Most answered questions in Data Analytics

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Error saying " "solarspectrum3" not resolved from current namespace (SolarSpectrum)"

the call to .C() or .Call() needs to be amended in ...READ MORE

Nov 12, 2018 in Data Analytics by Maverick
 • 10,840 points • 596 views
0 votes
1 answer

Error saying " Failed to connect to database: Error: Lost connection to MySQL server at 'handshake"

try this: library(RODBCext) sqlString <- "Select * from yourtable ...READ MORE

Nov 12, 2018 in Data Analytics by Maverick
 • 10,840 points • 2,622 views
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Error saying "'names' attribute [27] must be the same length as the vector [21]"

When you end up with this error ...READ MORE

Nov 12, 2018 in Data Analytics by Maverick
 • 10,840 points • 3,835 views
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Error sayimg "Executing test function test.should_error ... Timing stopped at: 0 0 0 " in R

In your testthat tests you declare an anonymous function like so: function() ...READ MORE

Nov 12, 2018 in Data Analytics by Maverick
 • 10,840 points • 812 views
+1 vote
1 answer

Error saying "The following signatures couldn't be verified because the public key is not available: NO_PUBKEY"

Try this: sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys ...READ MORE

Nov 12, 2018 in Data Analytics by Maverick
 • 10,840 points • 916 views
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Creating barplot with standard errors plotted in R

For df1 plot # Group data by when ...READ MORE

Nov 12, 2018 in Data Analytics by Maverick
 • 10,840 points • 915 views
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1 answer

R installation errors on ubuntu 14.04

 In /etc/apt/sources.list or one of the /etc/apt/sources.list.d/*.listreplace xenial with trusty and run apt-get update. After ...READ MORE

Nov 9, 2018 in Data Analytics by Maverick
 • 10,840 points • 421 views
+1 vote
1 answer

Error saying " ERROR: unused argument (InformationCriterion = InformationCriterion[j]) "

Brief invoke REBMIX as : REBMIX[[i, j, k]] ...READ MORE

Nov 9, 2018 in Data Analytics by Maverick
 • 10,840 points • 434 views
+1 vote
1 answer

Error saying cannot open file 'file.pdf' when trying to save a plot in ggplot

You could try adding the following line ...READ MORE

Nov 9, 2018 in Data Analytics by Maverick
 • 10,840 points • 7,599 views
+1 vote
1 answer

Display errors in sweave

s Shane suggests, use <<echo=TRUE,eval=FALSE>> for the code ...READ MORE

Nov 9, 2018 in Data Analytics by Maverick
 • 10,840 points • 396 views
0 votes
1 answer

Error saying expected symbol in R

Write the code in the following way: myfunction ...READ MORE

Nov 9, 2018 in Data Analytics by Maverick
 • 10,840 points • 2,727 views
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1 answer

Error saying "some group too small for qda"

It's not wrong code (there is little ...READ MORE

Nov 9, 2018 in Data Analytics by Maverick
 • 10,840 points • 4,210 views
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1 answer

Error saying "R Error: package ‘lme4’ required by ‘pbkrtest’ could not be found"

Windows 7, revo R 3.2.3 construct a directory ...READ MORE

Nov 9, 2018 in Data Analytics by Maverick
 • 10,840 points • 565 views
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1 answer

Error saying "Error in x$children[[1]] : subscript out of bounds" while web scrapping

You could try the httr library: library(XML) library(httr) url <- 'http://www.sainsburys.co.uk/shop/gb/groceries/fruit-veg/all-fruit#langId=44&storeId=10151&catalogId=10122&categoryId=12545&parent_category_rn=12518&top_category=12518&pageSize=30&orderBy=FAVOURITES_FIRST&searchTerm' doc <- ...READ MORE

Nov 9, 2018 in Data Analytics by Maverick
 • 10,840 points • 1,883 views
0 votes
1 answer

Error saying "Error in xy.coords(x, y, xlabel, ylabel, log) : 'x' and 'y' lengths differ"

Make sure is a factor time <- as.factor(c("pm", ...READ MORE

Nov 9, 2018 in Data Analytics by Maverick
 • 10,840 points • 7,135 views
0 votes
1 answer

Error saying "object 'mvnorm' not found"

You seem to have made a small ...READ MORE

Nov 9, 2018 in Data Analytics by Maverick
 • 10,840 points • 1,069 views
0 votes
1 answer

Errors saying "Error: unexpected '}' in "}"

This is a syntax error: Enclose your if ...READ MORE

Nov 8, 2018 in Data Analytics by Maverick
 • 10,840 points • 2,815 views
+1 vote
1 answer

How do i send R errors from console to standard java output?

R offers a command to save its ...READ MORE

Nov 8, 2018 in Data Analytics by Maverick
 • 10,840 points • 487 views
0 votes
1 answer

catch warnings and errors in rpy2

To get the warnings as an rpy2 ...READ MORE

Nov 8, 2018 in Data Analytics by Maverick
 • 10,840 points • 1,228 views
0 votes
1 answer

Error:Shadow graphics device error: r error 4 (R code execution error) when trying to use plot() and ggplot()

Its working perfectly fine with R version ...READ MORE

Nov 8, 2018 in Data Analytics by Maverick
 • 10,840 points • 2,764 views
+1 vote
1 answer

How to give line numbers in errors in R?

Use the following command: options(show.error.locations = TRUE) READ MORE

Nov 8, 2018 in Data Analytics by Maverick
 • 10,840 points • 701 views
+1 vote
1 answer

R errors in eclipse

remove import android.R Then clean and rebuild project. R ...READ MORE

Nov 8, 2018 in Data Analytics by Maverick
 • 10,840 points • 730 views
+1 vote
1 answer

How to read R errors through JRI

You'll be able to perform those R-Expressions, ...READ MORE

Nov 8, 2018 in Data Analytics by Maverick
 • 10,840 points • 708 views
0 votes
1 answer

Errors on eclipse console as soon as I create a new activity

Restart your eclipse might be solve this ...READ MORE

Nov 8, 2018 in Data Analytics by Maverick
 • 10,840 points • 368 views
+1 vote
1 answer

How to find out which version of R is loaded

You can use sessionInfo() to accomplish that. > sessionInfo() R version ...READ MORE

Nov 8, 2018 in Data Analytics by Maverick
 • 10,840 points • 465 views
0 votes
1 answer

Error saying "R cannot be resolved" on eclipse while running a simple application

Every time you get this error, check ...READ MORE

Nov 8, 2018 in Data Analytics by Maverick
 • 10,840 points • 1,103 views
0 votes
1 answer

Whats the difference between withCallingHandlers and trycatch?

tryCatch withCallingHandlers Program execution breaks and continues with the first expression ...READ MORE

Nov 6, 2018 in Data Analytics by Kalgi
 • 52,360 points • 957 views
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1 answer

What is withCallingHandlers and how does it work?

withCallingHandlers works similar to tryCatch but remembers the call stack down ...READ MORE

Nov 6, 2018 in Data Analytics by Kalgi
 • 52,360 points • 2,087 views
+1 vote
1 answer

What are the drawbacks of trycatch method?

These are the drawbacks of using try-catch: You ...READ MORE

Nov 6, 2018 in Data Analytics by Kalgi
 • 52,360 points • 2,255 views
0 votes
1 answer

How do I ignore errors in R

With the try function you can handle errors to ...READ MORE

Nov 6, 2018 in Data Analytics by Kalgi
 • 52,360 points • 10,188 views
0 votes
1 answer

How do I check and catch errors in R

With tryCatch you can handle errors as you want: an.error.occured ...READ MORE

Nov 6, 2018 in Data Analytics by Kalgi
 • 52,360 points • 461 views
+1 vote
1 answer

Plotting standard error in R

You can probably use dot plot for ...READ MORE

Nov 6, 2018 in Data Analytics by Kalgi
 • 52,360 points • 508 views
+1 vote
1 answer

How to check if object is defines in R?

You can use the exists function for ...READ MORE

Nov 6, 2018 in Data Analytics by Kalgi
 • 52,360 points • 473 views
0 votes
1 answer

how to run a logistic regression with clustered standard errors in R?

have a look at rms package. lrm is logistic ...READ MORE

Nov 6, 2018 in Data Analytics by Kalgi
 • 52,360 points • 1,518 views
0 votes
1 answer

Error saying "no applicable method for 'meta' applied to an object of class" when trying to create TermDocumentMatrix

Heyy @Hannah, the following line of code ...READ MORE

Nov 6, 2018 in Data Analytics by Kalgi
 • 52,360 points • 6,816 views
+1 vote
1 answer

Try catch in R

The most straightforward way is to wrap ...READ MORE

Nov 6, 2018 in Data Analytics by Kalgi
 • 52,360 points • 444 views
0 votes
1 answer

If-else in R code

x <- c(.5, 0.2, 2, 3.4, 0.4, ...READ MORE

Nov 5, 2018 in Data Analytics by Kalgi
 • 52,360 points • 590 views
+1 vote
1 answer

as.data.frame not working expected

Try using: setNames(as.data.frame(t(normData[-1])), normData[[1]]) ...READ MORE

Nov 5, 2018 in Data Analytics by Kalgi
 • 52,360 points • 1,455 views
0 votes
1 answer

How do I import document files in R programming

Try the following: read.table("~/SMSSpamCollection", header=TRUE, sep="\t") Change "~/" to the "ptah/to/your/file/" Mess around ...READ MORE

Nov 5, 2018 in Data Analytics by Kalgi
 • 52,360 points • 709 views
+1 vote
1 answer

Unload package without restarting R

You can use the unloadNamespace command, as ...READ MORE

Nov 5, 2018 in Data Analytics by Kalgi
 • 52,360 points • 586 views
0 votes
1 answer

Is it possible to use a where clause within ggplot?

You can use the subset function to filter rows ...READ MORE

Nov 5, 2018 in Data Analytics by Kalgi
 • 52,360 points • 1,587 views
0 votes
1 answer

Sort function in R

> set.seed(1) > s <- sample(seq(8, 20, by ...READ MORE

Nov 5, 2018 in Data Analytics by Kalgi
 • 52,360 points • 546 views
+1 vote
1 answer

How to use nnet to have user specified initial weights instead of defaults for running a neural network algorithm?

The custom weights shall have the following ...READ MORE

Nov 5, 2018 in Data Analytics by Kalgi
 • 52,360 points • 424 views
0 votes
1 answer

How to download the historical data from two random picked stocks?

assign the output of sample into a variable. my_picks <- ...READ MORE

Nov 5, 2018 in Data Analytics by Kalgi
 • 52,360 points • 508 views
0 votes
1 answer

Trying to add an extra column to an already existing matrix

Try this @Ali, a <- matrix(1:5000, nrow=100) a <- ...READ MORE

Nov 2, 2018 in Data Analytics by Maverick
 • 10,840 points • 425 views
0 votes
1 answer

How do I change background color in Rstudio

Follow this: tools > global options > appearance ...READ MORE

Nov 2, 2018 in Data Analytics by Maverick
 • 10,840 points • 18,924 views
0 votes
1 answer

Change IP address on RStudio

The default is 0.0.0.0, but if you ...READ MORE

Nov 2, 2018 in Data Analytics by Maverick
 • 10,840 points • 1,677 views
+1 vote
1 answer

Can R and hadoop be used together to get better results?

The most common way to link R ...READ MORE

Nov 2, 2018 in Data Analytics by Maverick
 • 10,840 points • 349 views
+1 vote
1 answer

What is dynamic scoping in R?

Under dynamic scope, if an “unknown” variable ...READ MORE

Nov 2, 2018 in Data Analytics by Maverick
 • 10,840 points • 794 views
0 votes
1 answer

What is lexical scoping in R

Under lexical scoping rules, if an “unknown” ...READ MORE

Nov 2, 2018 in Data Analytics by Maverick
 • 10,840 points • 704 views
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