csv

[Solved] Read in a csv file as a variable in python

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Here a bare code that should do what you are asking: import tkinter as tk from tkinter import filedialog from tkinter import simpledialog import pandas as pd root = tk.Tk() root.withdraw() path = filedialog.askopenfilename(parent=root, filetypes=[(“CSV Files”,”.csv”)]) col1 = simpledialog.askstring(“Input”, “Column 1″, parent=root, initialvalue=”col1”) col2 = simpledialog.askstring(“Input”, “Column 2″, parent=root, initialvalue=”col2”) df = pd.read_csv(path, usecols=[col1, col2]) … Read more

[Solved] Loop in R to get specific columns and the sum of the rest from different .csv files

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First put all files in a single folder. filenames <- list.files(pattern = “.csv”) all <- lapply(filenames, function(name) { readr:: read_csv(name) }) Based on your description the list should have a length of 300, each item containing a dataframe. If you want to bind the rows of all dataframes you can use dplyr’s bind_rows(). Below is … Read more

[Solved] Extract all pages from a Table

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To scrape all the pages, observe that trailing parameter in the url increments by 2, rather than 1. Thus, the code below finds the maximum page in the listing, multiples the latter result by 2, and utilizes the result as a range: import requests, re, contextlib from bs4 import BeautifulSoup as soup import csv @contextlib.contextmanager … Read more

[Solved] How can i create a file .csv?

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If you want to write the results in a file, move FILE *f = fopen(“test”, “w”); into your main() function (also check return value since the function can fail), if you want the file format to be csv then you should add the extension .csv so that other people know it has that format e.g. … Read more

[Solved] CSV IO python: converting a csv file into a list of lists

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in your data ‘2,2’ is one string. But csv reader can deal with this: import csv result = [] with open(“data”, ‘r’) as f: r = csv.reader(f, delimiter=”,”) # next(r, None) # skip the headers for row in r: result.append(row) print(result) [[“‘1′”, “‘2′”, “‘3′”], [“‘1”, “1′”, “‘2”, “2′”, “‘3”, ‘3’]] 3 solved CSV IO python: … Read more

[Solved] How to : Skip the Header record from one .csv and Copy the Records to another csv file using command prompt or batch [closed]

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Except the way Compo suggested (using more with +1 which will exclude the first line), you can use a for /F loop: @echo off for /F “skip=1 delims=” %%A IN (file.csv) do (echo %%A)>>file1.csv which, with the option skip=1 will skip the first line. Another way would be to loop through the output of more … Read more

[Solved] Unable to read from a CSV using List

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Your example will print something like “System.Collections.Generic.List’1[System.String]” This is because the Console.WriteLine() is expecting a string (which it may be receive using the object’s ToString() method) yet you pass it a List<> object whose ToString() method returns “System.Collections.Generic.List’1[System.String]”. Instead you need to retrieve each string from the list with a foreach loop and then print … Read more

[Solved] Process unstructured and multiple line CSV in hadoop

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Because you’re coping with multi-line data you cannot use a simple TextInputFormat to access your data. Thus you need to use a custom InputFormat for CSV files. Currently there is no built-in way of processing multi-line CSV files in Hadoop (see https://issues.apache.org/jira/browse/MAPREDUCE-2208), but luckily there’s come code on github you can try: https://github.com/mvallebr/CSVInputFormat. As far … Read more

[Solved] Regex returning True and False in the file

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Though I am not compleately sure what your question demands, but as far as i comphreanded it, True and False are being printed to your file, which is not the desired output? Well that’s because re.search returns a Match Object, For example: >>> search_string = ‘piiig’ >>> output = re.search(‘iii’, search_string) >>> output <_sre.SRE_Match object … Read more