r - How to read a csv but separating only at first two comma separators? -


I have a CSV file I want to read the file in R, but only use the first 2 commas, i.e. There is one such row in the file,

1,1000, I did it with you

Wants to do with three pillars 

  & gt; Df & lt; - data.frame ("id" = "1", "calculation" = "1000", "comment" = "I, done with you") & gt; DF ID comment 1 1 1000 I, with    
 
 
 regular expressions will be working.  
 For example, it seems that there are  str  lines that you want to recognize here that your CSV file appears  
  1, 1000, I, with you 2,500, I do not know   
 If you want to read from the file, just like the  str , the file as the character vector in R To read all the rows of, call  readLines () .  
 The technique is very simple I use the  {stringr}  package to match the text and the information I need is used to remove it.  
  str & lt; - c ("1,1000, I have done, with you", "2,500, I do not know") Library (stringer) # String pattern integer, integer, few matches and lieutenant; - Combine str_match (str, pattern = "(\\ d +), (\\), D +), \\ s * (. +)")   
 Here I summarize Pattern  (\\ d +), (\\ d +), \\ s * (. +) . Represents the  \\ d  number;  \\ s  displays the location character, .  represents anything  +  means one or more,  *  none or nothing  ()  grouping patterns So that the function knows what we believe as a group of information.  
 If you look at  matches , then it seems that "1" "1000" "I, has been done with you" "1," [1,]   
 look,  str_match     The / Code> function successfully divides the text into a pattern from a matrix, so our task is to replace the matrix with the correct data type with only the data form.  
  df <- data .frame (matches [, - 1], stringsfactor = f) colnames (df) (df, id = as.integer Ed), calculation = as.integer (calculation))      pre> 
  df  Our goal is:  
  ID count comment 1 1 1000 i, 2 2 1002 with you I do not know

Comments

Post a Comment

Popular posts from this blog

c - Mpirun hangs when mpi send and recieve is put in a loop -

I was trying to use the program to use mifrewan on 4 node clusters. Distributing node 0 data in nodes 1, 2 and 3. In the program, from '90 'to variable values ​​of' dior 'to be calculated. Therefore the node is distributing data and collecting results in an omitted fashion (for different values ​​of var 'dir') when do {*******} Whereas (dir Loop is given, Mippun is hanging, and no output is found. But when I comment on two {*******} (dir The loop output is obtained for the initial value of variable dir dir = -90 ), and that output is correct. The problem occurs when the loop is given. Can anyone help me in solving this problem. #include "mpi.h" int main (int argc, char * argv []) Float dir = -90; Int rank, nanoprakash; MPI_Status status; MPI_Init (& amp; argc, & argv); MPI_Comm_rank (MPI_COMM_WORLD, & amp; Rank); MPI_Comm_size (MPI_COMM_WORLD, & amp; numprocs); If (rank == 0) {/ / data to begin / / (dest = 1; dest ...
Read more

python - Apply coupon to a customer's subscription based on non-stripe related actions on the site -

I can not find anything in the source about using coupons after subscribing to a user's plan. Is it possible to use a coupon to credit a user's membership after initial subscription? If not, what is the best option? Specifically, I want to give a user 100% coupon for that month, when they take 5 [site specific actions]. This is possible, but may not be the best idea. Coupons are currently applied to the stripe, then apply again at the customer level and each client can have a single coupon. So if you are already offering discounts to the coupon, then the customer who is currently in the present will also give up. It also means that if you are using a recently-added multiple subscription capacity, then all of the user's subscription will be ready for the month. Coupons can be set to "Once", only once (as the only name) can be used by any customer, so if this credit can earn more than once, You will have to maintain a 100% discount coupon continuousl...
Read more

java - Unable to get JDBC connection in Spring application to MySQL -

मैंने स्प्रिंग में डीबी कॉन्फ़िगरेशन का पालन किया है: & lt; bean id = "dataSource" Class = "org.apache.commons.dbcp.BasicDataSource" नष्ट-विधि = "बंद" & gt; & Lt; प्रॉपर्टी नाम = "url" मान = "jdbc: dburl" / & gt; & Lt; संपत्ति नाम = "driverClassName" मान = "com.mysql.jdbc.Driver" / & gt; & Lt; संपत्ति नाम = "उपयोगकर्ता नाम" मान = "उपयोगकर्ता नाम" / & gt; & Lt; संपत्ति नाम = "पासवर्ड" मान = "पासवॉर्फ" / & gt; & Lt; प्रॉपर्टी नाम = "हटाए गए हटाए गए" मान = "सही" / & gt; & Lt; गुण नाम = "प्रारंभिक आकार" मान = "3" / & gt; & Lt; संपत्ति नाम = "अधिकतमअक्टिव" मान = "5" / & gt; & Lt; / सेम ​​& gt; डीबी से गुण मूल्यों को लोड करने के लिए अतिरिक्त कॉन्फ़िगरेशन। & lt; bean id = "config1" class = "org.apache.commons.configuration....
Read more