Hi everyone

 

  I am trying to use grep in a for loop to compare a string value. It works
if I use the actual index value but when I use the for loop index, it
doesn't work. Any suggestions plz.

 

Here is the code:

 

data <- read.table(file="Sigmoid.csv", head=FALSE, sep=",");

 

c1 <- data$V1

c2 <- data$V2

c3 <- data$V3

 

c1data <- data.frame(c1);

c2data <- data.frame(c2);

c3data <- data.frame(c3);

 

#this works

p <- grep("QueryItem",c1data["147",],value=FALSE,fixed=FALSE)

print(p) # print 1

 

#doesn't work

i<-147

p1 <- grep("QueryItem",c1data["i",],value=FALSE,fixed=FALSE)

print(p1) # prints 0

 

for(i in 137:270) {

  print(i)

  p <- grep("QueryItem",c1data["i",],value=FALSE,fixed=FALSE)

  p2 <- p

  print(p2)

  if(length(p)>0) { print(p) }

}

 


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