csv

问题 As shown in the picture " Before " below, each column separated by comma is not aligned neatedly. Is there any method to align each column vertically like the display effect in Excel? The effect I wish is shown in the picture " After ". Thanks to @Martin S , I can align the file like the picture " Method_1 ". As he has mentioned, some characters still cannot align well. I was wondering if this method could be improved? 回答1: You can use the TextFX plugin: Edit > Line Up multiple lines by ...

问题 As shown in the picture " Before " below, each column separated by comma is not aligned neatedly. Is there any method to align each column vertically like the display effect in Excel? The effect I wish is shown in the picture " After ". Thanks to @Martin S , I can align the file like the picture " Method_1 ". As he has mentioned, some characters still cannot align well. I was wondering if this method could be improved? 回答1: You can use the TextFX plugin: Edit > Line Up multiple lines by ...

问题 I've got two lists of tuples of the form: playerinfo = [(ansonca01,4,1871,1,RC1),(forceda01,44,1871,1,WS3),(mathebo01,68,1871,1,FW1)] idmatch = [(ansonca01,Anson,Cap,05/06/1871),(aaroh101,Aaron,Hank,04/13/1954),(aarot101,Aaron,Tommie,04/10/1962)] What I would like to know, is how could I iterate through both lists, and if the first element in a tuple from "playerinfo" matches the first element in a tuple from "idmatch", merge the matching tuples together to yield a new list of tuples? In the

问题 I've got two lists of tuples of the form: playerinfo = [(ansonca01,4,1871,1,RC1),(forceda01,44,1871,1,WS3),(mathebo01,68,1871,1,FW1)] idmatch = [(ansonca01,Anson,Cap,05/06/1871),(aaroh101,Aaron,Hank,04/13/1954),(aarot101,Aaron,Tommie,04/10/1962)] What I would like to know, is how could I iterate through both lists, and if the first element in a tuple from "playerinfo" matches the first element in a tuple from "idmatch", merge the matching tuples together to yield a new list of tuples? In the

问题 I'm trying to migrating some MySQL tables to Amazon Redshift, but met some problems. The steps are simple: 1. Dump the MySQL table to a csv file 2. Upload the csv file to S3 3. Copy the data file to RedShift Error occurs in step 3: The SQL command is: copy TABLE_A from 's3://ciphor/TABLE_A.csv' CREDENTIALS 'aws_access_key_id=xxxx;aws_secret_access_key=xxxx' delimiter ',' csv; The error info: An error occurred when executing the SQL command: copy TABLE_A from 's3://ciphor/TABLE_A.csv'

问题 This question already has answers here : Remove NA values from a vector (7 answers) Closed 4 years ago . Here is my csv file I'm using. my.xldataset <- read.csv('http://www.math.smith.edu/sasr/datasets/help.csv') Here's my attempt at finding the mean of column "mcs1". mean(my.xldataset$mcs1) All I'm getting in return is an "NA". Where exactly am I going wrong here? Thank you 回答1: It could be that there are NA values in the column, so use na.rm=TRUE mean(my.xldataset$mcs1, na.rm=TRUE) or it

问题 This question already has answers here : Remove NA values from a vector (7 answers) Closed 4 years ago . Here is my csv file I'm using. my.xldataset <- read.csv('http://www.math.smith.edu/sasr/datasets/help.csv') Here's my attempt at finding the mean of column "mcs1". mean(my.xldataset$mcs1) All I'm getting in return is an "NA". Where exactly am I going wrong here? Thank you 回答1: It could be that there are NA values in the column, so use na.rm=TRUE mean(my.xldataset$mcs1, na.rm=TRUE) or it

问题 I want to convert a csv file to xlsb. I use the second answer from this Convert XLS to CSV on command line, which is the code below: if WScript.Arguments.Count < 2 Then WScript.Echo "Please specify the source and the destination files. Usage: ExcelToCsv <xls/xlsx source file> <csv destination file>" Wscript.Quit End If csv_format = 6 Set objFSO = CreateObject("Scripting.FileSystemObject") src_file = objFSO.GetAbsolutePathName(Wscript.Arguments.Item(0)) dest_file = objFSO.GetAbsolutePathName

问题 I want to convert a csv file to xlsb. I use the second answer from this Convert XLS to CSV on command line, which is the code below: if WScript.Arguments.Count < 2 Then WScript.Echo "Please specify the source and the destination files. Usage: ExcelToCsv <xls/xlsx source file> <csv destination file>" Wscript.Quit End If csv_format = 6 Set objFSO = CreateObject("Scripting.FileSystemObject") src_file = objFSO.GetAbsolutePathName(Wscript.Arguments.Item(0)) dest_file = objFSO.GetAbsolutePathName

问题 I'm creating a job that will read and process different .csv files based on an input parameter. There are 3 different types of .csv files with different headers. I want to map each line of a file to a POJO using a generic FlatFileItemReader . Each type of file will have its own POJO implementation, and all "File Specific POJOs" are subclassed from an abstract GenericFilePOJO . A tasklet will first read the input parameter to decide which file type needs to be read, and construct a