiter='|', skipinitialspace=True) >>> reader.next() ['"simple|split"', 'test'] But I actually get: ['simple|split', 'test'] In my case I want the quoted string to be passed on still quoted. I know the CSV reader is working as intended and my use case is an abuse of it, but is there some way to bend it to my will? Or do I have to write my own

问题 I'm using python 3 in jupyter notebook. The problem is that it can't read the csv file. The command to read the csv file i have used is: import pandas as pd df = pd.read_csv("py.csv") df I have tried a lot of other ways too, but every time it says that , file is not found although the csv file in my pc. FileNotFoundError Traceback (most recent call last) <ipython-input-4-cc06427474dd> in <module>() 1 import pandas as pd 2 ----> 3 df = pd.read_csv("py.csv") 4 df ~/anaconda/lib/python3.6/site

问题 I wanted to create a program to convert CSV files to DXF(AutoCAD), but the CSV file sometimes comes with a header and sometimes no and there are cells that cannot be empty such as coordinates, and I also noticed that after excluding some of the inputs the value is nan or NaN and it was necessary to get rid of them so I offer you my answer and please share your opinions to implement a better method. sample input output 回答1: solution import string import pandas def pandas_clean_csv(csv_file): "

问题 I wanted to create a program to convert CSV files to DXF(AutoCAD), but the CSV file sometimes comes with a header and sometimes no and there are cells that cannot be empty such as coordinates, and I also noticed that after excluding some of the inputs the value is nan or NaN and it was necessary to get rid of them so I offer you my answer and please share your opinions to implement a better method. sample input output 回答1: solution import string import pandas def pandas_clean_csv(csv_file): "