Latest questions in Data Analytics

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1 answer

What is lexical scoping in R

Under lexical scoping rules, if an “unknown” ...READ MORE

Nov 2, 2018 in Data Analytics by Maverick
 • 10,840 points • 703 views
+1 vote
1 answer

Downloading an image using R Programming

Try this: url2 ...READ MORE

Nov 2, 2018 in Data Analytics by Maverick
 • 10,840 points • 609 views
+1 vote
1 answer

an error occurred" because rows do not match when trying to use lm to perform an ANOVA test

Maybe you could do something like this. ...READ MORE

Nov 2, 2018 in Data Analytics by Maverick
 • 10,840 points • 609 views
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1 answer

Mongodb text search in R programming

this example works for me library(mongolite) m <- mongo(db ...READ MORE

Nov 2, 2018 in Data Analytics by Maverick
 • 10,840 points • 746 views
+1 vote
1 answer

Translate curl into R program

Use the RCurl library, its always a ...READ MORE

Nov 2, 2018 in Data Analytics by Maverick
 • 10,840 points • 629 views
+1 vote
1 answer

What does “replacement has” Error mean?

This error occurs when one tries to ...READ MORE

Oct 31, 2018 in Data Analytics by Kalgi
 • 52,360 points • 496 views
+2 votes
1 answer

“subscript out of bounds” Error in r programming

This error is likely to occur when ...READ MORE

Oct 31, 2018 in Data Analytics by Kalgi
 • 52,360 points • 9,382 views
0 votes
1 answer

": cannot open the connection" Error in R

There can be two reasons for this ...READ MORE

Oct 31, 2018 in Data Analytics by Kalgi
 • 52,360 points • 4,675 views
0 votes
1 answer

Most common errors faced when programming with R

These the two most common errors I ...READ MORE

Oct 31, 2018 in Data Analytics by Kalgi
 • 52,360 points • 462 views
+1 vote
1 answer

"subscript out of bounds" error in while executing simple R program

This is caused by trying to access ...READ MORE

Oct 31, 2018 in Data Analytics by Kalgi
 • 52,360 points • 2,097 views
0 votes
1 answer

"no applicable method" Error in r programming

This is caused by using an object-oriented ...READ MORE

Oct 31, 2018 in Data Analytics by Kalgi
 • 52,360 points • 2,277 views
+1 vote
1 answer

what causes these cannot open errors in R?

They are caused by attempts to read a ...READ MORE

Oct 31, 2018 in Data Analytics by Kalgi
 • 52,360 points • 511 views
+1 vote
1 answer

Getting the following error: Error in eval

This error is caused by references to ...READ MORE

Oct 31, 2018 in Data Analytics by Kalgi
 • 52,360 points • 560 views
0 votes
1 answer

"Error in if" while trying to execute simple code in R

This caused non-logical data or missing values passed ...READ MORE

Oct 31, 2018 in Data Analytics by Kalgi
 • 52,360 points • 437 views
+1 vote
1 answer

Remove NA values from the output in R programming

Edit your code: columnmean <- function(x, removeNA = ...READ MORE

Oct 31, 2018 in Data Analytics by Kalgi
 • 52,360 points • 666 views
+1 vote
1 answer

R has something called lazy evaluation, what does that mean?

Let me explain this with an example. ...READ MORE

Oct 31, 2018 in Data Analytics by Kalgi
 • 52,360 points • 1,014 views
0 votes
1 answer

What is active binding in R programming

Active bindings in R are much like ...READ MORE

Oct 30, 2018 in Data Analytics by Maverick
 • 10,840 points • 1,116 views
+1 vote
1 answer

ROC curve use

ROC curve is basically used to reflect ...READ MORE

Oct 30, 2018 in Data Analytics by kurt_cobain
 • 9,390 points • 642 views
0 votes
1 answer

Simple matrix logic in R

In R, if you have a matrix: m1 ...READ MORE

Oct 30, 2018 in Data Analytics by Maverick
 • 10,840 points • 398 views
+1 vote
1 answer

k means vs KNN

K-means clustering is basically an unsupervised clustering ...READ MORE

Oct 30, 2018 in Data Analytics by kurt_cobain
 • 9,390 points • 818 views
+1 vote
1 answer

Does R programming support Firebird database?

Yes ofcourse you can.  This page will show ...READ MORE

Oct 30, 2018 in Data Analytics by Maverick
 • 10,840 points • 1,343 views
0 votes
1 answer

Element wise multiplication in R

In R the simple vector multiplication gives ...READ MORE

Oct 30, 2018 in Data Analytics by Maverick
 • 10,840 points • 3,603 views
0 votes
1 answer

Looping error in R

You need a sequence to iterate over ...READ MORE

Oct 30, 2018 in Data Analytics by Maverick
 • 10,840 points • 327 views
+1 vote
1 answer

Sklearn GaussianMixture

The GaussianMixture object implements the expectation-maximization (EM) ...READ MORE

Oct 30, 2018 in Data Analytics by Priyaj
 • 58,090 points • 786 views
0 votes
1 answer

Error in source("myfunction.R") : myfunction.R:2:3: unexpected symbol 1: 2: R version

Try formatting your code like this: myfunction <- ...READ MORE

Oct 30, 2018 in Data Analytics by Maverick
 • 10,840 points • 2,130 views
0 votes
1 answer

What ~ (tilde) command do?

Something that characterizes formulas in R is ...READ MORE

Oct 30, 2018 in Data Analytics by Maverick
 • 10,840 points • 2,393 views
0 votes
1 answer

Error saying "Error in source("myfirst.R") : myfirst.R:14:2: unexpected '!' 13: 14: ë! ^"

This is a very common issue that ...READ MORE

Oct 30, 2018 in Data Analytics by Maverick
 • 10,840 points • 765 views
+1 vote
1 answer

"Error in eval(ei, envir) : object 'RDX2' not found" when trying to source the code in R

This is a very common issue that ...READ MORE

Oct 30, 2018 in Data Analytics by Maverick
 • 10,840 points • 4,707 views
0 votes
1 answer

Error saying "Error in rnorm() : argument "n" is missing, with no default" in R

Hey @ali, rnorm() function requires an argument, ...READ MORE

Oct 30, 2018 in Data Analytics by Maverick
 • 10,840 points • 3,065 views
0 votes
1 answer

Function to check if matrix empty or not

here is some question of what is ...READ MORE

Oct 29, 2018 in Data Analytics by Maverick
 • 10,840 points • 2,223 views
+1 vote
1 answer

Difference between factor and as.factor in R programming

Hey @Ali, as.factor is a wrapper for ...READ MORE

Oct 29, 2018 in Data Analytics by Maverick
 • 10,840 points • 4,530 views
0 votes
1 answer

Expression Computation - R programming

The sequence of ones: cumsum(10^(0:4)) ## [1] ...READ MORE

Oct 29, 2018 in Data Analytics by Maverick
 • 10,840 points • 346 views
+1 vote
1 answer

R programming Web Scraping

Try something like this: library(rvest) library(rvest) library(tidyverse) urls <- read_html("http://dk.farnell.com/c/office-computer-networking-products/prl/results/") pag <- ...READ MORE

Oct 29, 2018 in Data Analytics by Maverick
 • 10,840 points • 804 views
+3 votes
2 answers

Error: could not find function - R Programming

Yes, Just like @Maverik said, It happens ...READ MORE

Aug 23, 2019 in Data Analytics by anonymous
 • 33,030 points • 32,993 views
+1 vote
1 answer

What does “Error: object '<myvariable>' not found” mean?

The error means that R could not ...READ MORE

Oct 29, 2018 in Data Analytics by Ali
 • 11,360 points • 1,818 views
0 votes
2 answers

What are the skills required for data science?

Data Science is a platform for analyzing ...READ MORE

Apr 4, 2019 in Data Analytics by MrBoot
 • 1,190 points • 1,126 views
0 votes
1 answer

How are the job opportunities for R programmers?

R offers bright job prospects for any ...READ MORE

Oct 29, 2018 in Data Analytics by Maverick
 • 10,840 points • 505 views
0 votes
1 answer

Why should I adopt R programming

R Programming is the best mechanism for ...READ MORE

Oct 29, 2018 in Data Analytics by Maverick
 • 10,840 points • 637 views
0 votes
1 answer

How is R applied in real world?

R Programming gives a broad variety of ...READ MORE

Oct 29, 2018 in Data Analytics by Maverick
 • 10,840 points • 1,352 views
0 votes
1 answer

What are R packages

These are a few R packages available: tidyverse Shiny rma ...READ MORE

Oct 26, 2018 in Data Analytics by Maverick
 • 10,840 points • 460 views
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1 answer

What are R tools

Rtools provides a toolchain for Windows platform ...READ MORE

Oct 26, 2018 in Data Analytics by Kalgi
 • 52,360 points • 987 views
+1 vote
3 answers

Which language should I learn when starting career as data scientist - R or Python

I'll put down a few parameters on ...READ MORE

Oct 26, 2018 in Data Analytics by Kalgi
 • 52,360 points • 1,043 views
0 votes
1 answer

Install R on windows

Hey @Ali,  Go to the following link: https://cran.r-project.org/bin/windows/base/ and ...READ MORE

Oct 26, 2018 in Data Analytics by Maverick
 • 10,840 points • 591 views
0 votes
1 answer

Bias-Variance Decomposition

It is generally used to decompose problems ...READ MORE

Oct 23, 2018 in Data Analytics by kurt_cobain
 • 9,390 points • 351 views
0 votes
1 answer

Bias and Variance

In the learning algorithms, Bias is generally ...READ MORE

Oct 23, 2018 in Data Analytics by kurt_cobain
 • 9,390 points • 576 views
0 votes
1 answer

Handling Imbalanced dataset

This usually occurs when a vast set ...READ MORE

Oct 17, 2018 in Data Analytics by kurt_cobain
 • 9,390 points • 577 views
0 votes
1 answer

Reliability of Bayes Theorem

Baye’s theorem is useful for determining the ...READ MORE

Oct 17, 2018 in Data Analytics by kurt_cobain
 • 9,390 points • 624 views
0 votes
2 answers

When scoring a logistic regression model , is having the predicted variable in test dataset mandatory ?

Answer to your follow up question: We can ...READ MORE

Oct 17, 2018 in Data Analytics by Anmol
 • 1,780 points • 1,039 views
0 votes
2 answers

How can you find total number of null values in a dataset column wise?

data['Column Name'].isnull().sum() READ MORE

May 7, 2020 in Data Analytics by anonymous
 • 2,293 views
+1 vote
2 answers

How can I find number of rows in a dataframe, and how to find the number of rows that dont have null values

Use nrow() to find number of rows ...READ MORE

Aug 14, 2019 in Data Analytics by anonymous
 • 1,244 views
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