Find next 2 rows with same value and paste rows into new columns behind...
This is the first time I am posting a question here, so please be gentle :) I have a data frame with goal and corner statistics from the English football/soccer league (Premier League) with one game...
View ArticleGet combinations of two elements in R
I need to find all combinations between two factors with two levelsSex: Male-Female Race: White-NonwhiteI want my output to be: Male-White Female-White Male-Nonwhite Female-Nonwhite
View ArticleSales prediction and effect size regressors with Prophet or Lineair Regression
I am using Prophet and Linear Regression in order to:Predict sales on day level / store level;Understand the effect size of my repressors (x variables).I don’t necessarily want to stick to these...
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Understanding how `levelplot` is done in R
On the example given below, which can easily be done using the levelplot function of R, I would like to ask a question of interpretation: if, for example, I have several values with drat on the x axis,...
View ArticleHow do I push data from a RStudio data frame to MSSQL server table (new)
I have set up DB server in my local system and tried pushing data in a new table but unable to push data, I have connected MS SQL server using DSN i.e. "VB"con <- dbConnect(odbc::odbc(), "VB") Tried...
View ArticleScraping html table and its href Links in R when there are more than one...
My question is actually the same as the one asked here : Scraping html table and its href Links in RBut the solution provided does not work in my case...or there is something I didn't understand... In...
View ArticleWhy is a keras neural network model with one output neuron so much better...
Using the code below I train two networks. Both networks are identical but the second network (model2) has two output neurons. The target output for the first network (model1) is the sale price of some...
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How to calculate the elder generation’ maximum education year in one family
Suppose I have dataframe like this: family relationship meanings edu 1 1 A respondent 12 2 1 B respondent's spouse 18 3 1 C A's father 10 4 1 D A's mother 9 5 1 E1 A's first son 15 6 1 F1 E1's spouse...
View Articleperforming all possible linear regressions between 1 variable and a list of...
I am using the following code ( which was developed in a previous post) for the following task: performing all possible linear regressions between the first variable and the other variables and saving...
View ArticleHow to filter a very large csv in R prior to opening it?
I'm currently trying to open a 48GB csv on my computer. Needless to say that my RAM does no support such a huge file, so I'm trying to filter it before opening. From what I've researched, the most...
View Articler Are there any changes I can make to speed up my parallelized code that...
The code below is a parallel version of a some code I had written earlier. Both versions do what they are supposed to. Both versions take about 5.7 minutes to complete. Constructing a reproducible...
View ArticleHow to use a non-default colorscale in R plotly chloropleth maps?
I'm creating a chloropleth map in R using plotly, and the only trouble I'm having is setting a different colorscale. I would like to use the magma colorscale from the viridis package, but I can't seem...
View ArticleCreate dataframe of all combinations of a list
I have dataframe of integers from 1 to 900. nodelist <- data.frame(node_id=seq(1:900)) I want to create a new dataframe of two columns (top, bottom) that has each combination of the vector nodelist....
View ArticleFinding source code of R packages and potentially making changes
I would like to find and read the source code of an R package. Let's say I would like to find purrr and figure out the difference between map_chr() and find out if it is using lapply().purrr directory...
View ArticleTrying to write an R function: is it the For Loop or the numeric vector that...
I have a function like this (see below) and I genuinely cannot understand why it doesn't work.The for loop itself, when run separately (not inside of a function) does work perfectly but the function...
View ArticleHow to install "Hmisc" in R
install.packages("Hmisc") Warning in install.packages : unable to access index for repository https://cran.rstudio.com/src/contrib: cannot open URL 'https://cran.rstudio.com/src/contrib/PACKAGES'...
View ArticleR cannot find a conda function: Error in instalation of ee_grab
I follow the directions of https://github.com/JesJehle/earthEngineGrabR and try to install ee_grab.However, I always get the following message:Error: Installation problem Error: Error 1 occurred...
View ArticleR html_nodes() function giving error Unexpected character '$'
I am trying to extract financial data from Yahoo Finance. When I am running, it is giving error"Error in tokenize(css) : Unexpected character '$' found at position 19"urlYCashflow <-...
View ArticleDcast in R basis repeated
I have data named as my_data. The amount of data is > 100000. Sample output is like belowid source 8166923397733625478 happimobiles 8166923397733625478 Springfit 7301100145962413274 Duroflex...
View ArticleNumber within r being wrongly recognized
I have a row of data that is created through ifelse statement of proper data. mutate(yrsatrisk = ifelse(!is.na(Age_at_death), as.numeric(Age_at_death), ifelse(!is.na(Age_at_last_update),...
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