Recent questions tagged R

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I implemented the following function to plot the different colors used by ggplot. They function also plots the hex ... of 00B0F6 in the legend 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 use stat_bin2d() to compute counts labels in ggplot2?

I wish to build a plot, essentially identical to that which i can produce using ggplots 'stat_bin2d' layer, ... missing aesthetics: x, y 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 - error with scale_x_labels in ggplot2

I am trying to recreate the charts in this book using ggplot2. The data I am using is at the bottom of the post ... 54L), 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 - Overlapped density plots in ggplot2

Imagine I have two vectors each of different length. I want to generate one plot with the density of both ... so. Appreciate any suggestions. 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 can I force ggplot's geom_tile to fill every facet?

I am using ggplot's geom_tile to do 2-D density plots faceted by a factor. Every facet's scale goes from the ... the full range of the facet? 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 - ggplot2 ggsave function causes graphics device to not display plots

I've updated my ggplot2 library and I am now having a problem where after calling ggsave, the graphics device no longer ... 97.336 + V0.97.449. 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 - Adding a table of values below the graph in ggplot2

Sample data: ### Data df <- data.frame(year = seq(as.Date("1998/1/1"), as.Date("2012/1/1"), "years"), ... 's any way to customize it? Thank you. 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 - MS-SQL Bulk Insert with RODBC

Is it possible to perform a bulk insert into an MS-SQL Server (2000, 2005, 2008) using the RODBC package? I ... it would be to implement 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 - Subset a data frame based on value pairs stored in independent ordered vectors

I have an R dataframe that I need to subset data from. The subsetting will be based on two columns in the dataframe. For ... B Value 1 6 9 3 8 2 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 - subsetting in xts using a parameter holding dates

I am familiar with the xts subsetting abilities. However, I can't find an elegant way to subset a parameterized ... have any idea? 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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492 views

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r - Coloring a geom_histogram by gradient

I'm trying to plot a geom_histogram where the bars are colored by a gradient. This is what I'm trying to ... it colored by the defined gradient? 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 - Total of a column in DT dataTables in shiny

I am trying to calculate the total of a column in my shiny app using DT::datatable. By total I mean the sum ... ui, server = server)) Thank you 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 app does not reflect changes in update RData file

I update my RData file on daily basis through a cron job for my shiny apps. However, shiny apps does not pick ... ) Thanks for taking your time. See Question&Answers more detail:os...

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

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354 views

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r - Blockwise sum of matrix elements

I want to go from something like this: 1> a = matrix(c(1,4,2,5,2,5,2,1,4,4 ... without parallelization/supercomputers would be much appreciated. 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 - Syntax highlighting for Python chunks does not work

I'm trying to create notebooks in which I present the same algorithm written in R and Python. I can easily ... problem? Thanks 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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779 views

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r markdown - Inline R code in YAML for rmarkdown doesn't run

I'm trying to run inline R code in the YAML front matter before getting rmarkdown to run the file. ... chunks YAML current date in rmarkdown See Question&Answers more detail:os...

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

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873 views

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r Shiny action button and data table output

I would like an output data table after selection of some simple criteria, once an action button is clicked. The ... (ui=ui, server=server) See Question&Answers more detail:os...

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

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433 views

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r - arrow() in ggplot2 no longer supported

Installed R 2.15.2 on a new machine and ggplot2. The grid package is no longer supported in this latest ... find a workaround. Any suggestions? See Question&Answers more detail:os...

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

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682 views

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r - Plot Histogram with Points Instead of Bars

Here is a question for R-users. I am interested in drawing a histogram with points stacked up, instead of a bar. ... best way to do this in R? 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 - dplyr 0.7 equivalent for deprecated mutate_

I cannot find in dplyr 0.7 a way to replace the mutate_ function which is going to be deprecated. ... variables and instructions as character? See Question&Answers more detail:os...

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

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459 views

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r - Fast melted data.table operations

I am looking for patterns for manipulating data.table objects whose structure resembles that of dataframes created with melt ... 11 3 3 15 9 See Question&Answers more detail:os...

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

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356 views

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r - How to correctly `dput` a fitted linear model (by `lm`) to an ASCII file and recreate it later?

I want to persist a lm object to a file and reload it into another program. I know I can do this by ... why my current methods are not working? See Question&Answers more detail:os...

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

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489 views

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r - How to create a continuous legend (color bar style) for scale_alpha?

Currently, a continuous colour bar legend, guide_colorbar is available only with scale_fill and scale_colour, and not ... also for scale_alpha? See Question&Answers more detail:os...

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

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419 views

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r - Get list of available data frames

How do I get vector of data frame names available in current environment? I've tried: sapply(ls(), is. ... for dynamic selection in Shiny 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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552 views

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r - polygons from coordinates

I've got a data.frame with lats and lngs that define the boundaries of rectangular boxes, like so geohash ... holds a column of POLYGONs? See Question&Answers more detail:os...

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

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416 views

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r - expanding factor interactions within a formula

I have many formulas (of class formula or Formula) of the form y ~ a*b, where a and b are factors. ... it overestimates my degrees of freedom.) See Question&Answers more detail:os...

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

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499 views

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r - How to reference column names that start with a number, in data.table

If the column names in data.table are in the form of number + character, for example: 4PCS, 5Y etc, how could ... that it is a column name. See Question&Answers more detail:os...

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

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512 views

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r - How to apply separate coord_cartesian() to "zoom in" into individual panels of a facet_grid()?

Inspired by the Q Finding the elbow/knee in a curve I started to play around with smooth.spline(). In particular, I want ... , deriv)] }) ) }) ) See Question&Answers more detail:os...

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

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