R QUESTIONS

Exit from Command prompt after running r script

this one helps. Yes, you have double quoted ONLY cd C:\ABCD; you had to double quote the whole sequence of the commands. Also, I would use operator, so your script will fail if path C:\ABCD doesn't exist. Also, if you want to terminate cmd after com

TAG : r

Date : November 21 2020, 04:01 AM , By : user2185431

R: write function with optional arguments

will be helpful for those in need I m trying to write a function that build an API request. The difficulty: I want to use optinal arguments inside the function, and build the API request according to the presence of these optional arguments. Example:

TAG : r

Date : November 21 2020, 04:01 AM , By : user2185420

After full_join() how to replace NAs in one source with data from other source

I wish this help you When joining two dataframes, how can I replace missing values in one dataset with values from the other dataset? , you could also do it in three lines with dplyr and the zoo package.

TAG : r

Date : November 20 2020, 04:01 AM , By : user2184848

Use reactive "if" statements in R Shiny

around this issue Below are the headers of my dataframe (appliance) along with it's structure. , This is a shot, not fully tested:

TAG : r

Date : November 19 2020, 04:01 AM , By : Christian Cruz

Nested loop to find most recent comment

Hope that helps Reverse the dataframe, then get the first non-NA value using dplyr::coalesce:

TAG : r

Date : November 19 2020, 04:01 AM , By : Dito

How to calculate common values across different groups?

I wish did fix the issue. Another possible solution via dplyr is to create a list with all the combos for each customer, unnest that list, count and merge with a data frame with all the combinations, i.e.

TAG : r

Date : November 19 2020, 04:01 AM , By : Napster100

RStudio + Knitr + mind mapping

Hope that helps As your post does not contain valid TikZ/mindmap code, here is a reproducible example based on code examples found on TeXample.net.RMarkdown code

TAG : r

Date : November 18 2020, 04:01 AM , By : mdpdance

Filter a dataframe between two dates

help you fix your problem I have a dataframe with dates column and some other column. I need to filter based on dates. , We can use grep to get row indices and then subset the dataframe.

TAG : r

Date : November 18 2020, 04:01 AM , By : Daniel Lucia García

Filter rows with earlier date than a row specified by another variable

may help you . With dplyr, you can group_by ID, arrange by date and select the rows before Med == 1

TAG : r

Date : November 18 2020, 04:01 AM , By : Nevena Menković

generate a vector between 0 and 1, with certain length and certain number of 1

I wish this help you You can give two values for prob argument but this doesn't guarantee the distribution to be equal

TAG : r

Date : November 18 2020, 04:01 AM , By : Nikki Aiello

Looping multiple listed data frames into a single function

may help you . You were close, but I'll explain a bit how lapply (and mclapply) work, because it feels like you're mixing up what the role of x is. First, this should work:

TAG : r

Date : November 17 2020, 04:01 AM , By : user2184108

$Problems importing .csv file due to presence of \ symbol$

Problems importing .csv file due to presence of \ symbol

I hope this helps you . It looks like the csv-files you are trying to read don't comply with the official csv-standard (RFC-4180), so I think it's easiest if we brute-force our way through it.We can use readLines to read the raw data, gsub to edit th

TAG : r

Date : November 17 2020, 04:01 AM , By : Jm77345

R: filter/subset range of rows based on cells containing specific value

I hope this helps . As there is only a single instance of 'identifier' that specifies the 'start/stop', use grep to get the row index that matches the pattern, get a sequence between the start and end (:) and subset the 'X2' values

TAG : r

Date : November 17 2020, 04:01 AM , By : TheYak

merging by common value in R

Does that help OK, I think I got it. I added these options: header = T, strip.white = T, na.strings = c(""), stringsAsFactors = FALSE and now data contains 181 observations. Strings were being imported as factors and the factors didn't match. Also, t

TAG : r

Date : November 17 2020, 04:01 AM , By : esraa

R - Conditionally select within duplicate IDs and index

wish of those help We arrange the 'ID', 'fruit' based on the levels specified in the 'OP's post, and 'X' in 'descending' order, then grouped by 'ID', slice the first row

TAG : r

Date : November 17 2020, 04:01 AM , By : Sebastian Nassutti

Generate sequences of anniversary dates between 2 dates

I wish did fix the issue. I tried to generate a sequence of dates between two dates. By search all the old posts, I found very nice solution using seq.Date. , Here's an approach that also works in other cases:

TAG : r

Date : November 17 2020, 04:01 AM , By : Andres Teeääre

Have trouble creating a bar graph with ggplot with having both x and y variables

I hope this helps you . Well, you don't provide sample data but like the error says you need to set your stat to "identity" not "count". You can always use geom_col() as suggested by some of the comments. You would do something like:

TAG : r

Date : November 17 2020, 04:01 AM , By : Trung Nguyen

Function to remove near close proximity geolocations geometry in R

To fix the issue you can do edit4: it's working now :Dthis code probably looks pretty bad but it works decently for my use case and it's not too slow

TAG : r

Date : November 17 2020, 04:01 AM , By : user2183901

How to add legend and table with data value into a chart with different lines using ggplot2

Hope this helps Part 1 - Fixing the legend Concerning the legend, this is not the ggplot-way. Convert your data from wide to long, and then map the what keys to the colour as an aesthetic mapping.

TAG : r

Date : November 17 2020, 04:01 AM , By : Jason Perlman

Adding non-numeric values to a histogram in SAS or R

To fix the issue you can do SGPANEL can create output for each variable but will require some data manipulation to get the data columns needed for statements such as PANELBY and INSET. A histogram chart ignores missing values, and computes the histog

TAG : r

Date : November 17 2020, 04:01 AM , By : Bernard Christopher

Add variable labels within mutate

wish help you to fix your issue I am in the process of reworking some old code in order to facilitate learning the tidyverse. In the previous code I would make new variables derrived from present variables, and I would give these new variables a labe

TAG : r

Date : November 16 2020, 04:01 AM , By : Quindo

Collapse matrix to vector and replace values with column names

may help you . Using the input matrix m defined reproducibly in the Note at the end if we matrix multiply it by 1:2 which is the same as multiplying each row by 1:2 which gives a vector with the same length as the number of rows such that each elemen

TAG : r

Date : November 15 2020, 04:01 AM , By : Arpit

Merge returning matrix of size x^2

seems to work fine I have two sf objects, one with 7 columns and 1273 rows, the other with 2 columns and 1273 rows that is returned from a function applied to the first object. , If you are merging by index try this:

TAG : r

Date : November 15 2020, 04:01 AM , By : Bill Poser

Fuzzy compare and aggregate similar records within a single single column data-frame

wish of those help The current requirement is to aggregate a single column and supply a count with the per row. There are a couple of issues that I am encountering that I need assistance with: , data.table solution

TAG : r

Date : November 15 2020, 04:01 AM , By : user2183298

Collapsing consecutive dates into a single row

may help you . I saw many threads about how to merge consecutive dates into a single row, and tried few of them (including this and using lead from dplyr), but so far didn't find thread that specifically answers my question. , You could go for someth

TAG : r

Date : November 15 2020, 04:01 AM , By : Matthew Doyle

How to change default color scheme in ggplot2?

it should still fix some issue I would like to change the default color scheme in ggplot2. That is, I would like to define a color scheme (say: viridis) at the one point in the script so that all subsequent ggplot diagrams will use this color scheme

TAG : r

Date : November 15 2020, 04:01 AM , By : user2183052

Color values in boxplot based on x-axis variable in ggplot

may help you . There are few (minor) syntax errors in your data. Nevertheless, you are probably looking for this:

TAG : r

Date : November 14 2020, 04:01 AM , By : rnm20

Loop in R, extracting the last line of the output

will be helpful for those in need Just include a return(Calculus2) at the end and have a break inside the if statement.

TAG : r

Date : November 14 2020, 04:01 AM , By : user2182937

Remove records matching a value on a single column occurring within a 5 minute window of a different value on the same c

this one helps. The beauty of R is that almost all operations are vectorized, so you can compare multiple things at the same time, and you don't need for loops.In this case you have to compare all values with the one directly before, which can be don

TAG : r

Date : November 14 2020, 04:01 AM , By : vani

How to efficiently apply a function on a number of matrices - mean of columns

I think the issue was by ths following , We keep the matrices in a list, use vapply to loop through the list and get the colMeans

TAG : r

Date : November 14 2020, 04:01 AM , By : Ashok Bhayal

Error when trying to build Rmarkdown site

With these it helps I had to delete the package and then reinstall it with the following contingencies. install.packages("stringi",type="mac.binary")

TAG : r

Date : November 14 2020, 04:01 AM , By : Magic

Different function output and print option in r

like below fixes the issue I have a data frame x and subject function. , No need to save output in a list at first place

TAG : r

Date : November 14 2020, 04:01 AM , By : user2182872

How to extract specific intervals of the dataset?

may help you . I have a big dataset (More than 200 thousand lines and a thousand of trials) with four columns with follow information: , As a first step, you want to split the data.frame, per Trial:

TAG : r

Date : November 14 2020, 04:01 AM , By : user2182835

Using Group by and Slope with dplyr to get new column

This might help you Not sure you'd consider this any cleaner than what you had, but by using nest you don't need to group_by

TAG : r

Date : November 14 2020, 04:01 AM , By : Sd Ds

A better way to map data to a column in a dataframe?

To fix this issue I have several large data frames that I need to merge, and sometimes add a unique identifiable column in order to merge them. I use this approach which works, but seems to take a long time. Basically, using dplyr, I grab the distinc

TAG : r

Date : November 14 2020, 04:01 AM , By : m1k3p

Creating initialise method for reference class in R

I hope this helps you . You need to actually modify the object and call your initialize method.

TAG : r

Date : November 14 2020, 04:01 AM , By : Oscar Armando Lozano

How to make all plots in gridarrange the same size. Some with labels on axes and others none?

wish help you to fix your issue try the patchwork library:https://github.com/thomasp85/patchwork

TAG : r

Date : November 13 2020, 04:01 AM , By : shimon123123

Data perturbation - How to perform it?

hop of those help? Perturbing just means adding a small, noisy shift to a number. Your code might look something like this.

TAG : r

Date : November 13 2020, 04:01 AM , By : Lexxus080

r - getting vectors from rows in data.table

Hope this helps I've got a big data.table that's been read in from a csv file (essentially the results of an SQL query). Each record has several sets of 20 fields which are the annual figures for a particular thing (eg, a particular type of payment).

TAG : r

Date : November 13 2020, 04:01 AM , By : dvz

Append column names as a row value

To fix the issue you can do We can loop through the rows with apply, subset the names where the column values are 1, paste it together to create the 'cols' column in the new data.frame 'db2'. If needed, change the blanks ("") to -

TAG : r

Date : November 13 2020, 04:01 AM , By : Niraj Bhagchandani

How to replace strings with the matching string from a list?

wish help you to fix your issue Say I have a column df1$z with some "dirty" strings within , You may use the following sub solution:

TAG : r

Date : November 13 2020, 04:01 AM , By : user2182416

Comparison of single values in xts and data frame fails

hope this fix your issue Got it! It's an R-version problem, not an xts-version problem.This is a known "infelicity" in isTRUE(), described here and fixed after version 3.5.

TAG : r

Date : November 13 2020, 04:01 AM , By : user2182392

How to use 2 columns in one function(t.test) after group by

I think the issue was by ths following , You didn't provide a clear input or expected output, but it looks like, e.g.,

TAG : r

Date : November 13 2020, 04:01 AM , By : shaggybutsmooth

using lapply and filter to subset dataframes with a pattern in the filtered columname

I hope this helps you . Working with R * , You could do this...

TAG : r

Date : November 13 2020, 04:01 AM , By : X infinity

Why wont it let me add a legend to my graph on ggplot2 in R?

will be helpful for those in need The easiest way to do what you want is to merge your data. But you can also do a manual color mapping. I'll show you both below.Without merging your data

TAG : r

Date : November 12 2020, 04:01 AM , By : Sai Kumar

Avoid datatable greying out when recalculating

To fix the issue you can do I have a very simple Shiny app to show the CPU usage and available memory of the shiny server : , Try adding

TAG : r

Date : November 12 2020, 04:01 AM , By : user2182336

R: read strings in a data frame and record position of a specific letter

hope this fix your issue I have a data frame with a column containing strings and their scores. Is there a way to create a new data frame with position of a specific letter in each string and their scores. Here is a sample data frame , Another tidyve

TAG : r

Date : November 12 2020, 04:01 AM , By : Jashwa Lopez

sum up results of a recursive function within the same recursive function

like below fixes the issue The following returns the factor of n in its first component and the cumulative sum of all factorials to n in its second argument.

TAG : r

Date : November 12 2020, 04:01 AM , By : Nachi D

split dataframe by factor and name new df by the factor and addidtional description like "new_dataframe(factor)&quo

hope this fix your issue cluster_list

TAG : r

Date : November 12 2020, 04:01 AM , By : user2182087

Replace data from dataframe using other threshold table in R

hop of those help? I have 2 dataframes, the first has data for many months, and the second has threshold values (minimum and maximum, different for every month). Now I want to replace any values outside the thresholds with NA. , With base R:

TAG : r

Date : November 12 2020, 04:01 AM , By : user2182045

lmer multilevel fit with intercept constraint

Hope that helps I regularly have this problem: I want to fit a multilevel regression, with constraint. I don't know how to do that. I usualy end up using lavaan, as it allows to set constraints on the regression coefficients. But still it can't have

TAG : r

Date : November 12 2020, 04:01 AM , By : Bandana Sharma

Two separate y-axis titles for two facets of a plot while keeping the facet top strip labels using ggplot2

around this issue Not sure if I fully understood what you need, but here is my attempt based on your suggested link and this one.

TAG : r

Date : November 11 2020, 04:01 AM , By : user2181879

R - How to maximise based of sum of other column from data frame

it should still fix some issue Here might be a solution. There might be cleverer ways, however making use of the excellent package RcppAlgos the task can be done in a rather fast manner

TAG : r

Date : November 11 2020, 04:01 AM , By : JC Puja

How to put two separate functions on same graph ggplot2

wish of those help I would like to plot these two functions on the same graph, but for some reason there is no simple way to do so: , Here's an example with simulated data on how to do it:

TAG : r

Date : November 11 2020, 04:01 AM , By : Salu Vs

apply strsplit to multiple columns

Any of those help I want to get rid of duplicates in strings that are separated by commas. , We need to wrap with as.character if the column is factor

TAG : r

Date : November 11 2020, 04:01 AM , By : user2181775

Change some numerical values in data frame

hope this fix your issue I have a dataframe with incorrect values for two variables (Lat and Lon). The incorrect values in the dataframe are listed as 999.00, and the correct values should be 42.68 and -72.47, respectively. , We can place NULL in a l

TAG : r

Date : November 11 2020, 04:01 AM , By : Dani Leonhartsberger

Function not changing the data frame

I wish did fix the issue. You need to return the object from the function and then assign it later:

TAG : r

Date : November 11 2020, 04:01 AM , By : Balasubramanian

How to make crossprod faster

around this issue By changing your code? Basically no. crossprod directly calls compiled code, you'll be hard pressed to find any performance gains, and any you find will be small.(Barring extenuating circumstances--how dense is your matrix? If you'v

TAG : r

Date : November 10 2020, 04:01 AM , By : user2181599

Assigning a value to a list item using `assign()`

I think the issue was by ths following , A little bit of context first... , Suggest not using assign and instead:

TAG : r

Date : November 10 2020, 04:01 AM , By : user2181488

Count keywords and word stems in tweets

wish helps you I don´t know if this is the optimal solution, but it works just fine. You should use the "stringr" package.

TAG : r

Date : November 10 2020, 04:01 AM , By : Karina Zapata M