Get WEEK from the date in R Language [duplicate]
This question already has an answer here:Getting week number from a date format 1 answerI am trying to understand and executing R code. I am new in R and have to run one R script in my system, which is...
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Scaling of horizon chart on R
I have just started to learn R and I have created a horizon chart using R. However, the axes are not appearing properly. Is there any way which I could make the chart bigger and easier to see?This is...
View ArticlePanel data: Adding data by introducing more rows? In R
I have two data.frames both include yearly data on some "ID" -lets say companies. df1 contains data on a national level for example information on the company's age. df2 contains data on state level...
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Function, for loop, which, pairtrading
I have a date set (df) with 4 columns: date, price_1, price_2, ratio ratio = price_1/price_2 it has something to do with pairs trading. I need to determine when a position is opened, and closed. A...
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ggplot of Time Series Forecast of Daily Data
I have some daily data that look like below: Date Weight 1 2019-09-18 69.4 2 2019-09-19 69.3 3 2019-09-20 69.8 using the package forecast and ggfortifyI was able to get a graph that looks like the...
View ArticleR function for simple lookup replacement of excel
I want to extract the values form file 2 to file matching the values in indicated columns. It is a simple lookup function in Excel. but many solutions given are based on matching column names which I...
View Articleoptimized rolling functions on irregular time series with time-based window
Is there some way to use rollapply (from zoo package or something similar) optimized functions (rollmean, rollmedian etc) to compute rolling functions with a time-based window, instead of one based on...
View ArticleReversing normalized values on a partial dependency plot in R
I am trying to explain my MARS model (for classification). I created a partial dependency plot based on my model:https://imgur.com/39hdHEpAs you can see I have monthly income feature on the x-axis and...
View ArticleProgress_bar with neuralnet
I teach a neural network on a large amount of data ~ 300k lines. How can I follow the process inside neuralnet? I think something with progress_bar (), but I don’t know how to connect it to...
View ArticleR: calculate number of distinct categories in the specified time frame
here's some dummy data: user_id date category 27 2016-01-01 apple 27 2016-01-03 apple 27 2016-01-05 pear 27 2016-01-07 plum 27 2016-01-10 apple 27 2016-01-14 pear 27 2016-01-16 plum 11 2016-01-01 apple...
View ArticleExamples of golem_opts when running app using the golem package
I've been trying to develop more advanced apps using this new golem package in R's Shiny and came across this golem_opts that might be interesting, but still haven't seen no one using it. Can someone...
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my codewars function is failing tests but unsure why
I'm trying to complete 'Help the bookseller !' on codewars.Here are the details:A bookseller has lots of books classified in 26 categories labeled A, B, ... Z. Each book has a code c of 3, 4, 5 or more...
View ArticleFinding and Filling Missing Observations (Whole Rows not NA Values) with Mean...
I am hoping to get some help identifying:The location of missing observations when no NA values are present (entire row is missing).Create a row for the missing data with mean values based on mean...
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Determine positions
I have a date set (df) with 4 columns: date, price_1, price_2, ratio ratio = price_1/price_2 it has something to do with pairs trading. I need to determine when a position is opened, and closed. A...
View Articlemap2 over two lists and create a matrix in a new list
I have two lists, each with 2 observations.I would like to use map2 to create a new list and set up a matrix. What I currently have is the following:library(xgboost) dtrain <- map2( X_list, Y_list ~...
View Articlenote when sending new version of package to cran "checking CRAN incoming...
I am aware that this issue has been answered before, and that I am supposed to ignore that message, however, when I send the package to cran I get an automatic response from Uwe Ligges stating:Dear...
View ArticleMutate function to columns except few cells
I have got a dataset where I need to round of values for few columns at once. I have applied mutate function to do this. But in the columns there are some texts as well that needs to excluded, For...
View ArticleCalculate the number of occurrences of a specific event in the past AND...
this question is a modification of a problem I posted here where I have occurrences of a specific type on different days, but this time they are assigned to multiple users, for example:df =...
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changing colors of geom_col ggplot2 to show categorical variable at 3 sites
Long time fan of this site, first time user though. Been searching for a similar/working result for this question. I am trying to show the PROPORTION that each level of a 2 level factor appear at three...
View ArticleSeek and replace certain values in R
I know that this has been asked thousand times already but the answers don't work for me. I have a big dataset and need R to automatically seek and replace certain values in certain columns for me.I...
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