Most viewed questions in Data Science

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How to plot two histograms together in R?

I have two data frames, one each ...READ MORE

Jul 22, 2022 in Data Science by avinash
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NA while using strptime function

Version 1.0.136 of R Studio for Windows ...READ MORE

Jul 9, 2022 in Data Science by avinash
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Calculate correlation with cor(), only for numerical columns

I have a dataframe and would like ...READ MORE

Jun 24, 2022 in Data Science by Sohail
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What is the difference between rm() and rm(list=ls())?

The majority of items I've read. They ...READ MORE

Jul 5, 2022 in Data Science by avinash
 • 1,840 points • 540 views
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Stepwise AIC using forward selection in R

In R, I'm attempting to perform a ...READ MORE

Jun 24, 2022 in Data Science by Sohail
 • 3,040 points • 534 views
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Explicitly calling return in a function or not

A while back, Simon Urbanek from the ...READ MORE

Jul 6, 2022 in Data Science by avinash
 • 1,840 points • 532 views
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Reasons for using the set.seed function

The requirement is a desire for repeatable ...READ MORE

Jun 20, 2022 in Data Science by Sohail
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How to deal with NaN values in R?

Due of my inexperience with programming and ...READ MORE

Jul 9, 2022 in Data Science by avinash
 • 1,840 points • 514 views
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Fibonacci Sequence in R

Due of my inexperience with programming and ...READ MORE

Jul 5, 2022 in Data Science by avinash
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Determine the data types of a data frame's columns

I'm using R and have loaded data ...READ MORE

Jun 1, 2022 in Data Science by avinash
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Frequency table in R

I'm having trouble with something that ought ...READ MORE

Jul 9, 2022 in Data Science by avinash
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Create a sequence of sequences of numbers

The following sequence should be created in ...READ MORE

Jun 24, 2022 in Data Science by Avinash
 • 1,260 points • 503 views
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How does cut with breaks work in R

I've tried using?cut but haven't been able ...READ MORE

Jul 9, 2022 in Data Science by avinash
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How do I get a list of built-in data sets in R?

Please advise on how to obtain the ...READ MORE

Jul 5, 2022 in Data Science by avinash
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To speed up the tapply function in R, or another function to convert data frame into a matrix

I must turn a sizable dataset into ...READ MORE

Jun 24, 2022 in Data Science by Sohail
 • 3,040 points • 458 views
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Data frames and is.nan()

Sum(is.na(my.df)) worked as predicted when I used ...READ MORE

Jul 20, 2022 in Data Science by avinash
 • 1,840 points • 434 views
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Creating an R dataframe row-by-row

In RStudio, if I execute this code: "1 ...READ MORE

Jul 5, 2022 in Data Science by avinash
 • 1,840 points • 432 views
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unique() for more than one variable

df <- data.frame(yad = c("BARBIE", "BARBIE", "BAKUGAN", ...READ MORE

Jun 24, 2022 in Data Science by Sohail
 • 3,040 points • 429 views
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Get row and column indices of matches using `which()`

Say I have some matrix, for example: m ...READ MORE

Jul 5, 2022 in Data Science by avinash
 • 1,840 points • 423 views
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Why 'nrow()' function doesn't seem to work within 'summarise()' function?

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

Jun 30, 2022 in Data Science by avinash
 • 1,840 points • 422 views
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how to make 2 separate substrings from strsplit in R

When it comes to accessing the elements ...READ MORE

Jun 13, 2022 in Data Science by Avinash
 • 1,260 points • 418 views
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In R, how to get an object's name after it is sent to a function?

I'm trying to find the opposite of ...READ MORE

Jul 5, 2022 in Data Science by avinash
 • 1,840 points • 410 views
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Load csv file in R

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

Jun 27, 2022 in Data Science by avinash
 • 1,840 points • 408 views
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Read an Excel file directly from a R script

How do I open an Excel file ...READ MORE

Jul 9, 2022 in Data Science by avinash
 • 1,840 points • 396 views
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Data frames and is.nan()

I was using sum(is.na(my.df)) to check whether ...READ MORE

Jul 22, 2022 in Data Science by avinash
 • 1,840 points • 385 views
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R console output only shows most recent command in "if" condition

In RStudio, if I execute this code: "1 ...READ MORE

Jul 5, 2022 in Data Science by avinash
 • 1,840 points • 364 views
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what is intelligent automation ?

Feb 19, 2024 in Data Science by Evanjalin
 • 28,990 points • 314 views
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Can you me IPL dataset for Tableau practice

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Apr 25, 2024 in Data Science by Rahul
edited Mar 5 • 175 views
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Correlation and heatmap for dataset having numerical and categorical variables

I want to measure the correlation and ...READ MORE

Mar 1, 2023 in Data Science by Chitrolekha
edited Mar 5 • 169 views
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from diploma EEE to a IT

Hi there,  i am working as a production ...READ MORE

May 3, 2023 in Data Science by Sandeep
edited Mar 5 • 152 views
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How do you handle failover in cloud environments?

In my cloud application, I can’t afford ...READ MORE

Nov 21, 2024 in Data Science by Priyanka
 • 4,500 points • 139 views
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Provide solution for this message on jupyter-IndentationError: expected an indented block

please tell me the indentation error  in ...READ MORE

May 15, 2022 in Data Science by Arushi
edited Mar 4 • 136 views
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How do I prepare different .txt files to analyse and compare the language used in texts ( i.e. sentences and paragraphs) in RStudio?

Hi, I am quite new to using ...READ MORE

May 19, 2022 in Data Science by KARIEN
edited Mar 4 • 127 views
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Heart Disease Using K-NN

error = [] # calculation error for K ...READ MORE

Sep 15, 2022 in Data Science by Himanshu
edited Mar 4 • 90 views
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Converting a nested dictionary into Flattened dictionary

Consider a nested dictionary as follows: {'Fruit': ...READ MORE

Dec 23, 2022 in Data Science by Rahul
edited Mar 4 • 82 views
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What can a data frame do that a tibble cannot?

Tibbles provide a number of benefits over ...READ MORE

Jul 20, 2022 in Data Science by avinash
 • 1,840 points
edited Mar 4 • 70 views
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Dispatch of `rbind` and `cbind` for a `data.frame`

Let's construct a rbind.myclass() function that just ...READ MORE

Jul 20, 2022 in Data Science by avinash
 • 1,840 points
edited Mar 4 • 66 views
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Can you use a loop to repeat a cbind function?

I have 40 dataframes from two dataframes ...READ MORE

Jul 20, 2022 in Data Science by avinash
 • 1,840 points
edited Mar 4 • 64 views
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What can a data frame do that a tibble cannot?

Tibbles provide a number of benefits over ...READ MORE

Jul 20, 2022 in Data Science by avinash
 • 1,840 points
edited Mar 4 • 63 views
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Hi, I am trying Random Forest on data. when I am fitting "rfr.fit(x_train,y_train)" its giving below error.

ValueError: Expected 2D array, got 1D array ...READ MORE

May 16, 2022 in Data Science by Naresh
edited Mar 4 • 63 views
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how to use group_by in a function in R

2 1 The following is my code for the ...READ MORE

Jul 20, 2022 in Data Science by avinash
 • 1,840 points
edited Mar 4 • 60 views
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Dispatch of `rbind` and `cbind` for a `data.frame`

Let's construct a rbind.myclass() function that just ...READ MORE

Jul 20, 2022 in Data Science by avinash
 • 1,840 points
edited Mar 4 • 57 views
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How to properly use the predict function in R

I'll start by giving you some startup ...READ MORE

Jul 20, 2022 in Data Science by avinash
 • 1,840 points
edited Mar 4 • 57 views
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Concatenate two layers Tensorflow.js

I am new to TensorflowJS and I ...READ MORE

Jan 31, 2023 in Data Science by Tejashwini
 • 3,820 points
edited Mar 4 • 55 views
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Is it mandatory to create all the data graphs while performing EDA?

Hi , while performing EDA on any ...READ MORE

Nov 26, 2022 in Data Science by Edureka
edited Mar 4 • 51 views
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Get row and column indices of matches using `which()`

Say I have some matrix, for example: m ...READ MORE

Jul 5, 2022 in Data Science by avinash
 • 1,840 points
edited Mar 4 • 48 views
0 votes
0 answers

In R, how to get an object's name after it is sent to a function?

I'm trying to find the opposite of ...READ MORE

Jul 5, 2022 in Data Science by avinash
 • 1,840 points
edited Mar 4 • 45 views
0 votes
0 answers

Explicitly calling return in a function or not

A while back, Simon Urbanek from the ...READ MORE

Jul 6, 2022 in Data Science by avinash
 • 1,840 points
edited Mar 4 • 42 views
0 votes
0 answers

Why does as.character() return an integer on a list of dates?

I was surpirsed to see R do ...READ MORE

Jul 14, 2022 in Data Science by avinash
 • 1,840 points
edited Mar 4 • 39 views
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Why I cannot save mutate result in r?

This should be a straightforward question. Within ...READ MORE

Jun 10, 2022 in Data Science by Avinash
 • 1,260 points
edited Mar 4 • 37 views
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