import-from-csv

Is there any option to preserve line breaks within quotation marks when reading multiline CSV files in Spark?

由 大城市里の小女人 提交于 2019-12-08 10:53:52
问题 I have some CSV file with line break within quotation marks in third line (first line is CSV header). data/testdata.csv "id", "description" "1", "some description" "2", "other description with line break" Regardless if its correct CSV or not, I must parse it into valid records. That's what I tried public class Main2 { public static void main(String[] args) { SparkSession spark = SparkSession.builder() .master("local[4]") .getOrCreate(); Dataset<Row> rows = spark .read() .format("csv") .option

How to Specify Columns when a user chooses a file to upload in R?

由 徘徊边缘 提交于 2019-12-07 22:34:49
问题 I am writing an R file which prompts a user to upload a file and plots the data in the file the user uploads. I do not know how to reference the columns however (I am trying to use ggplot2) in my code. The data the user will upload will be a CSV file that would look something like, but can vary: January February March April May Burgers 4 5 3 5 2 I am stuck at the ggplot2 part where I need to reference column names. server.R library(shiny) library(datasets) library(ggplot2) X <- read.csv(file

Warning message: In file(file, “rt”) [duplicate]

由 血红的双手。 提交于 2019-12-06 22:01:17
问题 This question already has answers here : 'Incomplete final line' warning when trying to read a .csv file into R (15 answers) Closed 6 years ago . I am trying to import CSV files to graph for a project . I'm using R 2.15.2 on a Mac OS X. The first way tried The script I'm trying to run to import the CSV file is this: group4 <- read.csv("XXXX.csv", header=T) But I keep getting this error message: Error in read.table(file = file, header = header, sep = sep, quote = quote, : object 'XXXXXX.csv'

Give row names to table in R

由 泄露秘密 提交于 2019-12-06 11:56:20
I have a CSV file which somewhat looks like this: I need to cluster "NoOffaces" and count how many datasets has 1 face, 2 face and so on. Here is what I did in R : data<-read.csv('test.csv') a<-table(data$NoOffaces) a #for printing a And here is the output: 0 1 2 3 4 5 6 7 8 9 10 14 15 19 448 375 104 33 16 7 4 2 2 3 1 3 1 1 But, I want to give name to the first two rows so that it looks somewhat like this Faces :0 1 2 3 4 5 6 7 8 9 10 14 15 19 Count :448 375 104 33 16 7 4 2 2 3 1 3 1 1 I am not able to name the rows, also how to access the each value in the column? I am a beginner in R , some

Script import local CSV in Google Spreadsheet

由 牧云@^-^@ 提交于 2019-12-06 06:04:27
问题 How do I import a CSV file from local hard drive in a Google Spreadsheet document I own? (I want to replicate via script the File-->Import command) 回答1: This is similar to wrong answer with the DocList, but instead of using DocsList you can get the data directly out of the blob, parse it and then import it into a spreadsheet. I've only give a brief outline: function doGet(e) { var app = UiApp.createApplication().setTitle("Upload CSV to Sheet"); var formContent = app.createVerticalPanel();

Script import local CSV in Google Spreadsheet

由 ◇◆丶佛笑我妖孽 提交于 2019-12-04 11:33:10
How do I import a CSV file from local hard drive in a Google Spreadsheet document I own? (I want to replicate via script the File-->Import command) This is similar to wrong answer with the DocList, but instead of using DocsList you can get the data directly out of the blob, parse it and then import it into a spreadsheet. I've only give a brief outline: function doGet(e) { var app = UiApp.createApplication().setTitle("Upload CSV to Sheet"); var formContent = app.createVerticalPanel(); formContent.add(app.createFileUpload().setName('thefile')); formContent.add(app.createSubmitButton('Start

using csvhelper (nuGET) with C# MVC to import CSV files

由 帅比萌擦擦* 提交于 2019-12-03 20:07:08
问题 http://csvhelper.com available via NuGet is used to read and write CSV files. CsvHelper allows you to read your CSV file directly into your custom class. As following was shown in a previous question var streamReader = // Create a reader to your CSV file. var csvReader = new CsvReader( streamReader ); List<MyCustomType> myData = csvReader.GetRecords<MyCustomType>(); CsvReader will automatically figure out how to match the property names based on the header row (this is configurable). It uses

Import gzipped data into Google Sheets

由 六月ゝ 毕业季﹏ 提交于 2019-12-03 19:40:46
问题 I am trying to fetch a gzip from a URL and import it automatically into a Google Sheets. The gzip contains one file of CSV data. I know I can import the CSV data into a Google Sheets but I would like to be able to cut out the step of me having to download the gzip and extract the file first before uploading it into a Google Sheets. So my queries: Is it possible to import a gzipped CSV file from a URL directly into a Google Sheets? If not, how would this be done with a Google Apps Script? 回答1:

Read csv data file in R

由 为君一笑 提交于 2019-12-02 16:50:11
问题 I am using read.table to read a data file. and got the following error: Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : scan() expected 'a real', got 'true' I know that means there's some error in my data file, the problem is how can I find where is it. The error message did not tell which row has the issue, it's hard for me to find it. Or how can I skip these rows? Here's my R code: data<-read.csv("/home/jianfezhang/prod/conversion_yaap/data/part-r-00000", sep="

Finding Maximum Value in CSV File

由 时光毁灭记忆、已成空白 提交于 2019-12-02 12:55:08
Have an assignment of finding average and maximum rainfall in file " BoulderWeatherData.csv ". Have found the average using this code: rain = open("BoulderWeatherData.csv", "r") data = rain.readline() print(rain) data = rain.readlines() total = 0 linecounter = 0 for rain in data: linecounter = linecounter + 1 print("The number of lines is", linecounter) for line in data: r = line.split(",") total = total + float(r[4]) print(total) average = float(total / linecounter) print("The average rainfall is ", "%.2f" % average) However, can't seem to find maximum using this same process. Attempted using
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