Most voted questions in Data Analytics

0 votes
1 answer

Error saying "object 'mvnorm' not found"

You seem to have made a small ...READ MORE

Nov 9, 2018 in Data Analytics by Maverick
 • 10,840 points • 1,060 views
0 votes
1 answer

Errors saying "Error: unexpected '}' in "}"

This is a syntax error: Enclose your if ...READ MORE

Nov 8, 2018 in Data Analytics by Maverick
 • 10,840 points • 2,806 views
0 votes
1 answer

catch warnings and errors in rpy2

To get the warnings as an rpy2 ...READ MORE

Nov 8, 2018 in Data Analytics by Maverick
 • 10,840 points • 1,224 views
0 votes
1 answer

Error:Shadow graphics device error: r error 4 (R code execution error) when trying to use plot() and ggplot()

Its working perfectly fine with R version ...READ MORE

Nov 8, 2018 in Data Analytics by Maverick
 • 10,840 points • 2,760 views
0 votes
1 answer

Errors on eclipse console as soon as I create a new activity

Restart your eclipse might be solve this ...READ MORE

Nov 8, 2018 in Data Analytics by Maverick
 • 10,840 points • 365 views
0 votes
1 answer

Error saying "R cannot be resolved" on eclipse while running a simple application

Every time you get this error, check ...READ MORE

Nov 8, 2018 in Data Analytics by Maverick
 • 10,840 points • 1,094 views
0 votes
1 answer

Whats the difference between withCallingHandlers and trycatch?

tryCatch withCallingHandlers Program execution breaks and continues with the first expression ...READ MORE

Nov 6, 2018 in Data Analytics by Kalgi
 • 52,360 points • 953 views
0 votes
1 answer

What is withCallingHandlers and how does it work?

withCallingHandlers works similar to tryCatch but remembers the call stack down ...READ MORE

Nov 6, 2018 in Data Analytics by Kalgi
 • 52,360 points • 2,074 views
0 votes
1 answer

How do I ignore errors in R

With the try function you can handle errors to ...READ MORE

Nov 6, 2018 in Data Analytics by Kalgi
 • 52,360 points • 10,167 views
0 votes
1 answer

How do I check and catch errors in R

With tryCatch you can handle errors as you want: an.error.occured ...READ MORE

Nov 6, 2018 in Data Analytics by Kalgi
 • 52,360 points • 452 views
0 votes
1 answer

how to run a logistic regression with clustered standard errors in R?

have a look at rms package. lrm is logistic ...READ MORE

Nov 6, 2018 in Data Analytics by Kalgi
 • 52,360 points • 1,512 views
0 votes
1 answer

Error saying "no applicable method for 'meta' applied to an object of class" when trying to create TermDocumentMatrix

Heyy @Hannah, the following line of code ...READ MORE

Nov 6, 2018 in Data Analytics by Kalgi
 • 52,360 points • 6,801 views
0 votes
1 answer

If-else in R code

x <- c(.5, 0.2, 2, 3.4, 0.4, ...READ MORE

Nov 5, 2018 in Data Analytics by Kalgi
 • 52,360 points • 587 views
0 votes
1 answer

How do I import document files in R programming

Try the following: read.table("~/SMSSpamCollection", header=TRUE, sep="\t") Change "~/" to the "ptah/to/your/file/" Mess around ...READ MORE

Nov 5, 2018 in Data Analytics by Kalgi
 • 52,360 points • 698 views
0 votes
1 answer

Is it possible to use a where clause within ggplot?

You can use the subset function to filter rows ...READ MORE

Nov 5, 2018 in Data Analytics by Kalgi
 • 52,360 points • 1,567 views
0 votes
1 answer

Sort function in R

> set.seed(1) > s <- sample(seq(8, 20, by ...READ MORE

Nov 5, 2018 in Data Analytics by Kalgi
 • 52,360 points • 540 views
0 votes
1 answer

How to download the historical data from two random picked stocks?

assign the output of sample into a variable. my_picks <- ...READ MORE

Nov 5, 2018 in Data Analytics by Kalgi
 • 52,360 points • 500 views
0 votes
1 answer

Trying to add an extra column to an already existing matrix

Try this @Ali, a <- matrix(1:5000, nrow=100) a <- ...READ MORE

Nov 2, 2018 in Data Analytics by Maverick
 • 10,840 points • 418 views
0 votes
1 answer

How do I change background color in Rstudio

Follow this: tools > global options > appearance ...READ MORE

Nov 2, 2018 in Data Analytics by Maverick
 • 10,840 points • 18,850 views
0 votes
1 answer

Change IP address on RStudio

The default is 0.0.0.0, but if you ...READ MORE

Nov 2, 2018 in Data Analytics by Maverick
 • 10,840 points • 1,666 views
0 votes
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 • 697 views
0 votes
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
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 • 4,668 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 • 458 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 • 2,272 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 • 435 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 • 1,109 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 • 392 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 • 3,595 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
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 • 2,127 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 • 2,390 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 • 761 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 • 3,055 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 • 2,216 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 • 345 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 • 1,113 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 • 503 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 • 633 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 • 1,348 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 • 459 views
0 votes
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 • 985 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 • 587 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 • 347 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 • 573 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 • 572 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 • 614 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 • 1,036 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
 • 2,287 views
0 votes
1 answer

How can I find number of columns in a dataframe

To know the number of columns in ...READ MORE

Oct 12, 2018 in Data Analytics by Abhi
 • 3,720 points • 427 views
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