大约有 2,500 项符合查询结果（耗时：0.0340秒） [XML]
How to read data when some numbers contain commas as thousand separator?
I have a csv file where some of the numerical values are expressed as strings with commas as thousand separator, e.g. "1,513" instead of 1513 . What is the simplest way to read the data into R?
...
How to read a text file into a list or an array with Python
...ould be so much traction to this. Here's a more idiomatic approach.
import csv
with open('filename.csv', 'r') as fd:
reader = csv.reader(fd)
for row in reader:
# do something
share
|
...
Concatenate text files with Windows command line, dropping leading lines
...
I use this, and it works well for me:
TYPE \\Server\Share\Folder\*.csv >> C:\Folder\ConcatenatedFile.csv
Of course, before every run, you have to DELETE C:\Folder\ConcatenatedFile.csv
The only issue is that if all files have headers, then it will be repeated in all files.
...
MySQL load NULL values from CSV data
...lly like this answer. Users can see empty strings '' when they download a csv (using IFNULL(Col,'') in SELECT INTO OUTFILE query) for excel but then uploads accept them as null vs having to deal with \N in the csv. Thanks!
– chrisan
Sep 29 '13 at 15:47
...
Properly escape a double quote in CSV
I have a line like this in my CSV:
4 Answers
4
...
Writing to an Excel spreadsheet
...ges available (xlwt, XlsXcessive, openpyxl). Others suggest to write to a .csv file (never used CSV and don't really understand what it is).
...
How to store a dataframe using Pandas
Right now I'm importing a fairly large CSV as a dataframe every time I run the script. Is there a good solution for keeping that dataframe constantly available in between runs so I don't have to spend all that time waiting for the script to run?
...
cannot download, $GOPATH not set
I want to install json2csv using go get github.com/jehiah/json2csv but I receive this error:
15 Answers
...
How to create CSV Excel file C#? [closed]
I'm looking for a class for creating CSV Excel files.
13 Answers
13
...
invalid byte sequence for encoding “UTF8”
... to help others and the search engines: this works for converting a Stripe CSV export with unreadable characters back into UTF-8: ` iconv -f ISO-8859-15 -t utf-8 customers.csv > customers-utf8.csv`
– sscarduzio
Nov 27 '17 at 21:49
...