Trending questions in Data Analytics

0 votes
1 answer

Find length of string in R

You can try nchar > nchar("fast") [1] 4 > set.seed(10) > ...READ MORE

Apr 17, 2018 in Data Analytics by DataKing99
 • 8,250 points • 1,429 views
0 votes
1 answer

How to create an empty dataframe?

Initialize with empty vectors: data <- data.frame(Date=as.Date(character()), ...READ MORE

Apr 13, 2018 in Data Analytics by nirvana
 • 3,090 points • 1,562 views
0 votes
1 answer

How to replace NA with 0 using starts_with()

Well I could suggest various options such ...READ MORE

Apr 3, 2018 in Data Analytics by Sahiti
 • 6,370 points • 1,948 views
0 votes
1 answer

How to create a list of Data frames?

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

Apr 9, 2018 in Data Analytics by DeepCoder786
 • 1,720 points • 1,645 views
0 votes
1 answer

Selecting a sublist with purrr

Yes, purrr does provide a package called ...READ MORE

Apr 4, 2018 in Data Analytics by Bharani
 • 4,660 points • 1,830 views
0 votes
1 answer

How to use a function to repeat a set of procedures on specific set of columns in a data frame?

You can parse the strings to symbols. ...READ MORE

Apr 3, 2018 in Data Analytics by kappa3010
 • 2,090 points • 1,857 views
0 votes
1 answer

Concatenate 2 strings in R

You can use the paste() command: You can ...READ MORE

Apr 14, 2018 in Data Analytics by Sahiti
 • 6,370 points • 1,395 views
0 votes
1 answer

Building Random Forest on a data-set comprising of missing(NA) values

You have two options, either impute the ...READ MORE

Apr 3, 2018 in Data Analytics by Bharani
 • 4,660 points • 1,787 views
0 votes
1 answer

What is the standard naming convention for the variables in R?

Use of period separator e.g. product.prices <- c(12.01, ...READ MORE

Apr 25, 2018 in Data Analytics by shams
 • 3,670 points • 800 views
0 votes
1 answer

How to join columns that are non-NA?

You can match on something like X=X ...READ MORE

Apr 18, 2018 in Data Analytics by Sahiti
 • 6,370 points • 1,024 views
0 votes
1 answer

How to merge data frames using joins?

You can use the merge function with ...READ MORE

Apr 12, 2018 in Data Analytics by kappa3010
 • 2,090 points • 1,250 views
0 votes
1 answer

Is there any way to check for missing packages and install them in R?

There are 2 options: Either you can use ...READ MORE

Apr 17, 2018 in Data Analytics by nirvana
 • 3,090 points • 1,018 views
0 votes
1 answer

AUC for 3-Class prediction in R

Use type='probs' inside predict() function, so that ...READ MORE

Apr 4, 2018 in Data Analytics by Bharani
 • 4,660 points • 1,583 views
0 votes
1 answer

How to install an R package from source?

If you have your file located locally ...READ MORE

Apr 14, 2018 in Data Analytics by CodingByHeart77
 • 3,750 points • 1,169 views
0 votes
1 answer

How to prevent row names to be written to a file while using

Easily by: write.csv(df, "temp.csv", row.names=FALSE) READ MORE

Apr 20, 2018 in Data Analytics by DeepCoder786
 • 1,720 points • 838 views
0 votes
1 answer

How do I find out what directory R has chosen to store packages?

.libPaths() // You can use this command ...READ MORE

Apr 24, 2018 in Data Analytics by zombie
 • 3,790 points • 700 views
0 votes
1 answer

Get list of rownames as values after aggregating a dataframe

You can use reshape2 library: library(reshape2) data <- read.table(text="type ...READ MORE

Apr 17, 2018 in Data Analytics by Sahiti
 • 6,370 points • 940 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

Apr 18, 2018 in Data Analytics by zombie
 • 3,790 points • 915 views
0 votes
1 answer

Reshape data from long to wide format

You can use the reshape function reshape(data, idvar ...READ MORE

Apr 17, 2018 in Data Analytics by nirvana
 • 3,090 points • 927 views
0 votes
1 answer

Check if the object(variable) is defined in R

You can use the exists(): > exists("toFindUnknown") [1] FALSE > ...READ MORE

Apr 17, 2018 in Data Analytics by Sahiti
 • 6,370 points • 923 views
0 votes
1 answer

In a dpylr pipline how to use sample and seq?

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

Apr 6, 2018 in Data Analytics by DeepCoder786
 • 1,720 points
edited Jun 9, 2020 by Gitika • 1,337 views
0 votes
1 answer

How to apply list to a function which give data frame as output

If you use  tidyverse, you can use ...READ MORE

Apr 11, 2018 in Data Analytics by Sahiti
 • 6,370 points • 1,103 views
0 votes
1 answer

Using "dplyr" to summarise multiple columns

You can use the "sumamrise_all()" function for ...READ MORE

Mar 27, 2018 in Data Analytics by Bharani
 • 4,660 points • 1,768 views
0 votes
1 answer

How can I use parallel so that it preserves the list of data frames

You can use pmap as follows: nc <- ...READ MORE

Apr 4, 2018 in Data Analytics by kappa3010
 • 2,090 points • 1,339 views
0 votes
1 answer

How to achieve pivot like data using tidyverse library in R?

You need not spread twice, if you ...READ MORE

Apr 4, 2018 in Data Analytics by kappa3010
 • 2,090 points • 1,275 views
0 votes
1 answer

Join list of data.frames using map() call

You can use Reduce set.seed(24) r1 <- map(c(5, 10, 15), ...READ MORE

Apr 6, 2018 in Data Analytics by Sahiti
 • 6,370 points • 1,196 views
0 votes
1 answer

Plotting multiple graphs on the same page in R

If you want to plot 4 graphs ...READ MORE

Mar 27, 2018 in Data Analytics by Bharani
 • 4,660 points • 1,569 views
0 votes
1 answer

How to drop data frame columns by name?

Easily you can do it: drops <- c("V2","V4") df1[ ...READ MORE

Apr 10, 2018 in Data Analytics by DeepCoder786
 • 1,720 points • 956 views
0 votes
1 answer

How to create excellent examples in R?

An excellent example must consist of the ...READ MORE

Apr 10, 2018 in Data Analytics by kappa3010
 • 2,090 points
edited Apr 12, 2018 by kappa3010 • 910 views
0 votes
1 answer

Any built-in function to find mode

You can try out the below code ...READ MORE

Apr 14, 2018 in Data Analytics by kappa3010
 • 2,090 points • 708 views
0 votes
1 answer

With the help of tidyverse: how to rename a column to a variable name

With the help of Dplyr: rename function ...READ MORE

Apr 3, 2018 in Data Analytics by DeepCoder786
 • 1,720 points
edited Apr 3, 2018 by DeepCoder786 • 1,111 views
0 votes
1 answer

Left Join and Right Join using "dplyr"

The below is the code to perform ...READ MORE

Mar 27, 2018 in Data Analytics by Bharani
 • 4,660 points • 1,425 views
0 votes
1 answer

How to change mulitiple characters in a column to a date

Firstly we have to set dataf variable ...READ MORE

Apr 3, 2018 in Data Analytics by DeepCoder786
 • 1,720 points • 1,012 views
0 votes
1 answer

Hadoop Streaming job vs regular jobs?

In certain cases, Hadoop Streaming is beneficial ...READ MORE

Mar 22, 2018 in Data Analytics by kurt_cobain
 • 9,350 points • 1,171 views
0 votes
1 answer

Imputation in R

You can work with the "Hmisc" package, ...READ MORE

Mar 27, 2018 in Data Analytics by Bharani
 • 4,660 points • 611 views
0 votes
1 answer

webinar details to join the session

Session it got resolved READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
 • 1,570 points • 2,013 views
0 votes
1 answer

VM with network settings in Virtual box

Dear Learner, We hope you are doing well. Please ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
 • 1,570 points • 1,822 views
0 votes
1 answer

HIVE DATA LOADING ERROR

Dear Raghu, Hope you are doing great. It is ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
 • 1,570 points • 1,601 views
0 votes
1 answer

Issue while running Oozie job

Dear Learner, Hope you are doing well. To overcome ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
 • 1,570 points • 1,559 views
0 votes
1 answer

Big Data transformations with R

Dear Koushik, Hope you are doing great. You can ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
 • 1,570 points • 1,240 views
0 votes
1 answer

How to sync Hadoop configuration files to multiple nodes?

Dear Raman, Hope you are doing great. Please accept ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
 • 1,570 points • 1,159 views
+2 votes
1 answer

Need a hadoop engine in backend to run r server

Dear Koushik, Hope you are doing great. The hadoop ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
 • 1,570 points • 1,052 views
0 votes
1 answer

mysql connection issue in Spark VM

Dear Saravana, Hope you are doing great. We would ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
 • 1,570 points • 1,113 views
+1 vote
1 answer

R query and Data Science

Dear Deepika, Hope you are doing great. You can ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
 • 1,570 points • 1,065 views
0 votes
1 answer

How to Share the files from local system Mac Book to Edureka VM

Hey Satya, Hope you're doing great. Would you please ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
 • 1,570 points • 1,085 views
0 votes
1 answer

Shut down the VM and restarted

Dear Raghu, Please let us know are you ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
 • 1,570 points • 1,074 views
0 votes
1 answer

Pig - Grunt shell

Dear Narayan, Hope you are doing great. You don't ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
 • 1,570 points • 1,057 views
+3 votes
1 answer

Hortonworks Setup for Virtualbox

Dear Learner, Please go to the below link ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
 • 1,570 points • 741 views
0 votes
1 answer

Accessing Remote Server

Hey Sudhanshu, Hope you're doing great. It was pleasure ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
 • 1,570 points • 854 views
0 votes
1 answer

Related to cluster topic

Hi Learner, Hope you are doing well, Please find ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
 • 1,570 points • 829 views
Page:

Most popular tags

"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.