Unanswered questions in Data Analytics

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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
617 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
322 views
0 votes
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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
332 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
311 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
306 views
0 votes
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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
252 views
0 votes
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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
275 views
0 votes
0 answers

Get row and column indices of matches using `which()`

months and 9 years ago updated ten months ...READ MORE

Jun 27, 2022 in Data Analytics by avinash
• 1,840 points
259 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
419 views
0 votes
0 answers

Why 'nrow()' function doesn't seem to work within 'summarise()' function?

See the code below: library(dslabs) \sdata(gapminder) gapminder percent > ...READ MORE

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

Standard Deviation in R Seems to be Returning the Wrong Answer - Am I Doing Something Wrong?

An easy illustration of standard deviation calculation: The ...READ MORE

Jun 27, 2022 in Data Analytics by avinash
• 1,840 points
336 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
1,120 views
0 votes
0 answers

Looping with arima in R

I'm attempting to use the for function ...READ MORE

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

Using One Sample Kolmogorov Smirnov Test in R for in-group Variation/ Distribution

0 In order to compare the voice characteristics ...READ MORE

Jun 24, 2022 in Data Analytics by Sohail
• 3,040 points
429 views
0 votes
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Understanding output of rbind function when a list is passed as argument

While using R to practise fundamental matrices ...READ MORE

Jun 24, 2022 in Data Analytics by Avinash
• 1,260 points
342 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
429 views
0 votes
0 answers

paste() within another function

I'm not clear why the first function ...READ MORE

Jun 24, 2022 in Data Analytics by Avinash
• 1,260 points
265 views
0 votes
0 answers

pass character strings to ggplot2 within a function

In order to streamline my work process, ...READ MORE

Jun 24, 2022 in Data Analytics by Avinash
• 1,260 points
455 views
0 votes
0 answers

Is there a quantile function in R that includes both given x and given probs?

I need a R function that computes ...READ MORE

Jun 23, 2022 in Data Analytics by avinash
• 1,840 points
260 views
0 votes
0 answers

What is meant by "An Object" when we use Str() Function in R

Everyone agrees that str() reveals an object's ...READ MORE

Jun 23, 2022 in Data Analytics by avinash
• 1,840 points
266 views
0 votes
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What's the use of which?

I'm trying to get a handle on ...READ MORE

Jun 23, 2022 in Data Analytics by avinash
• 1,840 points
275 views
0 votes
0 answers

https://www.edureka.co/community/183864/mean-of-categorical-variables-from-plyr-package

I'm modelling with the fpp2 package's data ...READ MORE

Jun 17, 2022 in Data Analytics by Avinash
• 1,260 points
206 views
0 votes
0 answers

R package: Write own summary function (method)

I created a R package that fits ...READ MORE

Jun 14, 2022 in Data Analytics by Avinash
• 1,260 points
326 views
0 votes
0 answers

Function to clear the console in R and RStudio

I'm curious if there is a way ...READ MORE

Jun 10, 2022 in Data Analytics by Avinash
• 1,260 points
433 views
0 votes
0 answers

R: use of "where" to select rows by matching an element from a list

I'm trying to utilise R's "where" function ...READ MORE

Jun 10, 2022 in Data Analytics by Avinash
• 1,260 points
632 views
0 votes
0 answers

Why I cannot save mutate result in r?

I tried to rank "date" within each ...READ MORE

Jun 9, 2022 in Data Analytics by Avinash
• 1,260 points
265 views
0 votes
0 answers

How to generate correlation plot of my data.frame in R?

I have a df and I want ...READ MORE

Jun 9, 2022 in Data Analytics by Avinash
• 1,260 points
224 views
0 votes
0 answers

How to create a data summary function?

I'm trying to create a function that ...READ MORE

Jun 9, 2022 in Data Analytics by Avinash
• 1,260 points
240 views
0 votes
0 answers

What does na.rm=TRUE actually means?

Whenever we want to have NA in ...READ MORE

Jun 9, 2022 in Data Analytics by Avinash
• 1,260 points
699 views
0 votes
0 answers

Error in xy.coords(x, y, xlabel, ylabel, log) : argument "x" is missing, with no default

Hi, my code is showing this, what's ...READ MORE

Sep 7, 2020 in Data Analytics by Nurdiana
• 120 points

recategorized Sep 7, 2020 by Gitika 1,836 views
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i want downloded previous classes of data science webinars

Aug 10, 2020 in Data Analytics by Chandra
• 120 points
387 views
0 votes
0 answers

How can i change elements in r programming language

If A=1,2,3 and B=1,2,3,4 and C=20,44,39 in ...READ MORE

Jul 23, 2020 in Data Analytics by Arpita
• 120 points
448 views
+4 votes
0 answers

R programming Error: Error in if (d >= 0) { : missing value where TRUE/FALSE needed

Here is my code: for(i in 1:(nrow(moon_sub))){   l_df[i,] <- ...READ MORE

Jun 24, 2020 in Data Analytics by Molly
• 160 points
864 views
0 votes
0 answers

error while executing the OAuthFactory statement

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May 12, 2020 in Data Analytics by AKULA.
• 120 points
562 views
+1 vote
0 answers
0 votes
0 answers

How can I create a graph for R? (barplot)

I want to draw a graph of ...READ MORE

Apr 10, 2020 in Data Analytics by anonymous
• 120 points
410 views
0 votes
0 answers

Rstudio "Erreur : unexpected symbol in:"

Bonjour, I'm new to Rstudio programming. I ...READ MORE

Mar 3, 2020 in Data Analytics by Juli -
• 120 points

edited Mar 4, 2020 by Gitika 1,367 views
+4 votes
0 answers

I was unable to cluster the data points using dbscan in R programming

After using dbscan package I was given with ...READ MORE

Feb 2, 2020 in Data Analytics by ramthotahappy
• 160 points
837 views
+4 votes
0 answers

Counting the frequency of user activities - R

Within a data frame (see below), I ...READ MORE

Dec 3, 2019 in Data Analytics by anonymous
• 160 points
1,282 views
0 votes
0 answers

How to convert a table into tree?

I used getTree() and randomForest object to ...READ MORE

Oct 22, 2019 in Data Analytics by ch
• 3,450 points
858 views
0 votes
0 answers

How to visualize the randomForest model in R?

How to visualize the randomForest model in ...READ MORE

Oct 22, 2019 in Data Analytics by ch
• 3,450 points
616 views
0 votes
0 answers

How to get the value passed through url from one page to another in R?

How to get the value passed through ...READ MORE

Oct 16, 2019 in Data Analytics by ch
• 3,450 points
432 views
+1 vote
0 answers

How to zip a folder with r image files from RStudio?

How to zip a folder with r ...READ MORE

Oct 10, 2019 in Data Analytics by ch
• 3,450 points
1,125 views
0 votes
0 answers

How to choose best variables for classification and regression models?

How to choose the best variables for ...READ MORE

Oct 7, 2019 in Data Analytics by ch
• 3,450 points
598 views
0 votes
0 answers

Allow user input on maps

Can anyone explain how to add controls ...READ MORE

Sep 24, 2019 in Data Analytics by ch
• 3,450 points
609 views
0 votes
0 answers

Add multiple maps over each other

How to multiple layers of maps over ...READ MORE

Sep 19, 2019 in Data Analytics by anonymous
• 33,030 points
639 views
0 votes
0 answers

fix the map area using leaflet and use ggplot

I created a map using leaflet and ...READ MORE

Sep 18, 2019 in Data Analytics by anonymous
• 33,030 points
549 views