Trending questions in Data Analytics

+1 vote
5 answers

How to remove NA values with dplyr::filter()

Try this: df %>% filter(!is.na(col1)) READ MORE

Mar 26, 2019 in Data Analytics by anonymous
 • 331,376 views
+1 vote
5 answers

How to remove NA values from a Vector in R?

Hello team, you can use na.omit x <- c(NA, 3, ...READ MORE

Dec 9, 2020 in Data Analytics by anonymous
 • 82,840 points • 195,117 views
0 votes
4 answers

How to change font size of text and axes on R plots ?

To change the font size of text ...READ MORE

Dec 16, 2020 in Data Analytics by Gitika
 • 65,770 points • 122,285 views
+2 votes
2 answers

Change data type of one column in R

You can change data types using as.* ...READ MORE

Aug 16, 2019 in Data Analytics by anonymous
 • 33,030 points • 121,750 views
+4 votes
11 answers

Creating an empty data.frame with only column names - R

Hi, You need to create a data frame ...READ MORE

Dec 11, 2020 in Data Analytics by MD
 • 95,460 points • 108,023 views
+5 votes
3 answers

Counting the frequency of unique values - R

Hi, You can use plyr module. It will give ...READ MORE

Dec 14, 2020 in Data Analytics by MD
 • 95,460 points • 98,472 views
+2 votes
1 answer

Show a list of all variables in R

Hi Swathi, You can use ls() to list ...READ MORE

Jun 27, 2019 in Data Analytics by Cherukuri
 • 33,030 points • 96,352 views
+2 votes
5 answers

Printing a data.frame without index - Python

.tolist() function will remove index READ MORE

Mar 11, 2019 in Data Analytics by nishant thakur
 • 87,910 views
+1 vote
3 answers

Filtering R data-frame with multiple conditions

You can use the 'filter' function from ...READ MORE

Mar 26, 2018 in Data Analytics by Bharani
 • 4,660 points • 87,150 views
+1 vote
2 answers

Which function can I use to clear the console in R and RStudio ?

Description                   Windows & Linux           Mac Clear console                      Ctrl+L ...READ MORE

Apr 17, 2018 in Data Analytics by anonymous
 • 82,285 views
+4 votes
3 answers

How to sum a variable by group in R?

You can also try this way, x_new = ...READ MORE

Aug 1, 2019 in Data Analytics by Cherukuri
 • 33,030 points • 78,148 views
0 votes
1 answer

How to check if a file already exists or not in R?

Check out file.exists() function!! The function file.exists() returns a ...READ MORE

Oct 29, 2019 in Data Analytics by Cherukuri
 • 33,030 points • 68,127 views
0 votes
2 answers

R function for finding the index of an element in a vector?

The function match works on vectors : x <- sample(1:10) x # ...READ MORE

Dec 12, 2020 in Data Analytics by Rajiv
 • 8,870 points • 56,631 views
0 votes
1 answer

How to Use rbind and cbind on Single Dataframe

To obtain the desired output, you can ...READ MORE

Jun 22, 2023 in Data Analytics by anonymous
 • 1,380 points • 1,110 views
0 votes
1 answer

how to use the Box-Cox power transformation in R

Yes, you are on the right track ...READ MORE

Jun 22, 2023 in Data Analytics by anonymous
 • 1,380 points • 1,163 views
0 votes
1 answer

Speed up the loop operation in R

To improve the performance of your code, ...READ MORE

Jun 22, 2023 in Data Analytics by anonymous
 • 1,380 points • 790 views
0 votes
1 answer

All Levels of a Factor in a Model Matrix in R

Yes, you can modify the model.matrix() function ...READ MORE

Jun 22, 2023 in Data Analytics by anonymous
 • 1,380 points • 943 views
0 votes
1 answer

Extracting specific columns from a data frame

Yes, there is a more efficient method ...READ MORE

Jun 22, 2023 in Data Analytics by anonymous
 • 1,380 points • 838 views
0 votes
1 answer

What is the difference between rm() and rm(list=ls())?

Yes, you can clear all variables in ...READ MORE

Jun 22, 2023 in Data Analytics by anonymous
 • 1,380 points • 674 views
0 votes
1 answer

Error: could not find function ... in R

If you encounter an error stating "'some.function' ...READ MORE

Jun 22, 2023 in Data Analytics by anonymous
 • 1,380 points • 645 views
0 votes
1 answer

What is the difference between list and vector in R?

The difference are - A list holds different ...READ MORE

Oct 29, 2019 in Data Analytics by Cherukuri
 • 33,030 points • 48,124 views
+6 votes
3 answers

"Error: '\U' used without hex digits in character string starting ""C:\U"" when trying to read a csv file in R

Replace all \ with \\. Its trying ...READ MORE

Nov 26, 2018 in Data Analytics by Maverick
 • 10,840 points • 44,944 views
0 votes
1 answer

What does the double percentage sign (%%) mean?

According to the "Arithmetic operators" help page ...READ MORE

Jun 14, 2022 in Data Analytics by Sohail
 • 3,040 points • 2,919 views
0 votes
1 answer

R numbers from 1 to 100

Your error is seeking for range, which ...READ MORE

Jun 24, 2022 in Data Analytics by Sohail
 • 3,040 points • 1,645 views
0 votes
1 answer

What does 'r' mean before a Regex pattern?

Since the string is to be treated ...READ MORE

Jun 24, 2022 in Data Analytics by Sohail
 • 3,040 points • 1,608 views
0 votes
1 answer

Vectorized IF statement in R?

x <- seq(0.1,10,0.1) > x [1] ...READ MORE

Jun 24, 2022 in Data Analytics by Sohail
 • 3,040 points • 1,566 views
0 votes
0 answers

Create data frame from function in R

One function that I designed can produce ...READ MORE

Jul 9, 2022 in Data Analytics by avinash
 • 1,840 points • 781 views
0 votes
0 answers

R function rep() in Python (replicates elements of a list/vector)

Each element of a vector is duplicated ...READ MORE

Jun 24, 2022 in Data Analytics by Sohail
 • 3,040 points • 1,334 views
0 votes
1 answer

what is diffrence between NROW and nrow in r?

5 In R, you may always check ...READ MORE

Jun 24, 2022 in Data Analytics by Sohail
 • 3,040 points • 1,167 views
0 votes
1 answer

Why does tidyverse still require plyr to load?

ggplot2 still imports plyr (at least as ...READ MORE

Jun 24, 2022 in Data Analytics by Sohail
 • 3,040 points • 1,096 views
0 votes
0 answers

Confidence interval calculation in R

When attempting to compute the CI in ...READ MORE

Jul 5, 2022 in Data Analytics by avinash
 • 1,840 points • 493 views
0 votes
0 answers

Extracting the last n characters from a string in R

See the code below: library(dslabs) data(gapminder) differenceminder percent > percent filter(year% ...READ MORE

Jul 5, 2022 in Data Analytics by avinash
 • 1,840 points • 475 views
0 votes
0 answers

How can I avoid the transformation into an atomic vector in a matrix (r programming)

I'm scrambling to come up with a ...READ MORE

Jul 5, 2022 in Data Analytics by avinash
 • 1,840 points • 442 views
0 votes
0 answers

How can two strings be concatenated?

cbind = tmp ("GAD", "AB") tmp # [,1] ...READ MORE

Jul 5, 2022 in Data Analytics by avinash
 • 1,840 points • 413 views
0 votes
1 answer

What does "pch" stand for?

Plot character or pch is the standard ...READ MORE

Jun 23, 2022 in Data Analytics by Sohail
 • 3,040 points • 1,330 views
0 votes
1 answer

why the predict() function does have different rows in R

Alter this sentence: model = lm(train$latitude train$crashes) to lm(crashes ...READ MORE

Jun 24, 2022 in Data Analytics by Sohail
 • 3,040 points • 859 views
0 votes
1 answer

why the predict() function does have different rows in R

Alter this sentence: model = lm(train$latitude train$crashes) to lm(crashes ...READ MORE

Jun 24, 2022 in Data Analytics by Sohail
 • 3,040 points • 802 views
+1 vote
2 answers

change the color for bars in geom_bar in ggplot

Hi @radha, You can have 2 types of ...READ MORE

Jul 24, 2019 in Data Analytics by Cherukuri
 • 33,030 points • 35,745 views
0 votes
1 answer

How to one hot encode several categorical variables in R

43 I advise employing the caret package's dummyVars ...READ MORE

Jun 24, 2022 in Data Analytics by Sohail
 • 3,040 points • 824 views
0 votes
1 answer

Text mining- how to build a term-document matrix

You're not loading the TM library, and ...READ MORE

Jun 24, 2022 in Data Analytics by Sohail
 • 3,040 points • 716 views
0 votes
1 answer

Loading ggplot2 package, missing 'munsell' package

You ought to have done this: "ggplot2" is ...READ MORE

Jun 24, 2022 in Data Analytics by Sohail
 • 3,040 points • 867 views
0 votes
0 answers

Extracting the last n characters from a string in R

The final n characters of a string ...READ MORE

Jun 27, 2022 in Data Analytics by avinash
 • 1,840 points • 554 views
0 votes
1 answer

StepAIC() stopping point

Square RSS Df Sum AIC 169 61.3 ...READ MORE

Jun 24, 2022 in Data Analytics by Sohail
 • 3,040 points • 675 views
0 votes
1 answer

if - else if - else statement and brackets

When the first if is followed by ...READ MORE

Jun 14, 2022 in Data Analytics by Sohail
 • 3,040 points • 1,031 views
0 votes
1 answer

Polynomials as functions in R

 this will work _polynomial = function(x) { ...READ MORE

Jun 24, 2022 in Data Analytics by Sohail
 • 3,040 points • 630 views
0 votes
0 answers

Send str() output to View()

A dataset containing 313 variables is the ...READ MORE

Jun 30, 2022 in Data Analytics by avinash
 • 1,840 points • 365 views
0 votes
1 answer

How to use the strsplit function with a period

Since the dot has a specific meaning ...READ MORE

Jun 24, 2022 in Data Analytics by Sohail
 • 3,040 points • 797 views
0 votes
0 answers

Load csv file in R

Is it possible to import a csv ...READ MORE

Jun 30, 2022 in Data Analytics by avinash
 • 1,840 points • 353 views
0 votes
1 answer

How can I make a list of lists in R?

Lists of lists are simple to create. list1 ...READ MORE

Jun 24, 2022 in Data Analytics by Sohail
 • 3,040 points • 612 views
0 votes
0 answers

How can I rbind multiple single-value rows to my data.frame?

0 What follows functions as expected: Data.frame(c(1, 2, 3)) ...READ MORE

Jun 24, 2022 in Data Analytics by Avinash
 • 1,260 points • 549 views
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