How to accumulate values in a column and add the new earned value in a new column in R?

Question

I have a data file looks like:

151
24
234
100
200
10
100
23
1
 ...

I want to have a new column in which each value in it is accumulated with previous value. For example -151+0=151 , 24+151=175 , 234+175=409 so: output:

151
175
409
509
709
719
819
842
843
...

any suggestion please?

Answer 1

look at the TTR package.

    library(TTR)
    x=c(151,24,234,100,200,10,100,23,1)
    y=runSum(x,n=2,cumulative=TRUE)
    y

Answer 2

 x <- c(151,24,234,100,200,10,100,23,1)
cumsum(x)

output:: [1] 151 175 409 509 709 719 819 842 843

This gave me the output as you want. Might help.