Recent questions tagged R

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r - Mutate multiple variable to create multiple new variables

Let's say I have a tibble where I need to take multiple variables and mutate them into new multiple new ... were registered Thanks in advance! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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641 views

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r - Calculate Euclidean distance matrix using a big.matrix object

I have an object of class big.matrix in R with dimension 778844 x 2. The values are all integers (kilometres ... talking out-of-memory big. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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520 views

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r - Factors ordered vs. levels

Can someone explain what is the use of the "ordered" parameter in R? R says: ordered logical flag to determine if ... " and "levels" are used. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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571 views

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r - Give name to list variable

so we know that R have list() variable, and also know that R has function call names() to give ... variables without playing with its name? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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797 views

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r - adding empty graphs to facet_wrap in ggplot2

I am trying to create 3 plots where all the panels should have the same size, so I thought the solution might be ... get it to run in my case. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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640 views

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r - merging a large list of xts objects

I have a list of xts objects that are mutually exclusive days. I would like to merge the list into one large xts ... the list is an xts object. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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495 views

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r - Annotation above bars:

dodged bar plot in ggplot again has me stumped. I asked about annotating text above bars on here a few weeks back ... label=count, vjust=-.6)) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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546 views

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r - Identify duplicates and mark first occurrence and all others

I'm trying to identify all rows which are represented twice or more in a matrix. For example: m <- matrix(c(1,2, ... 3 times in m's column 1. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Merge error : negative length vectors are not allowed

I tried to merge two data.frames, and they are like below: GVKEY YEAR coperol delta vega firm_related_wealth 1 ... how to solve this issue. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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682 views

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r - facet_wrap add geom_hline

I have the following code for my ggplot - the facet_wrap function draws out 20 plots on the page for each Name and ... (~ Name, ncol = 5) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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894 views

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r - Plot background colour in gradient

This code produces the first plot below: water.height <- seq(0, 5, 1) y <- seq(0, 1500, length.out = ... the same blue background with R code? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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496 views

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r - Preserving large numbers

I am trying to read a CSV file that has barcodes in the first column, but when R gets it into a ... back to an integer returns 167000000000. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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637 views

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r - Current time in ISO 8601 format

For logging purposes, how can an R script get the current date and time, in the UTC time zone, as an ISO 8601 ... "2015-04-08 11:38:22 BRT" See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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703 views

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r - Align multiple ggplot2 plots with grid

Context I want to plot two ggplot2 on the same page with the same legend. http://code.google.com/p/gridextra/wiki/ ... ="", left = "") Output See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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438 views

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r - How can I make rJava use the newer version of java on osx?

I am following this tutorial on rJava: http://cran.r-project.org/web/packages/helloJavaWorld/ ... " fi export DYLD_FALLBACK_LIBRARY_PATH See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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507 views

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r - Shifting a column down by one

Say I have a data.frame that looks like this df <- data.frame(AAA = rep(c(NA,sample(1:10, 1)),5 ... pattern might vary through the data.frame. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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484 views

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r - Consistent color scale and legend between plots when not all levels of a grouping variable are present in the data

I have data which is being sequentially added to a data.frame in R. I am creating plots every so often showing ... a variable which isn't used. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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512 views

1 answer

r - Plotting during a loop in RStudio

I am implementing a solution to the Traveling Salesman Problem (TSP) in R (simulated Annealing) and I want ... , consider this question solved. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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586 views

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r - Passing data within Shiny Modules from Module 1 to Module 2

I dont have a reproducible example as the question is more on how modules work. I am trying to understand ... great help thanks for your help See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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674 views

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r - ggplot2: Font Style in label expression

Changing font faces and sizes works well without expression in the labels. Here is the code where I've ... would be highly appreciated. Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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402 views

1 answer

r - DT[!(x == .)] and DT[x != .] treat NA in x inconsistently

This is something that I thought I should ask following this question. I'd like to confirm if this is a ... answering this question at all). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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644 views

1 answer

r - How to export S3 method so it is available in namespace?

I am creating a package and for S3 methods I export them using ##' @method predict myclass ##' @export ... predict.myclass in the console? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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500 views

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r - Applying a function to two lists?

To find the row-wise correlation of two matrices X and Y, the output should have a correlation value for row 1 ... this be done using "lapply"? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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643 views

1 answer

r - activate tabpanel from another tabpanel

I want when i start the application the tab panel tab2 = desactivated, and will be activated once i click the button ... output, session){ } )) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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492 views

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r - Why this behavior when coercing a list to character via as.character()?

In the process of (mostly) answering this question, I stumbled across something that I feel like I really should ... get output of this form? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

781 views

1 answer

r - Combining new lines and italics in facet labels with ggplot2

I have a problem getting some words used in facet labels in italics. I use the following code to create new lines for ... .names = c(NA, -86L)) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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539 views

1 answer

r - Add text on top of a facet dodged barplot using ggplot2

I'd like to plot a dodged barplot for two different years and put the revenue numbers on top of the bar accordingly ... = FALSE)), color="blue") See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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580 views

1 answer

r - How can I prevent rbind() from geting really slow as dataframe grows larger?

I have a dataframe with only 1 row. To this I start to add rows by using rbind df #mydataframe with only one ... make this type of code faster? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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