Recent questions tagged R

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r - resolve metaMDS error : "veg_distance" not available for .C() for package "vegan"

I keep getting the following error when trying to run metaMDS() from the vegan package: my_mds <- vegan::metaMDS( ... mgcv_1.8-17 tibble_1.3.0 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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965 views

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r - Errorbars in a log scale plot?

So, what is the right way to present error bars when plotting points on a log scale? Because error bars are symetric ... (limits = c(1,150)) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Why subset doesn't mind missing subset argument for dataframes?

Normally I wonder where mysterious errors come from but now my question is where a mysterious lack of error ... well deserved error message? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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807 views

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r - Combinatorial iterator like expand.grid

Is there a fast way to iterate through combinations like those returned by expand.grid or CJ (data.table). These get ... ), sort(res)) # TRUE See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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r - vectorized exponent for pow in Rcpp

Rcpp allows to vectorize some operations, which is great. But for pow only the base number can be a vector, not ... of other things done in C? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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r - Control over legends of multiple layer plot in ggplot2

My question is closely related to R: Custom Legend for Multiple Layer ggplot , and to Format legend for multiple ... my situation. Any ideas? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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780 views

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r - Calculate min and max (range) by group

I have something like this in a data frame: PersonId Date_Withdrawal A 2012-05-01 A 2012-06-01 B 2012-05-01 ... min and max date by 'PersonId' See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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929 views

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r - In aggregate: sum not meaningful for factors

I am trying something that should be simple, any hint on what is going on is very welcomed. I have a large ... etc. but nothing seems to help. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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884 views

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r - Can geom_image() from the ggimage package be made to preserve the image aspect ratio?

When researching this answer, I tried to draw the image strip via geom_image() from the ggimage package but ... draw_image() from cowplot. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - RShiny print current page

How can I print the current page in R shiny web applications? It is possible in HTML by using the command of window. ... { window.print(); }) } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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715 views

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r - Cannot find 'convert' using SaveGIF function in animation package

I'm having trouble with the SaveGIF function in library (animation). The function gives me this error: Error in ... m using Ubuntu, not Windows. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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r - "unexpected INCOMPLETE_STRING" error when printing Chinese word

I tried to run a simple command in R, as a script, like this one print("寛") And R gives me an error like this: ... to use in R. What can I do? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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770 views

1 answer

r - changing background color in xyplot()

I'm trying to get the background colors of the strips to change (it is a 6 by 6 matrix and i have 6 strip ... ()] },scale=list(draw=FALSE))) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

r - Using rbind() to combine multiple data frames into one larger data.frame within lapply()

I'm using R-Studio 0.99.491 and R version 3.2.3 (2015-12-10). I'm a relative newbie to R, and I ... (currently seven) log files in the folder. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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728 views

1 answer

r - merging palettes with colorRampPalette and plotting with leaflet

I'm trying to merge two colorRampPalette schemes to use in leaflet and have been following this nice example. ... anyone have any ideas? thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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792 views

1 answer

r - Identify and replace duplicates elements from a vector

I have got a vector which is as under a<- c(1,1,1,2,3,2,2,2,2,1,0,0,0,0,2,3,4,4,1,1) Here we can ... tried unique(a) #which gives [1] 1 2 3 0 4 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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r - How to add legend for vertical lines in ggplot?

I am trying to show a line graph with some vertical lines as indicators of particular time points and have a ... What is wrong with this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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772 views

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r - Match row names and column names to values in another data frame

I have two data frames as follows : df1 <- t(data.frame(seq(1,6,by=1),seq(6,1,by=-1))) ... Any suggestions would be much appreciated. Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

1 answer

r - Use sf polygon object as window in spatstat

Hello all potential helpers, I have a SpatialPolygonDataFrame object obtained from the tigris package and I would like ... you for your help. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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748 views

1 answer

r - Find a submatrix in a matrix

I have a matrix like: df<-data.frame(a=c(1,2,5,4,5,4), b=c(3,4,8,6,7,4)) and I want to know ... a way to solve this without having to do a loop? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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857 views

1 answer

r - strange jags.parallel error / avoiding lazy evaluation in function call

I have a function call (to jags.parallel) that works when given a numerical argument like n.iter = 100 but ... passing it to the function? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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937 views

1 answer

r - Round a POSIX date and time (posixct) to a date relative to a timezone

I want to round a POSIXct down to the day, relative to a specific timezone. If I try round(as.POSIXct("2013- ... 't take a time zone parameter. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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802 views

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r - Replacing NAs between two rows with identical values in a specific column

I have a dataframe with multiple columns and I want to replace NAs in one column if they are between two rows ... but so far no luck. Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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784 views

1 answer

r - conditional panel function in lattice for multiple y variables

I have a dataset in which a value (mean) can or cannot fall within an interval given by lower.bound and upper. ... ). But this is not important. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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785 views

1 answer

r - How to pass some (but not all) further arguments with "..."

One of my in-progress functions calls grep() with value = TRUE hard-coded. I'd like to pass all of the further ... ) # [1] "abc" "ddabcff" See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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868 views

1 answer

r - Draw lines between two different ("grid.arranged") plots

So i have managed to create two ggplot-graphs and plot them perfectly aligned with grid.arrange. Now i would like to ... byrow=TRUE), ncol = 4) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

791 views

1 answer

r - Calculate mean of each numeric column and add as result as row

So, I would like to calculate the mean of each numeric column and put the results in the row below the ... contain other, non-numeric columns. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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875 views

1 answer

r - Using the same output element twice in Shiny

Example taken from Shiny gallery. I would like to show ex1 and ex2 on the first tab, with some breaks between ... DT::dataTableOutput('ex2')) ) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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