How to replace some characters after the last dot with their lower cases
A simple question but I cannot solve it. I got a string like this mail address:ma <- "something@somewhere.COM"My goal is to get:"something@somewhere.com"So to put the to lower cases the part after...
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Get the path of current script
I would like to set the working directory to the path of current script programmatically but first I need to get the path of current script.So I would like to be able to do: current_path = ...retrieve...
View Articlepdf_text function not releasing ram (on windows)
pdf_text() is not releasing RAM. Each time the function runs, it uses more RAM, and doesn't free it up until the R session is terminated. I am on windows.Minimal example# This takes ~60 seconds and...
View ArticleMann-Whitney-Wilcoxon Test on two samples of financial ratios with different...
I have two dataframes of financial ratios differing in sample size. I'd like to perform a non-parametric test to compare each ratio in the two samples. How do I efficiently combine the dataframes in...
View ArticleAdd summarize variable in multiple statements using dplyr?
In dplyr, group_by has a parameter add, and if it's true, it adds to the group_by. For example:data <- data.frame(a=c('a','b','c'), b=c(1,2,3), c=c(4,5,6)) data <- data %>% group_by(a,...
View ArticleRolling regression with expanding window in R
I would like to do a rolling linear regression, with expanding window, between two variables in a data frame, grouped by a third categorical column. For example, in the toy data frame below, I would...
View ArticleProblem with CoverageHeatmap (Bioconductor) function in R
I have 2 sets of pairwise alignments, where query genome 1 (q1) is aligned to the reference genome and query genome 2 (q2) is aligned to the same reference genome. Therefore, I have both alignments...
View ArticleScrap free text that has changing number of elements in different websites
I am scrapping a database of companies available in this format, where each company is under a different website, defined by the number at the end of the url (example above is 15310; see url). I am...
View ArticleDefine a new type of for loop in R?
I am trying to work out how to define a custom for loop in R, or if that's even possible.ExamplesA couple of things that would be nice to have are something equivalent to ruby's each_with_index, as...
View ArticleDimension of the multi barplot using ggplot2 facet_wrap() in R
Please I wonder to send a pdf file containing the multi barplot I generated using ggplot2 / geom_bar() and facet_wrap(). It is required that the dimension of each single barplot must measure 2 cm * 2...
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in R, please help condensing x axis in ggplot2, binary x value
looking at some nfl data.. I am looking to condense my x axis.. my x value is binary.. so I only want to see 0 or 1 yet values in between 0 and 1 are appearing.. so I am seeing .25, .50, .75 and it is...
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Using melt in R to change DF from long to wide [duplicate]
This question already has an answer here:Transpose / reshape dataframe without “timevar” from long to wide format 6 answersI have a very simple data frame called PlantGrowth that I am trying to change...
View ArticleVolcano plot for multiple clusters
I am trying to make a volcano plot for different clusters. I have 2 conditions, untreated vs. treated. I have a differential expression excel file that cellranger generated for me but within the file...
View ArticleCreate Second Dropdown as column values and draw Area chart
I am new to R .I am creating a dashboard with date ranges and I have one dropdown for column names of the data table and I need to create another dropdown of column commenttype(i.e., good or bad) that...
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Order Columns in ggplot
I've tried what others have suggested (Order bars in ggplot and Order Bars in ggplot2 bar graph) for ordering columns and I still can't get it.I have a dataset with a column called "Zap", which has...
View ArticleLooping to restructure data for time series
I have a data frame that I need to restructure for a time series analysis. I have sales data for ITEMS where the date is a YEAR_MONTH value (e.g., 2014_06). I don't care about the date, however; what I...
View ArticleCombine two words in a corpus with R
So here is my code ny <- read.csv2("nyt.csv", sep = "\t", header = T) ny_texte <- as.vector(ny) iterator <- itoken(ny_texte, preprocessor=tolower, tokenizer=word_tokenizer, progressbar=FALSE)...
View ArticleHow to work with special row after group_by in R
I have a data frame something like bellow:amount <- sample(10000:2000, 20) year<- sample(2015:2017, 20, replace = TRUE) company<- sample(LETTERS[1:3],20, replace = TRUE)...
View ArticleHow to perform operations in Stata with different groups for each row
Say that I have these data:clear all input n str6 G1 str6 G2 v desired computed 1 "B""A" 1 5 . 2 "A""A" 2 5.5 . 3 "C""A" 3 4.5 . 4 "A""B" 4 2 . 5 "B""B" 5 2.5 . 6 "C""B" 6 1.5 . end n is observation...
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Tooltip for calculated shares in a stacked and filled bar chart
I've plotted a bar chart in ggplot and converted it using ggplotly. I want the tooltip to display relative and absolute frequencies within each bar of the chart. I try to do this the following way:gg +...
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