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R QUESTIONS

Selecting unique rows using sqldf package in R
Selecting unique rows using sqldf package in R
will help you CASE is a keyword, so you have to quote this column name as "Case" in your query.
TAG : r
Date : December 05 2020, 12:24 PM , By : George Emerson Manal
why am i getting "month.observed" object not found even though it has been defined in R?
why am i getting "month.observed" object not found even though it has been defined in R?
I hope this helps you . Basically you are trying to build an object with the [
TAG : r
Date : December 05 2020, 12:18 PM , By : Jaber Rahman
Using German characters (ü, ö, ä, etc.) in text analysis (R)
Using German characters (ü, ö, ä, etc.) in text analysis (R)
wish helps you It depends a bit on what you want to do with the files but generally stri_read_lines() from the package stringi does a fine job with umlauts even when encoding is left on "auto"
TAG : r
Date : December 01 2020, 04:55 PM , By : Brittany Vazquez
R JAGS: Dimension mismatch
R JAGS: Dimension mismatch
I wish this help you It looks like you are not indexing through the vectors x and y, which causes a dimension mismatch.Change this line:
TAG : r
Date : December 01 2020, 04:55 PM , By : Carlota
R - How to create a function that accepts a code block as parameter?
R - How to create a function that accepts a code block as parameter?
may help you . I would like to create a function that accepts a code block as a parameter. I am not sure how to do this in R. I would like to create a function that has similar behavior to the built-in within function. , It’s very simple:
TAG : r
Date : December 01 2020, 04:55 PM , By : Juarez Soares
How do I manually set geom_bar fill color in ggplot
How do I manually set geom_bar fill color in ggplot
wish helps you I'm guessing that you've looked at the ggplot color blind example shown here? Without your data, I can only speculate that your geom_bar calls create ambiguity regarding which layer to apply the fill changes to since your initial call
TAG : r
Date : December 01 2020, 04:55 PM , By : rrb011270
How can I get my points to connect in a plot and show a trend with NA values in data?
How can I get my points to connect in a plot and show a trend with NA values in data?
I hope this helps you . Using data from Gwang-Jin Kim's answer and the suggestion of dashing the lines where NAs exist, here's a redo. I'll keep the previous answer below.lines (and therefore plot(..., type="l")) requires that lty be the same for all
TAG : r
Date : November 29 2020, 01:01 AM , By : fromnobady
Read SPecific lines of a CSV file in R-language
Read SPecific lines of a CSV file in R-language
I hope this helps you . Your code doesn't work. You confuse the comparison operator
TAG : r
Date : November 29 2020, 01:01 AM , By : user4642306
ggplot stacked bar plot from 2 separate data frames
ggplot stacked bar plot from 2 separate data frames
This might help you Here is a workaround for this problem because directly in one ggplot2 plot you can't combine dodging and stacking.For this plot I used the data frame all_data that is made @DrewSteen answer - data frame should contain values for a
TAG : r
Date : November 29 2020, 01:01 AM , By : sam
auto.arima not parallelizing
auto.arima not parallelizing
I wish did fix the issue. Try num.cores=8 and num.cores=7, use system.time() to see which one runs faster. If I remember correctly, R treats 1 core as one CPU. You have 8 cores, if I understood you correctly: "4 dual-core CPUs".
TAG : r
Date : November 29 2020, 01:01 AM , By : Aryk
Histogram of binned data frame in R
Histogram of binned data frame in R
Does that help A histogram is basically a special kind of barplot. So you could just use function barplot.I prefer package ggplot2 for this:
TAG : r
Date : November 29 2020, 01:01 AM , By : RobertoMedina
R rewriting stringmanipulations implemented in loop to the R-way
R rewriting stringmanipulations implemented in loop to the R-way
To fix this issue So this is just a start I think, but in terms of speeding things up you want to stop recalculating the same thing over and over. Even if you do have to make another loop of some kind, make sure you are only doing calculations when t
TAG : r
Date : November 28 2020, 08:01 AM , By : yicong
get first entries in rows of list?
get first entries in rows of list?
like below fixes the issue I have a list, with 3 "columns": , You can do it with functions lapply() and head().
TAG : r
Date : November 28 2020, 01:01 AM , By : Robert Kindl
Conditionally removing rows from a matrix in R
Conditionally removing rows from a matrix in R
wish of those help I'm working with a sizeable set of data, but before moving on with my work I'd like to remove all rows whose values in one column is less than 10.
TAG : r
Date : November 27 2020, 01:01 AM , By : carmined58
Using a loop to find P(-1.5<Y<1.5) for a range of sample sizes
Using a loop to find P(-1.5<Y<1.5) for a range of sample sizes
Hope that helps If you want to automate your code to other values of n, the following function simplifies the simulation and then it is called in a sapply loop for n = 10, 20, ..., 200. Note that one of the arguments is rdist, with default rnorm. If
TAG : r
Date : November 26 2020, 01:01 AM , By : Luis Gonzalez
R-Count and list the maximum count row by row
R-Count and list the maximum count row by row
I wish did fix the issue. Your input and output data don't match, but I think this is what you are after:
TAG : r
Date : November 26 2020, 01:01 AM , By : Fatouma Said
Include Iverson Bracket in R documentation
Include Iverson Bracket in R documentation
To fix this issue I am wanting to include an Iverson bracket in R documentation (unless there's a better way to represent this information; I'm no mathematician). This looks something like this. , I utilized the following in the roxygen2 documentatio
TAG : r
Date : November 26 2020, 01:01 AM , By : turuncu
update a data frame and environment in R
update a data frame and environment in R
I wish this helpful for you What is going on here? You haven't read The introduction to R, especially not the section on Assignment within functions or the section on writing your own functions
TAG : r
Date : November 26 2020, 01:01 AM , By : RamhaKrishna
How to write dynamic cumulative multiple in R
How to write dynamic cumulative multiple in R
may help you . Suppose I have a vector x as: , Have a look at ?cumprod:
TAG : r
Date : November 26 2020, 01:01 AM , By : Fred
format time using as.POSIX in R
format time using as.POSIX in R
Any of those help "01-01-2014 00:00:00" is not in one of the standard formats, so (at the very least) you would need to add ..., format="%m-%d-%Y %H:%M:%S" to the as.POSIXct call. This is untested since you did not include the "test" object.@Senor O
TAG : r
Date : November 26 2020, 01:01 AM , By : Comboku1
Change the class of multiple columns
Change the class of multiple columns
Any of those help I have a data frame with 8 columns and 40 rows. All columns have numeric values. I need to change column 1 to 5 to character. I tried dplyr::mutate_at() but I cannot get it to work. I don't want to create new columns, but change the
TAG : r
Date : November 25 2020, 07:27 PM , By : KoMno3uToP
Remove period and spaces within column headings nested in a list of data frames
Remove period and spaces within column headings nested in a list of data frames
will help you I have a list of data frames: , With Base R setNames:
TAG : r
Date : November 25 2020, 07:27 PM , By : user5943404
R: error message --- package error: "functionName" not resolved from current namespace
R: error message --- package error: "functionName" not resolved from current namespace
help you fix your problem This error message can affect functions that call external code using calls to .C() or .Call().The problem is described well in this R-help thread; in particular Martin Morgan's response is useful. He quotes an entry to R's
TAG : r
Date : November 25 2020, 07:27 PM , By : Brad Watts
labels with geom_text ggplot2
labels with geom_text ggplot2
I wish this help you Hy guys, I have a df and with this code , Create a new data.frame with the positions of the labels
TAG : r
Date : November 25 2020, 07:27 PM , By : Hamayoon Siyal
Passing mongodb ISODate in R
Passing mongodb ISODate in R
wish helps you I just spent considerable time struggling with this myself. If you're still looking for an answer, the key seems to be in MongoDB extended JSON; seehttp://docs.mongodb.org/manual/reference/mongodb-extended-json/
TAG : r
Date : November 25 2020, 07:27 PM , By : dcom
Importing "csv" file with multiple-character separator to R?
Importing "csv" file with multiple-character separator to R?
may help you . I have a "csv" text file where each field is separated by \t%$ which I'm now trying to import into R. , The following code will be able to handle multiple separator chars:
TAG : r
Date : November 25 2020, 07:27 PM , By : Ivan Dmitriev
Change row names of a table obtained from a lm regression using xtable function
Change row names of a table obtained from a lm regression using xtable function
will help you I think what you want to do is convert the summary to a matrix, then use the guide here: http://www.inside-r.org/packages/cran/xtable/docs/xtableto add row and column names to the matrix programatically.
TAG : r
Date : November 25 2020, 07:22 PM , By : Amine Raji
R language iterate over R object
R language iterate over R object
I wish this help you I have an unknown R object that prints like this. How do I iterate over the values and print them? , There's a plyr solution:
TAG : r
Date : November 25 2020, 07:06 PM , By : Bouchlama Rami Bouch
How do you delete the header in a dataframe?
How do you delete the header in a dataframe?
like below fixes the issue If you really, really, really don't like column names, you may convert your data frame to a matrix (keeping possible coercion of variables of different class in mind), and then remove the dimnames.
TAG : r
Date : November 25 2020, 07:06 PM , By : Bro Mateus Felipe Ma
Re coding in R using complicated statement
Re coding in R using complicated statement
around this issue There are many ways to solve this I would create an index vector for the rows that contain A first, and then apply the replacements on the different rows using the recode function of the dplyr package.
TAG : r
Date : November 25 2020, 01:01 AM , By : asasasasasa
accumulating functions and closures in R
accumulating functions and closures in R
I hope this helps you . I am constructing an approximating function recursively (adaboost). I would like to create the resulting learning function along the way (not to apply the approximation directly to my test data but keep the function that leads
TAG : r
Date : November 25 2020, 01:01 AM , By : user4639804
How do you combine two columns into a new column in a dataframe made of two or more different csv files?
How do you combine two columns into a new column in a dataframe made of two or more different csv files?
this will help The object mydata is a list of data frames. You can change the data frames in the list with lapply:
TAG : r
Date : November 24 2020, 03:41 PM , By : Sarfraz Riaz
Twitter authentication fails
Twitter authentication fails
To fix this issue OK. I resolved the problem. Apparently, the issue was that my R version was 3.0.0, but the twitteR package has been updated for version 3.0.1. An update of the version fixed the error., Valentin
TAG : r
Date : November 24 2020, 03:41 PM , By : a_felipe_santos
Summing Values of One Vector Conditional on Values of Another Vector
Summing Values of One Vector Conditional on Values of Another Vector
With these it helps For some context, I am trying to add up all of the home wins the Chicago Cubs have. Thus, the W_L column refers to the wins ("W") and losses ("L"). Also, the H_A column refers to home games ("H") and away games ("A"). , Do you rea
TAG : r
Date : November 24 2020, 03:41 PM , By : Ishan Roy
draw cube into 3D scatterplot in RGL
draw cube into 3D scatterplot in RGL
I wish this help you There is a cube3d function that by default returns a list object (but does not plot it) that represents a cube spanning x:[-1,1]; y:[-1,1]; z:[-1,1]. If you apply a color to the sides, it will be solid by default. You need to mak
TAG : r
Date : November 24 2020, 03:41 PM , By : mira
lme4 translate formula to code in 3-level model
lme4 translate formula to code in 3-level model
With these it helps I have been provided with the following formulas and need to find the correct lme4 code. I find this rather challenging and could not find a good example I could follow...perhaps you can help? , Something like this should work:
TAG : r
Date : November 24 2020, 05:47 AM , By : vanwilson ebri
How to draw single axis plot in R
How to draw single axis plot in R
hop of those help? First, plot nothing, remove the axes, and add an x-axis back in at the specified points:
TAG : r
Date : November 24 2020, 05:47 AM , By : Pires Lopes da Silva
Combine geom_tile() and facet_grid/facet_wrap and remove space between tiles (ggplot2)
Combine geom_tile() and facet_grid/facet_wrap and remove space between tiles (ggplot2)
I hope this helps . I ran into two issues:1) My true data set is generated via fit
TAG : r
Date : November 24 2020, 05:47 AM , By : creativelopez
Use snpStats with R version 3.0.1
Use snpStats with R version 3.0.1
will help you Looks like you may be using install.packages()? Or trying to install an older version? Try following the instructions on the Bioconductor site: http://bioconductor.org/packages/2.12/bioc/html/snpStats.html
TAG : r
Date : November 24 2020, 05:47 AM , By : thewayofthewei
Makefile gives strange error while compiling markdown file into .docx file
Makefile gives strange error while compiling markdown file into .docx file
I wish this help you Try to remove semicolon in the first line. You probably wanted to let all depend on the two files. But semicolon separates recipe from list of prerequisites. Look at makefile rule syntax
TAG : r
Date : November 24 2020, 05:47 AM , By : Eric Moon
How to determine whether a points lies in an ellipse
How to determine whether a points lies in an ellipse
seems to work fine dataEllipse returns the ellipses as polygons, so you could use the point.in.polygon function from the sp library to check whether the points are inside the ellipse:
TAG : r
Date : November 24 2020, 05:47 AM , By : Angelo Cicero
Summarize data already grouped in r
Summarize data already grouped in r
may help you . You can use the reshape2 package and its melt and dcast functions to restructure your data.
TAG : r
Date : November 24 2020, 05:44 AM , By : Daniel Shin
Is the bigvis package for R not available for R version 3.0.1?
Is the bigvis package for R not available for R version 3.0.1?
around this issue assuming you've got Rtools.exe installed, here are the steps to get bigvis installed if it still does not work. you need a 64-bit compiler in order to run the Rcpp package, one of the dependencies of bigvis
TAG : r
Date : November 24 2020, 05:44 AM , By : Simbarashe Mhlanga
Operator overloading in R reference classes
Operator overloading in R reference classes
seems to work fine You can take advantage of the fact that reference classes are S4 + environments, and define an S4 method:
TAG : r
Date : November 24 2020, 05:44 AM , By : Blessed Sade
How to enable user to switch between ggplot2 and gVis graphs in R Shiny?
How to enable user to switch between ggplot2 and gVis graphs in R Shiny?
it helps some times I'm making an app that allows the user to upload any csv file and the app will graph it. I'd like to allow the user to switch between graph styles, gVis and ggplot. The graphs work as implemented by themselves, but I can't seem to
TAG : r
Date : November 24 2020, 05:44 AM , By : sree
Is there an easy way to separate categorical vs continuous variables into two dataset in R
Is there an easy way to separate categorical vs continuous variables into two dataset in R
will help you Say I have about 500 variables available, and I'm trying to do variable selection for my model ( response is binary ) , I'm using iris data set avaialbe in R. Then
TAG : r
Date : November 24 2020, 05:44 AM , By : Rob McCarthy
Correct previous year by id within R
Correct previous year by id within R
hop of those help? I have data something like this: , Using dplyr using similar approach as @David Arenburg's
TAG : r
Date : November 24 2020, 01:01 AM , By : user2957685
Installation of rdyncall package for R
Installation of rdyncall package for R
it should still fix some issue I try it at Win8 and it is working. At win 8.1 and win7 it is not working. I dont known why, but if I after that copy "R Folder" from program files (from Win8) to Win 8.1. It is working.
TAG : r
Date : November 24 2020, 01:01 AM , By : user2957609
ggplot2 plot that evaluates the percentage and mean of a third variable at intersecting points
ggplot2 plot that evaluates the percentage and mean of a third variable at intersecting points
this one helps. I have a data set of a list of patients, two categorical variables, an outcome, and a length of stay. A sample of that data is as below: , Use dplyr (not ddplyr) to summarise your data thus:
TAG : r
Date : November 24 2020, 01:01 AM , By : user2957390
Error Handling with Lapply
Error Handling with Lapply
hop of those help? I am trying to run the following code in R: , Again, decorator is one of the possible good way to go:
TAG : r
Date : November 23 2020, 01:01 AM , By : user2957368
data.table - split multiple columns
data.table - split multiple columns
To fix this issue Here's how I would approach this using only data.table package (no need in creating G2 neither)Here we are first splitting by swd and then aggregating by both GNO and the part before : in the stw column
TAG : r
Date : November 23 2020, 01:01 AM , By : user2957254
How to compute the overall mean for several files in R?
How to compute the overall mean for several files in R?
seems to work fine Here are two methods I can think of:1) Using a for loop (memory efficient):
TAG : r
Date : November 22 2020, 03:03 PM , By : BENNYT
R: Graph Plotting: Subscripts in the legend like LaTeX
R: Graph Plotting: Subscripts in the legend like LaTeX
Does that help For subscripts in the legend, use the function expression, and the terms to be subscript between "[ ]" (square brackets):
TAG : r
Date : November 22 2020, 03:03 PM , By : Elquesigui
Restructuring data in R
Restructuring data in R
will help you You could do a transpose of the dataset ie. t(df) which swaps the columns for rows and the output will be a matrix (ie. a vector with dimension attributes). To strip off the dimensions and create the real vector, you could use as.vector
TAG : r
Date : November 22 2020, 03:03 PM , By : user2957010
Distance of pointsfrom cluster centers after K means clustering
Distance of pointsfrom cluster centers after K means clustering
hop of those help? It happens that you capture only the cluster element of the return value of kmeans, which returns also the centers of the clusters. Try this:
TAG : r
Date : November 22 2020, 03:03 PM , By : user2956769
R incorrect value of date function
R incorrect value of date function
may help you . I didn't see this simple solution in the linked questions, so I'm adding it here too.In base R you can simply use as.POSIXlt class which provides year attribute. You can then simply reduce 100 years.
TAG : r
Date : November 22 2020, 10:56 AM , By : user2956685
Package "Imports" not loading in R development package
Package "Imports" not loading in R development package
it helps some times That's the correct behaviour. Imports just means that code inside your package can see the functions that you import from other packages. The other packages aren't placed on the search path like with Depends.Further reading:
TAG : r
Date : November 22 2020, 10:56 AM , By : Mustafa Can
r - run a user defined function several times by taking column elements as parameters
r - run a user defined function several times by taking column elements as parameters
To fix the issue you can do When x[1,1]=net2013 , I get the output as 20. But what do I have to do to execute this piece of code for all the elements of the first column of x (i.e: x[ ,1]). While loop didn't execute and I'm having trouble with apply
TAG : r
Date : November 22 2020, 10:54 AM , By : user2956292
Create input$selection to subset data AND radiobuttons to choose plot type in Shiny
Create input$selection to subset data AND radiobuttons to choose plot type in Shiny
this will help I've been trying to utilize shiny to create several visualizations for several different classes of data. Last night I was able to subset data but I do not know how to switch plot types with this data. I have the following data frame:
TAG : r
Date : November 22 2020, 10:54 AM , By : user2956140
Generate crosstabulations from dataframe of categorical variables in survey
Generate crosstabulations from dataframe of categorical variables in survey
Does that help Here, we are getting the frequency for each column by using lapply and table. lapply gets the data.frame in a list environment and then use table after converting the column to factor with levels specified as 0:5. Use, prop.table to ge
TAG : r
Date : November 22 2020, 10:54 AM , By : user2956089

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