Trending questions in Data Analytics

+1 vote
1 answer

How to create polygons around states in leaflet?

Use addPolygons() to create polygons in a ...READ MORE

Oct 29, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 1,439 views
0 votes
1 answer

Reduce markers overlapping in maps

Hey, You can either reduce the font size ...READ MORE

Sep 23, 2019 in Data Analytics by anonymous
 • 3,450 points • 2,264 views
0 votes
1 answer

How does paste function work in R?

Paste function concatenates vectors together. Syntax: paste(v1,v2,sep = ...READ MORE

Oct 29, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 1,008 views
0 votes
1 answer

Intermediate + running sum of vector

Hey, It's quite simple, use the accumulate function ...READ MORE

Oct 29, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 847 views
0 votes
1 answer

How to create a range of dates in R?

Hey, See the below example, > superstore$Order.Date[1] [1] "2014-11-11" > seq(superstore$Order.Date[1],length.out ...READ MORE

Oct 29, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 1,003 views
0 votes
1 answer

Add list elments recursively

You cannot use the sum function on ...READ MORE

Oct 29, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 804 views
0 votes
1 answer

How to crop white space around image(Magick) in R?

@sreenivas, Use image_trim to crop the extra part of ...READ MORE

Oct 28, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 2,133 views
0 votes
1 answer

How to use regular expressions in R?

Set of operators to use for regular ...READ MORE

Nov 2, 2019 in Data Analytics by anonymous
 • 33,050 points • 763 views
0 votes
1 answer

Summarize with a condition

You can provide condition to summarize using ...READ MORE

Aug 7, 2019 in Data Analytics by anonymous
 • 33,050 points • 4,167 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 • 893 views
0 votes
1 answer

Change ggplot2 default color palette

If the scale is continuous, then you can ...READ MORE

Aug 20, 2019 in Data Analytics by anonymous
 • 33,050 points • 3,982 views
0 votes
1 answer

R Shiny Error: evaluation nested too deeply: infinite recursion / options(expressions=)?

Hi Kalpana, This error is due to ...READ MORE

Aug 21, 2019 in Data Analytics by anonymous
 • 33,050 points • 3,554 views
0 votes
1 answer

What is a regex?

A regular expression, regex or regexp is ...READ MORE

Nov 2, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 724 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 • 1,352 views
0 votes
1 answer

Edit list elements when condition is met

You can use regular if condition with ...READ MORE

Oct 31, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 600 views
0 votes
1 answer

Sunburst charts using plotly

See below example library(plotly) p <- plot_ly( labels ...READ MORE

Nov 3, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 2,438 views
0 votes
1 answer

R: Highlight the map portion where zoomed or viewing.

@ch, Use the minimap to show a side ...READ MORE

Oct 14, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 1,147 views
0 votes
1 answer

Truncate numeric values without round off

You can either use substring function or ...READ MORE

Oct 29, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 631 views
0 votes
1 answer

How to combine 2 fields in a dataframe to create a new field?

Use paste command or append function to ...READ MORE

Oct 31, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 700 views
0 votes
1 answer

How to set data type of columns while reading from source?

@ch, Add colClasses attribute to read the statement ...READ MORE

Oct 28, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 767 views
0 votes
1 answer

How to check installed packages from r source?

Use installed.packages() or find.package() function and pass the ...READ MORE

Oct 29, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 732 views
0 votes
1 answer

How to edit the data source from R?

Use edit function like below and pass ...READ MORE

Oct 14, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 1,171 views
0 votes
1 answer

R Shiny: Select input choice inside server function.

Use renderUI function within the server function ...READ MORE

Oct 29, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 2,083 views
0 votes
1 answer

plot function - hide x/y - axis points

hey @ch, Use the below attribute to hide ...READ MORE

Oct 21, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 737 views
0 votes
1 answer

How to add tooltips to ggplot object?

@ashish, you can use ggplotly package to ...READ MORE

Oct 28, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 1,851 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
 • 14,346 views
0 votes
1 answer

how to fill the points of the plot using just plot function?

Hey, I don't think you can make ...READ MORE

Oct 14, 2019 in Data Analytics by anonymous
 • 33,050 points • 989 views
+1 vote
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, 2019 in Data Analytics by anonymous
 • 33,050 points • 13,224 views
0 votes
1 answer

How to create a weighted data set?

HI @ch, Create a list of elements and ...READ MORE

Oct 21, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 682 views
0 votes
1 answer

How to create bins or groups in R?

Use cut functions or group_by function. group_by functions ...READ MORE

Oct 14, 2019 in Data Analytics by kavya
 • 1,089 views
0 votes
1 answer

K Means using elbow method

Elbow method allows the user to know ...READ MORE

Aug 26, 2019 in Data Analytics by anonymous
 • 33,050 points • 3,120 views
0 votes
1 answer

Check if number is armstrong number or not

Hey, # take input from the user num = ...READ MORE

Sep 30, 2019 in Data Analytics by anonymous
 • 33,050 points • 1,642 views
0 votes
1 answer

plot function - hide all ticks

hey @ch, Use below attribute to hide all ...READ MORE

Oct 21, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 665 views
0 votes
1 answer

Do we need to create vectors to create arrays in R?

Yes, you need vectors to create arrays. Arrays take vectors in ...READ MORE

Oct 29, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 612 views
0 votes
1 answer

Manage length of field values

Hi, Use str_pad() function to format the length ...READ MORE

Oct 23, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 701 views
0 votes
1 answer

Donut chart - R

@Kruthi, Refer to this blog on how to ...READ MORE

Oct 28, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 1,913 views
0 votes
1 answer

How to find the difference wrt previous value in list/vector?

diff() function returns the difference between numbers ...READ MORE

Oct 16, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 831 views
0 votes
1 answer

List should be atomic

@ch, A few functions only work with an ...READ MORE

Oct 28, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 553 views
0 votes
1 answer

How to create heat maps in R?

Use heatmap() to create heatmaps. > heatmap(as.matrix(mtcars)) See below ...READ MORE

Oct 28, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 730 views
0 votes
1 answer

Add secondary axis as a dual axis in R plot

You can add a secondary axis in ...READ MORE

Nov 4, 2019 in Data Analytics by keerthi
 • 2,178 views
0 votes
1 answer

What are the different ways to manage NA's in data?

A few functions to manage NA are ...READ MORE

Oct 16, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 784 views
0 votes
1 answer

How to display randomforest object?

Refer to this article here, https://stats.stackexchange.com/questi ...READ MORE

Oct 29, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 835 views
0 votes
1 answer

Read table from webpage and convert it into dataframe

Hi Kalyan, Use html_table to create tables from ...READ MORE

Sep 17, 2019 in Data Analytics by prajwal
 • 1,994 views
0 votes
1 answer

create data.frame with random numbers in R

First create a matrix with random numbers ...READ MORE

Sep 24, 2019 in Data Analytics by Debasmita Das
 • 3,365 views
0 votes
1 answer

compare actual values vs predicted values in decision tree

You can compare test data using table() ...READ MORE

Aug 25, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 3,001 views
0 votes
1 answer

How to provide names for list elments in r?

There are 2 ways to add names ...READ MORE

Oct 14, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 794 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 • 14,952 views
0 votes
1 answer

Hide and show labels by default in maps

Hi, You need to just add an attribute ...READ MORE

Sep 23, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 1,688 views
0 votes
1 answer

Change the order of legend values in a plot in R

@prardhana, Use scale_fill/color/size_discrete/contin....(labels = c()). compare both to see ...READ MORE

Nov 4, 2019 in Data Analytics by payal
 • 2,120 views
+1 vote
1 answer

Write r output into table (in database)

Use dbWriteTable () function and set overwrite ...READ MORE

Oct 14, 2019 in Data Analytics by Cherukuri
 • 33,050 points • 1,119 views
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