Most answered questions in Data Analytics

0 votes
2 answers
0 votes
2 answers

Error when executing write.csv function in R

row.names = F READ MORE

Mar 5 in Data Analytics by anonymous
411 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 in Data Analytics by Goose
• 140 points
1,949 views
+1 vote
2 answers

How to segment documents into phrases in text mining using R?

You can do this in R using ...READ MORE

Nov 15, 2018 in Data Analytics by sandeep
• 260 points
89 views
0 votes
2 answers

what are the different ways of getting/reading data into for cleaning

Most used functions for reading or extracting ...READ MORE

Aug 22 in Data Analytics by anonymous
• 31,840 points
33 views
0 votes
2 answers

What are the steps in data analysis process?

Well explained @Maverick, In simple words the ...READ MORE

Aug 22 in Data Analytics by anonymous
• 31,840 points
105 views
0 votes
2 answers

Import csv excel file in R

Hi. Check out your filename and the ...READ MORE

Aug 22 in Data Analytics by anonymous
• 31,840 points
68 views
0 votes
2 answers

Stacked barchart - R programming with ggplot2

Use position = stack inside geom_bar() ggplot(mydata, aes(x = ...READ MORE

Aug 22 in Data Analytics by anonymous
• 31,840 points
55 views
0 votes
2 answers

Error: could not find function - R Programming

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

Aug 22 in Data Analytics by anonymous
• 31,840 points
5,120 views
0 votes
2 answers

What are the skills required for data science?

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

Apr 4 in Data Analytics by MrBoot
• 1,210 points
44 views
0 votes
2 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
• 42,540 points
62 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
• 1,610 points
75 views
0 votes
2 answers
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 in Data Analytics by anonymous
• 31,840 points
112 views
0 votes
2 answers

What is nominal data and how to deal with it?

Nominal Data: Nominal values represent discrete units and ...READ MORE

Sep 3, 2018 in Data Analytics by shams
• 3,580 points
80 views
0 votes
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
• 3,690 points
159 views
0 votes
2 answers

How do you build a custom function in Python?

Function arguments in Python In Python, Custom functions ...READ MORE

Sep 3, 2018 in Data Analytics by shams
• 3,580 points
41 views
+1 vote
2 answers

avoid producing a eps-graphic with 2 pages by mixing traditional and grid graphics

The bv_set() is missing from your code hence ...READ MORE

Aug 27, 2018 in Data Analytics by Anmol
• 1,610 points
54 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 in Data Analytics by anonymous
3,918 views
+1 vote
2 answers

How can I get experience in Data Science as a fresher?

Work on projects of your own. It’s tough, ...READ MORE

Aug 9, 2018 in Data Analytics by Anmol
• 3,620 points
46 views
0 votes
2 answers

What will be first step to be a data scientist?

Your first steps towards becoming a top ...READ MORE

Aug 8, 2018 in Data Analytics by zombie
• 3,690 points
49 views
0 votes
2 answers

Significance of P-value in statistical data

Refer the following points explaining the significance ...READ MORE

Aug 10, 2018 in Data Analytics by Atul
• 180 points
50 views
0 votes
2 answers

Sorting algorithms available in R

R basically supports two different types of ...READ MORE

Aug 16, 2018 in Data Analytics by zombie
• 3,690 points
863 views
0 votes
2 answers

What is data science?

Data Science is the practice of: Asking questions (formulating hypothesis), ...READ MORE

Aug 2, 2018 in Data Analytics by Anmol
• 3,620 points
49 views
0 votes
2 answers

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

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

Mar 6 in Data Analytics by Seema
• 140 points
1,291 views
0 votes
2 answers

Why should anyone learn Python instead of R for machine learning?

Machine learning is the latest technology everyone ...READ MORE

Apr 13 in Data Analytics by SA
• 1,030 points
105 views
0 votes
2 answers

What is the difference between correlation and covariance?

Correlation and Co-variance both are used as ...READ MORE

Jul 24, 2018 in Data Analytics by Anmol
• 3,620 points
1,785 views
0 votes
2 answers

Different data structures in R

The different data types in R are ...READ MORE

Aug 26 in Data Analytics by anonymous
• 31,840 points
76 views
0 votes
2 answers

How does data cleaning play a vital role in data analysis

Data is the core you do your ...READ MORE

Jul 23, 2018 in Data Analytics by Anmol
• 3,620 points
270 views
+1 vote
2 answers

How to handle outliers

There are multiple ways to handle outliers ...READ MORE

Jul 23, 2018 in Data Analytics by Anmol
• 3,620 points
50 views
0 votes
2 answers

Recommender Systems

hello, i have one project which is based ...READ MORE

Mar 29 in Data Analytics by JAY SHAH
143 views
0 votes
2 answers

PCA model in R

Principal component analysis (PCA) is routinely employed on ...READ MORE

Jul 18, 2018 in Data Analytics by zombie
• 3,690 points
201 views
0 votes
2 answers

Apply function in R

apply Description: “Returns a vector or array or ...READ MORE

Jul 10, 2018 in Data Analytics by zombie
• 3,690 points
47 views
0 votes
2 answers

Clustering in R

Clustering is a type of unsupervised learning ...READ MORE

Jul 9, 2018 in Data Analytics by zombie
• 3,690 points
62 views
0 votes
2 answers

Replacing a row in pandas data.frame

key error. I love python READ MORE

Feb 18 in Data Analytics by anonymous
2,587 views
0 votes
2 answers

Counting the frequency of unique values - R

Try this, lapply(mtcars,function(x){ length(unique(x))}) READ MORE

Aug 20 in Data Analytics by anonymous
• 31,840 points
5,303 views
0 votes
2 answers

Locating row index of a column which has the maximum value - R

Hi, Nirvana You can also try this. which(iris$Sepal.Length == ...READ MORE

Aug 21 in Data Analytics by anonymous
• 31,840 points
132 views
0 votes
2 answers

Vector vs List in R

Well, you are right in  saying that ...READ MORE

May 8, 2018 in Data Analytics by anonymous
42 views
0 votes
2 answers

Splitting the data into training and testing sets - R

Hi, Try like this. train = sample(x = ...READ MORE

Aug 20 in Data Analytics by anonymous
• 31,840 points
1,261 views
0 votes
2 answers

How to set working directory to source file location in R?

Hi,  I'm not sure about the command but you ...READ MORE

Aug 20 in Data Analytics by Cherukuri
• 31,840 points
3,226 views
0 votes
2 answers

How to subset rows containing NA in a chosen column of a data frame?

You can give this a try. subset(dataframe, is.na(dataframe$col2)) ...READ MORE

Aug 21 in Data Analytics by anonymous
• 31,840 points
126 views
0 votes
2 answers

How can we count TRUE values in a logical vector?

Hi, You can get a count of all ...READ MORE

Aug 20 in Data Analytics by anonymous
• 31,840 points
2,553 views
0 votes
2 answers

How to write lines to a text file in R?

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

May 24 in Data Analytics by anonymous
2,545 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 in Data Analytics by anonymous
• 31,840 points
5,677 views
0 votes
2 answers

How to sum a variable by group in R?

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

Jul 31 in Data Analytics by Cherukuri
• 31,840 points
10,646 views
0 votes
2 answers

How to count the number of elements with the values in a vector?

Use dplyr function group_by(). > n = as.data.frame(num) > ...READ MORE

Aug 21 in Data Analytics by anonymous
• 31,840 points
131 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 5 in Data Analytics by anonymous
3,630 views
0 votes
2 answers

How to change column names of a Data frame?

Try this way - names(data frame) <- ...READ MORE

Aug 26 in Data Analytics by anonymous
• 31,840 points
94 views
0 votes
2 answers

How to sort a data frame by columns in R?

You can use dplyr function arrange() like ...READ MORE

Aug 21 in Data Analytics by anonymous
• 31,840 points
152 views
0 votes
2 answers

How to count unique values in R?

You can try this way, as.data.frame(v) %>% count(v) READ MORE

Aug 8 in Data Analytics by anonymous
1,759 views