Recent questions tagged R

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r - Error in as.double(y) : cannot coerce type 'S4' to vector of type 'double'

I am applying Aprior algorithm, and while plotting there is an error. I have installed packages arules and ... .com/examples/association-rules 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 - as.Date produces unexpected result in a sequence of week-based dates

I am working on the transformation of week based dates to month based dates. When checking my work, I found ... explain what is happening here? See Question&Answers more detail:os...

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

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371 views

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r - How to spread rows to columns by grouping and filtering?

I have a data set something like this: df_1 <- tribble( ~id, ~type, ~min_price, ~max_price, "1", "X", ... have any suggestion to get this data? 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 - How to drop factor levels while scraping data off US Census HTML site

Thank you in advance for your help. On the US Census website (below), I am looking for an element in the 6th ... again so much 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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r - Shiny: How to stop processing invalidateLater() after data was abtained or at the given time

I want to keep reflashing until 10:05, after 10:05 I got the tplus0_dt and stop to processing invalidaterLater(). ... table1") ) ) runApp(app) 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 - Take the subsets of a data.frame with the same feature and select a single row from each subset

Suppose I have a matrix in R as follows: ID Value 1 10 2 5 2 8 3 15 4 7 4 9 ... What ... without subsetting and sampling the subsets? 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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357 views

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r - Labelling points with ggplot2 and directlabels

This is a follow-up to my earlier question. While the answer by krlmlr somehow helps to solve my problem, one ... defaultpf.ggplot("point",,,)) 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 - How to get last data for each id/date?

I have a data frame that contains id, POSIXct(Date & Time) > myData Tpt_ID Tpt_DateTime Value 1 1 2013-01-01 15: ... 9L), class = "data.frame") 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 - Axis does not plot with date labels

I have a multivariate data set typified by the data below: financials <- "A B C D E Dates 52730.1 ... my mistakes. Many thanks in advance. See Question&Answers more detail:os...

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

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381 views

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r - apply a function to several columns at once with mutate

Some data: x <- structure(list(X. = c("4,084", "4,084", "4,084", "4,084", "4,084" ), ADR = ... . How can I achieve this in dplyr with mutate? See Question&Answers more detail:os...

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

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452 views

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r - Out of order text labels on stack bar plot (ggplot)

I'm trying to make a stacked bar chart with text labels, this some example data / code: library(reshape2) ... = "stack")+ coord_flip() 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 - Stargazer output appears below text - rmarkdown to pdf

The Problem When using rmarkdown in RStudio, my stargazer(glm()) output gets positioned below the text that I ... solution. I appreciate it. 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 - chi square test for each row in data frame

I have a data frame containing independent counts of two observers of the same process. obs.1 <- c(2,10,53 ... this but haven't been successful. See Question&Answers more detail:os...

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

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364 views

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r - TLS v1.1 / TLS v1.2 support in RCurl

ETA: Per https://github.com/hiratake55/RForcecom/issues/42, it looks like the author of the rforcecom package ... 's questions and answers. See Question&Answers more detail:os...

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

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327 views

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r - drop columns that take less than n values?

Suppose i have a data frame like the following: df <- data.frame(v1 = sample(1:10, 100, replace = T), v2 ... select(which(length(unique(.))>10)) 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 - Changes in plotting an XTS object

I had produced the following chart, which is created using an xts object. The code I used was simply plot( ... .0". Thanks in advance. See Question&Answers more detail:os...

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

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496 views

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r - Merge plm fitted values to dataset

I'm working with a fixed effects regression model using plm. The model looks like this: FE.model <-plm(fml, ... not be efficient. Many 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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358 views

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r - Convert byte Encoding to unicode

I may not be using the appropriate language in the title. If this needs edited please feel free. I want to ... [1] "bixdfchen Zxfcrcher xc6" See Question&Answers more detail:os...

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

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556 views

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r - How to draw ROC curve using value of confusion matrix?

Consider i have a classifier like A and the result of its classification gives me the following table: TP TN FP ... should be an easier way? See Question&Answers more detail:os...

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

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378 views

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r - Difference of two character vectors with substring

I have two lists: a <- c("da", "ba", "cs", "dd", "ek") b <- c("zyc", "ulk", "mae", " ... ) # TRUE How would you go about doing this efficiently? See Question&Answers more detail:os...

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

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387 views

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r - Generating a date from a string with a 'Month-Year' format

I have the following date and it's in a 'month-year' format. However, to plot the dates on the x-axis of a ... -%b")) # doesn't work 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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418 views

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r - How to set ggplot x-label equal to variable name during lapply?

I'm making plots of one y variable against multiple x variables. I have a working solution using lapply. However, I ... name x1, x2 and x3. 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 - Increasing whitespace between legend items in ggplot2

My question is an extension of this question. Note that I'm using version 2.3.0 which is available on github, ... . How would I do that? See Question&Answers more detail:os...

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

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319 views

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r - Map array of strings to an array of integers

Suppose I have a column in a data frame as colors say c("Red", "Blue", "Blue", "Orange"). I would ... the obvious if/else or switch functions? See Question&Answers more detail:os...

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

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420 views

1 answer

r - Create a reactive function outside the shiny app

I am trying to decompose the code of my shiny app in order to improve readability and to test some functions ... a such behavior is possible? See Question&Answers more detail:os...

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

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536 views

1 answer

r - Sum columns row-wise with similar names

I have a dataframe that has lots of columns that are something like this: data <- data.frame (a.1 = 1:5, ... should put me on the right track. See Question&Answers more detail:os...

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

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444 views

1 answer

r - Cant create file name with time stamp

I have a file that I would to write away in a certain dir. Therefore I have the following code: function <- ... syntax error.... Any thoughts?? See Question&Answers more detail:os...

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

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310 views

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r - data.table joins - Select all columns in the i argument

Joining two data.table I can specify the table I want the column from, like X[Y, i.id] # `id` is taken ... get added to the tables in future). See Question&Answers more detail:os...

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

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