Trending questions in Data Analytics

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Removing unimportant variables before building Random Forest

Build the randomForest model on top of ...READ MORE

Apr 4, 2018 in Data Analytics by Bharani
• 4,550 points
300 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
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edited Apr 12, 2018 by kappa3010 40 views
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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
36 views
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1 answer

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

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

Apr 5, 2018 in Data Analytics by DeepCoder786
• 1,720 points
161 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
87 views
+1 vote
1 answer

How to convert a list of vectors with various length into a Data.Frame?

We can easily use this command as.data.frame(lapply(d1, "length< ...READ MORE

Apr 4, 2018 in Data Analytics by DeepCoder786
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131 views
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1 answer

By using dpylr package sum of multiple columns

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

Apr 5, 2018 in Data Analytics by DeepCoder786
• 1,720 points
116 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
• 4,550 points
144 views
0 votes
1 answer

How to change y axis max in time series using R?

The axis limits are being set using ...READ MORE

Apr 3, 2018 in Data Analytics by darklord
• 6,190 points
178 views
0 votes
1 answer

How to join two tables (tibbles) by *list* columns in R

You can use the hash from digest ...READ MORE

Apr 5, 2018 in Data Analytics by kappa3010
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72 views
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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
• 2,020 points
110 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 2, 2018 in Data Analytics by Bharani
• 4,550 points
173 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 5, 2018 in Data Analytics by darklord
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32 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
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107 views
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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
• 2,020 points
42 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
• 4,550 points
44 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 darklord
• 6,190 points
65 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 49 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
42 views
0 votes
1 answer

Using "dplyr" to summarise multiple columns

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

Mar 26, 2018 in Data Analytics by Bharani
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313 views
0 votes
1 answer

Finding frequency of observations in R

You can use the "dplyr" package to ...READ MORE

Mar 26, 2018 in Data Analytics by Bharani
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201 views
0 votes
1 answer

Left Join and Right Join using "dplyr"

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

Mar 26, 2018 in Data Analytics by Bharani
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123 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
• 4,550 points
62 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
• 4,550 points
26 views
0 votes
1 answer

why we need beeline?

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

Dec 18, 2017 in Data Analytics by Sudhir
• 1,610 points
4,269 views
0 votes
1 answer

hadoop.mapred vs hadoop.mapreduce?

org.apache.hadoop.mapred is the Old API  org.apache.hadoop.mapreduce is the ...READ MORE

Mar 16, 2018 in Data Analytics by nitinrawat895
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408 views
0 votes
1 answer

Hadoop Streaming job vs regular jobs?

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

Mar 21, 2018 in Data Analytics by kurt_cobain
• 9,260 points
65 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
• 1,610 points
255 views
0 votes
1 answer

HIVE DATA LOADING ERROR

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

Dec 17, 2017 in Data Analytics by Sudhir
• 1,610 points
244 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
• 1,610 points
208 views
+2 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
• 1,610 points
51 views
+1 vote
1 answer

Need a hadoop engine in backend to run r server

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

Dec 17, 2017 in Data Analytics by Sudhir
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71 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
• 1,610 points
109 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
• 1,610 points
94 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
• 1,610 points
91 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
• 1,610 points
86 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
• 1,610 points
85 views
0 votes
1 answer

mysql connection issue in Spark VM

Dear Learner, Hope you are doing well. Please go ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
• 1,610 points
81 views
0 votes
1 answer

Splunk Cluster instalation document was not uploaded in the cource.

Dear Learner, Greetings ! We would like to inform ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
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64 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
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64 views
0 votes
1 answer

Executing the pig commands

Dear Narayana, Hope you are doing great. Yes you ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
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58 views
0 votes
1 answer

Big Data transformations with R

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

Dec 17, 2017 in Data Analytics by Sudhir
• 1,610 points
60 views
0 votes
1 answer

compiler error in Selenium

Dear Learner, Hope you are doing great. Your code ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
• 1,610 points
43 views
0 votes
1 answer

R query and Data Science

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

Dec 17, 2017 in Data Analytics by Sudhir
• 1,610 points
39 views
0 votes
1 answer

Join using two mappers - invalid inputfile exception

Dear Learner, Hope you are doing well. Can you ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
• 1,610 points
33 views
0 votes
1 answer

pig script or normal pig command

Dear Narayan, Please accept our sincere apologies for ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
• 1,610 points
32 views
0 votes
1 answer

Shut down the VM and restarted

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

Dec 17, 2017 in Data Analytics by Sudhir
• 1,610 points
34 views
0 votes
1 answer

Error , screenshot shared.

Hope you are doing great. Please share with ...READ MORE

Dec 18, 2017 in Data Analytics by Sudhir
• 1,610 points
30 views
0 votes
1 answer

Git - commited file and uncommited file

Hi Mittal, Git commit is necessary for pushing ...READ MORE

Dec 17, 2017 in Data Analytics by Sudhir
• 1,610 points
32 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
• 1,610 points
25 views