Most answered questions in Edureka Community

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1 answer

R - any_vars and all_vars() functions

Hi, Chaitra The main difference between them is ...READ MORE

Aug 26, 2019 in Data Analytics by anonymous
 • 33,030 points • 2,267 views
+1 vote
1 answer

difference between plyr and dplyr

@Kunal, Both are similar package used for ...READ MORE

Oct 29, 2019 in Data Analytics by Cherukuri
 • 33,030 points • 5,408 views
0 votes
1 answer

Puppet: How can i check for syntax errors on my puppet code? Is there any tool to do this?

At the lowest level of checking, you ...READ MORE

Aug 7, 2019 in Puppet by Sirajul
 • 59,230 points • 7,884 views
0 votes
1 answer

2 dataframes in single dplyr pipeline

You can use 2 different data frames ...READ MORE

Aug 21, 2019 in Data Analytics by anonymous
 • 33,030 points • 1,228 views
0 votes
1 answer

Add a index/Row number column to dataframe

Hi, Bharath. You can add index using seq(1:nrow(data frame)). Example ...READ MORE

Sep 10, 2019 in Data Analytics by Cherukuri
 • 33,030 points • 4,423 views
0 votes
1 answer

How to add ggplot over each other?

Do you mean to add multiple geom ...READ MORE

Nov 3, 2019 in Data Analytics by anonymous
 • 33,030 points • 440 views
0 votes
1 answer

Hide code while running markdown html document

Assign echo and warning as false to display ...READ MORE

Sep 10, 2019 in Data Analytics by kamal
 • 1,277 views
0 votes
1 answer

Hadoop: Error: Hadoop Master cannot start the Slave with different user (or) Slave with different user failed to start by Hadoop Master node.

Hi, You can use these commands to get ...READ MORE

Aug 7, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 1,498 views
0 votes
1 answer

Puppet v/s Ansible

Here are few major contrasts among Puppet ...READ MORE

Aug 7, 2019 in Puppet by Sirajul
 • 59,230 points • 762 views
0 votes
1 answer

Error: /Stage[main]/Abrt/File[/etc/abrt/abrt.conf]: Could not evaluate: Could not retrieve information from environment development source(s)

You cannot implicitly convert an array to ...READ MORE

Aug 7, 2019 in Puppet by Sirajul
 • 59,230 points • 444 views
0 votes
1 answer

Hadoop: Error: slave: bash: line 0: cd: /opt/hadoop-1.1.0/libexec/..: No such file or directory

Hi,   In this case, it is searching ...READ MORE

Aug 7, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 1,114 views
0 votes
1 answer

how can you temporarily turn off the jenkins security when the adminstrators have locked out of the admin consoles?

The JENKINS_HOME organizer contains a document named ...READ MORE

Aug 7, 2019 in Jenkins by Sirajul
 • 59,230 points • 2,079 views
0 votes
1 answer

Error: /Stage[main]/Mysql-server/Service[mysql-server]: Could not evaluate: Could not find init script or upstart conf file for 'mysql-server'

The error means that puppet was not ...READ MORE

Aug 7, 2019 in Puppet by Sirajul
 • 59,230 points • 473 views
0 votes
1 answer

How to create a dictionary whose elements are lists?

A simple way to do this is ...READ MORE

Aug 7, 2019 in Python by Arvind
 • 3,040 points • 867 views
0 votes
1 answer

Is it possible to read a text file into a string variable and then scrap the newlines?

This can be done easily in Python. ...READ MORE

Aug 7, 2019 in Python by Arvind
 • 3,040 points • 1,562 views
0 votes
1 answer

Puppet: Error when trying to use many manifests

Your kp::testfile is a defined type, not ...READ MORE

Aug 7, 2019 in Puppet by Sirajul
 • 59,230 points • 522 views
0 votes
1 answer

Puppet: Can i automatically generate puppet manifests from a puppet server?

Yes, here is how you can do ...READ MORE

Aug 7, 2019 in Puppet by Sirajul
 • 59,230 points • 563 views
0 votes
1 answer

converting string into datetime

You can make use of asctime() method ...READ MORE

Aug 7, 2019 in Python by Wajiha
 • 1,950 points • 408 views
+1 vote
1 answer

What are some attributes of a good test framework when selecting one? How to choose one among so many?

There are way too many and it's ...READ MORE

Aug 7, 2019 in Software Testing by Archana
 • 5,640 points • 4,698 views
+1 vote
1 answer

Is automation testing black-box testing or white-box testing?

You might have got confused because of ...READ MORE

Aug 7, 2019 in Software Testing by Archana
 • 5,640 points
edited Jul 19, 2023 by Khan Sarfaraz • 6,307 views
0 votes
1 answer

Puppet: How do i disable the default pull configuration so i can only push from my Puppet server when required?

In order to stop the Puppet service,you ...READ MORE

Aug 7, 2019 in Puppet by Sirajul
 • 59,230 points • 1,358 views
0 votes
1 answer

Puppet: Error: Cannot set modulepath settings in puppet.conf

These extra module paths are specific to ...READ MORE

Aug 7, 2019 in Puppet by Sirajul
 • 59,230 points • 1,881 views
0 votes
1 answer

Would i be able to utilize same module that i have in puppet master in my puppet agent?

Yes, you can do this. The issue that ...READ MORE

Aug 7, 2019 in Puppet by Sirajul
 • 59,230 points • 375 views
0 votes
1 answer

Edit image in R

There are different packages in r to edit the ...READ MORE

Aug 7, 2019 in Data Analytics by anonymous
 • 33,030 points • 1,358 views
0 votes
1 answer

How do I make a matrix from a list of vectors in R?

Suppose l1 and l2 are my vectors, li = ...READ MORE

Aug 7, 2019 in Data Analytics by Cherukuri
 • 33,030 points • 896 views
0 votes
1 answer

How to save datasets in R as external file?

One way is to save the data ...READ MORE

Sep 10, 2019 in Data Analytics by kamal
 • 991 views
0 votes
1 answer

use of tilde in R

One use of ~ is to mention ...READ MORE

Aug 7, 2019 in Data Analytics by anonymous
 • 33,030 points • 1,000 views
0 votes
1 answer

Summarize with a condition

You can provide condition to summarize using ...READ MORE

Aug 7, 2019 in Data Analytics by anonymous
 • 33,030 points • 3,848 views
0 votes
1 answer

Can mechanical engineer learn machine learning?

The era of machines and robots have ...READ MORE

Aug 8, 2019 in Career Counselling by Kalgi
 • 52,360 points • 8,560 views
0 votes
1 answer

Extract text from image in R

Try below code to fetch the image ...READ MORE

Aug 7, 2019 in Data Analytics by anonymous
 • 33,030 points • 3,219 views
0 votes
1 answer

Overlap images to create a new picture

Use image_flatten() or image_mosaic() to overlap image over ...READ MORE

Aug 7, 2019 in Data Analytics by anonymous
 • 33,030 points • 724 views
0 votes
1 answer

Which cloud provider is the most secure cloud platform?

Today's era opt digitalization to ensure precise authentication of the ...READ MORE

Aug 7, 2019 in AWS by Archana
 • 240 points • 629 views
0 votes
1 answer

Create an animation from images in R

Create a vector with all frames required ...READ MORE

Aug 7, 2019 in Data Analytics by anonymous
 • 33,030 points • 557 views
0 votes
1 answer

resize the image in R

Hi,  You can read the image using Magick ...READ MORE

Aug 7, 2019 in Data Analytics by anonymous
 • 33,030 points • 9,522 views
+1 vote
1 answer

How to read a data from text file in Spark?

Hey, You can try this: from pyspark import SparkContext SparkContext.stop(sc) sc ...READ MORE

Aug 6, 2019 in Apache Spark by Gitika
 • 65,910 points • 4,731 views
0 votes
1 answer

How to start spark history server?

Hi, You can use this command to start ...READ MORE

Aug 6, 2019 in Apache Spark by Gitika
 • 65,910 points • 582 views
0 votes
1 answer

How to count words in notepad File using Selenium

To perform character count. String fPath="D:/MyTextFile.txt"; int fileCharactersCount=Files.readAllBytes(new File(fPath).toPath() ...READ MORE

Aug 7, 2019 in Selenium by neerajv
 • 170 points • 1,893 views
0 votes
1 answer

What is Spark UI and how to monitor a spark job?

Hey, Jobs- to view all the spark jobs Stages- ...READ MORE

Aug 6, 2019 in Apache Spark by Gitika
 • 65,910 points • 2,908 views
0 votes
1 answer

How to handle data shuffle in Spark

Hi, You can do it using map partition ...READ MORE

Aug 6, 2019 in Apache Spark by Gitika
 • 65,910 points • 1,177 views
0 votes
1 answer

Error "the number of available CPUs 1 is less than the required 2" when creating kubernetes cluster on ec2

The new version of Kubernetes requires you ...READ MORE

Aug 6, 2019 in Kubernetes by Macy
 • 7,009 views
0 votes
1 answer

Is there a provision of on failure ability in puppet?

Not a built-in one, no.  They do log failures, of ...READ MORE

Aug 6, 2019 in Puppet by Sirajul
 • 59,230 points • 407 views
0 votes
1 answer

How can i execute a single class from my puppet manifest file?

You can execute a subset of resources ...READ MORE

Aug 6, 2019 in Puppet by Sirajul
 • 59,230 points • 2,102 views
0 votes
1 answer

Can we download python from command line?

Open a command prompt window and navigate to the ...READ MORE

Aug 6, 2019 in Python by Mohammad
 • 3,230 points • 619 views
0 votes
1 answer

What does the dir() function do in python?

The dir() function returns all properties and methods of ...READ MORE

Aug 6, 2019 in Python by Mohammad
 • 3,230 points • 781 views
0 votes
1 answer

Can i install puppet master and puppet agent on the same centos machine? How will that work?

Yes, It's now possible to install both ...READ MORE

Aug 6, 2019 in Puppet by Sirajul
 • 59,230 points • 939 views
0 votes
1 answer

Error "Target packages is configures multiple times in /etc/apt/sources.list:60 "

Check your /etc/spt/sources.list and /etc/apt/sources.d/kubernetes.list. You might have ...READ MORE

Aug 6, 2019 in Kubernetes by Janice
 • 2,868 views
0 votes
1 answer

Puppet Error: Unable to locate package PuppetDB

You will have to enable the puppet ...READ MORE

Aug 6, 2019 in Puppet by Sirajul
 • 59,230 points • 1,179 views
0 votes
1 answer

Error while installing Kubernetes using snap

Don't install using snap. It throws a ...READ MORE

Aug 6, 2019 in Kubernetes by Harshit
 • 2,622 views
0 votes
1 answer

Error saying "No apt package "kubeadm", but there is a snap with that name. Try "snap install kubeadm""

You're getting this error because you do ...READ MORE

Aug 6, 2019 in Kubernetes by Jarvis
 • 9,613 views
0 votes
1 answer

How do you configure automatic build in jenkins?

Works in Jenkins can be activated intermittently ...READ MORE

Aug 6, 2019 in Jenkins by Sirajul
 • 59,230 points • 702 views
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