How to find the difference wrt previous value in list vector

0 votes
How to find the difference wrt previous value in list/vector?
Oct 16, 2019 in Data Analytics by ch
 • 3,450 points • 625 views

1 answer to this question.

0 votes

diff() function returns the difference between numbers in a vector.

Ex:

> l = c(1,6,1,8,2,9,5,2,7,3)
> diff(l)
[1]  5 -5  7 -6  7 -4 -3  5 -4
answered Oct 16, 2019 by Cherukuri
 • 33,030 points

Related Questions In Data Analytics

0 votes
1 answer

How to access the last value from a vector in R?

Hi@akhtar, You can use the tail function in ...READ MORE

answered Oct 30, 2020 in Data Analytics by MD
 • 95,460 points • 1,434 views
0 votes
1 answer

How to find out the sum/mean for multiple variables per group in R?

You can use the reshape2 package for ...READ MORE

answered Apr 12, 2018 in Data Analytics by DataKing99
 • 8,250 points • 3,824 views
0 votes
1 answer

What is the difference between [] and [[]] notations to access the elements of a list or dataframe in R?

R provides 3 basic indexing operators. Refer ...READ MORE

answered Apr 12, 2018 in Data Analytics by kappa3010
 • 2,090 points • 2,958 views
0 votes
1 answer

How to find out the package version which is loaded in R?

You can use sessionInfo() to accomplish that. > ...READ MORE

answered Apr 18, 2018 in Data Analytics by zombie
 • 3,790 points • 776 views
0 votes
1 answer

By using dpylr package sum of multiple columns

Basically here we are making an equation ...READ MORE

answered Apr 5, 2018 in Data Analytics by DeepCoder786
 • 1,720 points • 2,250 views
0 votes
1 answer

How to convert a text mining termDocumentMatrix into excel or csv in R?

By assuming that all the values are ...READ MORE

answered Apr 5, 2018 in Data Analytics by DeepCoder786
 • 1,720 points • 1,919 views
0 votes
1 answer

In a dpylr pipline how to use sample and seq?

For avoiding rowwise(), I prefer to use ...READ MORE

answered Apr 6, 2018 in Data Analytics by DeepCoder786
 • 1,720 points
edited Jun 9, 2020 by Gitika • 1,182 views
0 votes
1 answer

How to create a list of Data frames?

Basically all we have to do is ...READ MORE

answered Apr 9, 2018 in Data Analytics by DeepCoder786
 • 1,720 points • 1,339 views
+1 vote
2 answers

How to count the number of elements with the values in a vector?

Use dplyr function group_by(). > n = as.data.frame(num) > ...READ MORE

answered Aug 21, 2019 in Data Analytics by anonymous
 • 33,030 points • 5,019 views
+1 vote
3 answers

How to change the value of a variable using R programming in a data frame?

Try this: df$symbol <- as.character(df$symbol) df$symbol[df$sym ...READ MORE

answered Jan 11, 2019 in Data Analytics by Tyrion anex
 • 8,700 points • 35,823 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP
"PMP®","PMI®", "PMI-ACP®" and "PMBOK®" are registered marks of the Project Management Institute, Inc. MongoDB®, Mongo and the leaf logo are the registered trademarks of MongoDB, Inc.