Most viewed questions in Data Analytics

0 votes
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
325,191 views
0 votes
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
• 82,880 points
193,563 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
• 65,910 points
118,026 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
117,535 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
• 95,440 points
107,460 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
• 95,440 points
96,306 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
90,975 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
87,383 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
86,839 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
77,705 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
76,092 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
67,406 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
• 8,910 points
56,261 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
47,142 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
44,131 views
0 votes
1 answer

What is set.seed() in R?

Let me explain in simple words, set seed ...READ MORE

Jul 9, 2019 in Data Analytics by anonymous
• 33,030 points
39,004 views
+1 vote
2 answers

How to replace a value in a data frame based on a conditional 'If' statement?

It's easier to convert alpha to characters ...READ MORE

Jun 6, 2018 in Data Analytics by Sahiti
• 6,370 points
36,446 views
+1 vote
3 answers

How to change the value of a variable using R programming in a data frame?

Try this: df$symbol <- as.character(df$symbol) df$symbol[df$sym ...READ MORE

Jan 11, 2019 in Data Analytics by Tyrion anex
• 8,700 points
35,481 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
35,249 views
0 votes
2 answers

What are the differences between overfitting and underfitting?

Overfitting is a modeling error which occurs when ...READ MORE

Aug 8, 2019 in Data Analytics by anonymous
34,349 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
33,253 views
+1 vote
2 answers

How can I drop columns by name in a data frame ?

We can Drop Columns by name in ...READ MORE

Apr 14, 2018 in Data Analytics by zombie
• 3,790 points
28,171 views
+1 vote
1 answer

How to extract every nth element of a vector using R?

m <- 1:50 n<- m[seq(1, length(m), 6)] The above ...READ MORE

May 14, 2018 in Data Analytics by zombie
• 3,790 points
27,945 views
+1 vote
2 answers

What is an RDBMS? Name some examples for RDBMS? What is CRUD?

RDBMS: Relational Database Management System A relational database ...READ MORE

Aug 29, 2018 in Data Analytics by zombie
• 3,790 points
27,689 views
+1 vote
1 answer

How to change fill color in each facet using ggplot2?

You can map the facetting variable to ...READ MORE

May 8, 2018 in Data Analytics by kappa3010
• 2,090 points
24,958 views
0 votes
1 answer

TypeError: 'tuple' object is not callable

Hi, @Prasanna, The “TypeError: ‘tuple’ object is not ...READ MORE

Nov 10, 2020 in Data Analytics by Gitika
• 65,910 points
24,786 views
0 votes
1 answer

Removing outliers from a box-plot - ggplot2 - R

You just have to add 'outlier.shape=NA' inside ...READ MORE

May 31, 2018 in Data Analytics by Bharani
• 4,660 points
24,597 views
0 votes
1 answer

How to add leading zeros in R?

There are several solutions to this. One of ...READ MORE

Apr 30, 2018 in Data Analytics by Sahiti
• 6,370 points
24,229 views
0 votes
1 answer

Change the order of multiple legends in ggplot

Hi Radha, You can change the order of ...READ MORE

Jul 24, 2019 in Data Analytics by Cherukuri
• 33,030 points
23,846 views
0 votes
1 answer

How to convert a list to data frame in R?

Let's assume your list of lists is ...READ MORE

Apr 12, 2018 in Data Analytics by nirvana
• 3,130 points

edited Apr 12, 2018 by nirvana 21,922 views
0 votes
1 answer

R programming error: { : missing value where TRUE/FALSE needed "

This should work: for ( i in 1:dim(m)[[1]] ...READ MORE

May 28, 2019 in Data Analytics by Zulaikha
• 910 points
21,865 views
0 votes
1 answer

How to check if a element is present in the list?

There are multiple functions for this purpose ...READ MORE

Oct 29, 2019 in Data Analytics by Cherukuri
• 33,030 points
21,214 views
0 votes
2 answers

Message saying "would you like to use a private library instead?" when trying to install a package

This question appears if your user environment ...READ MORE

Nov 4, 2019 in Data Analytics by Goose
• 140 points
19,816 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
19,590 views
+1 vote
1 answer

How to convert dataframe columns from factors to characters?

To replace all the variables to character ...READ MORE

Apr 13, 2018 in Data Analytics by BHARANI
• 420 points
19,343 views
0 votes
3 answers

How to write lines to a text file in R?

sink("outfile.txt") cat("hello") cat("\n" ...READ MORE

May 24, 2019 in Data Analytics by anonymous
18,727 views
+2 votes
3 answers

Problem with installation of Wordcloud in anaconda

Using Anaconda Python 3.6 version For Windows ...READ MORE

Aug 7, 2018 in Data Analytics by Priyaj
• 58,090 points
18,378 views
0 votes
1 answer

How to replace all occurrences of a character in a character column in a data frame in R

If you used sub() to replace the ...READ MORE

Jun 29, 2019 in Data Analytics by anonymous
• 33,030 points
17,701 views
0 votes
11 answers

Changing the legend title in ggplot

Hi, you can also try guides() to ...READ MORE

Jul 30, 2019 in Data Analytics by Cherukuri
• 33,030 points
17,264 views
0 votes
3 answers

Code snippet to find number of null values in each column in a dataframe in R

colSums(is.na(data_frame_name)) will return you number of nulls ...READ MORE

Jul 5, 2019 in Data Analytics by sindhu
17,179 views
+2 votes
1 answer

Error in FUN: cannot coerce type 'closure' to vector of type 'character' [No stack trace available] in R

You missed out " " for variables ...READ MORE

Jul 17, 2019 in Data Analytics by Cherukuri
• 33,030 points
16,427 views
0 votes
1 answer

Extract a subset of a data frame based on a condition involving a field

Here are the two main approaches. I ...READ MORE

Jun 19, 2018 in Data Analytics by CodingByHeart77
• 3,740 points
16,084 views
0 votes
2 answers

why we need beeline?

Remote we are connecting to hive with ...READ MORE

Jul 24, 2020 in Data Analytics by K. Raja Yasodhar
15,982 views
0 votes
3 answers

How can I add YAML current date in rmarkdown ?

<$today:MM/dd/yyyy> READ MORE

Mar 25, 2019 in Data Analytics by Anupam Das
15,261 views
0 votes
3 answers

How to select rows in a range from dataframe?

This should do it integer_location = np.where(df.index == ...READ MORE

Dec 16, 2020 in Data Analytics by Roshni
• 10,520 points
14,909 views
0 votes
2 answers

What are the rules to define a variable name in R programming language?

The same rules almost follow for all ...READ MORE

Aug 26, 2019 in Data Analytics by anonymous
• 33,030 points
14,750 views
+1 vote
1 answer

How to add text inside shiny app?

Hi, You can use tahs$h1() to h6() to ...READ MORE

Aug 19, 2019 in Data Analytics by anonymous
• 33,030 points
14,724 views
0 votes
2 answers

How to remove rows with missing values (NAs) in a data frame?

Hi, The below code returns rows without ...READ MORE

Aug 20, 2019 in Data Analytics by anonymous
• 33,030 points
14,551 views
+1 vote
2 answers

What is the difference between LDA and PCA for dimensionality reduction?

Principal Component Analysis (PCA) is an unsupervised ...READ MORE

Mar 7, 2019 in Data Analytics by Seema
• 140 points
14,499 views
0 votes
2 answers

How to use group by for multiple columns in dplyr, using string vector input in R?

data = data.frame(   zzz11def = sample(LETTERS[1:3], 100, replace=TRUE),   zbc123qws1 ...READ MORE

Aug 6, 2019 in Data Analytics by anonymous
13,809 views