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Hello Rails, I have a problem. I would like to use captcha in one of my project. When I did try to install, this is what I got $ sudo gem install captcha Building native extensions. This could take a while... ERROR: Error installing captcha: ERROR: Failed to build gem native extension. /usr/bin/ruby1.8 extconf.rb extconf.rb:1:in `require'': no such file to load -- mkmf (LoadError)

Buenas Os queria preguntar que ventaja le veis a las tibbles frente a los data.table, ya que para mi, quitando el uso de librerias como tidyr o purrr, en el resto prefiero usar data.table. Me parece igual de potente y mucho más rápido, y no le veo las supuestas ventajas, pero quiero conocer vuestra opinion. Gracias Jesús [[alternative HTML version deleted]]

Dear all, We have a large data set with temperature data for weather stations across the globe (15000 stations). For each station, we need to calculate the number of days a certain temperature is exceeded. So far we used the following S code, where mat88 is a matrix containing rows of 365 daily temperatures for each of 15000 weather stations: m <- 37 n <- 2 outmat88 <- matrix(0,

Wow, I think that was the first really potent flamewar we've had on llvmdev. Looking on the positive side, I think this shows that the llvm community is growing and drawing interest from new people with new perspectives. This is a good thing. I want to thank everyone who was courteous in their response. As others have said, it is really important to be polite and try to be

hello, my problem is like this: now after processing the varibles, the remaining 160 varibles(independent) and a dependent y. when I used PLS method, with 10 components, the good r2 can be obtained. but I donot know how can I express my equation with the less varibles and the y. It is better to use less indepent varibles. that is how can I select my indepent varibles. Maybe GA is good

Hey all, I get an undefined method `join'' for #<String NoMethodError. student.rb has_one :student_fail attr_accessor :student_fail_attribute #controller def student_fail @student = @student.find params[:id] def update_student_fail @student.build_student_fail params[:student][:student_fail_attribute] if @student.save #view form_for @student do |f|

I'd spent hours with Google trying to find how to control a separate software package from R via a UDP interface (I could run the package under a "system" command, but that was too slow). I finally figured out a way to communicate with UDP through R, and it works fine (using the "system" command) - it's also fast. (1) install software "socat" (available

Hola a todos, Tengo un equipo con windows 7 Home Premium 64 bits (8mb de RAM) y me gustaría saber como podría obtener el máximo rendimiento en R. He visto que hay dos o tres comandos: memory.size(max=TRUE) memory.limit = ... El caso es que si uso memory.size(max=TRUE) el maximo que me imprime por pantalla es bastante mayor en un equipo que tengo con windows xp a 32 bits que en el nuevo equipo

On 04/12/17 00:38, John R Pierce wrote: > On 12/3/2017 4:22 PM, Gregory P. Ennis wrote: >> I have not been able to get it to work Centos 7.4 machine.? Some of the >> ? centos user posts had indicated the nux repsitory had a Centos 7 kmod- >> wl, but it is not present when I tried to search or or install it at >> this time. > > this looks potentionally helpful >

Top posting: So, I do want the five years of LTS in 18.04. {I think - see below.] A substantial reason I'm not using debian/devuan is LTS support. I'm glad to be schooled in that regard, if someone has arguments to make. But I generally want to install a VM/Server/Box for a client and leave it alone as much as possible for as long as possible, and while it still works as initially

Everyone, I just purchased a new wfi card?that is identified as using lspci as : Broadcom Limited BCM4360 802.11ac Wireless Network Adapter (rev 03) I have not been able to get it to work Centos 7.4 machine. Some of the centos user posts had indicated the nux repsitory had a Centos 7 kmod- wl, but it is not present when I tried to search or or install it at this time. Has anyone had any

Otra opción es importar directamente los datos que necesites usando XLConnect (sin llevarlos a CSV). Ese paquete permite hacer cosas muy potentes desde el propio fichero de Excel. https://cran.r-project.org/web/packages/XLConnect/index.html Recomiendo, encarecidamente, la lectura de sus dos vignettes. Un Saludo, -- Miguel Ángel Rodríguez Muíños Dirección Xeral de Saúde Pública Consellería de Sanidade Xunta de Galicia http://dxsp.sergas.e...

Tienes razon de que hay una serie de paquetes que lo usan, pero me da que vienen impulsados por Rstudio desde el paquete tidyverse... Yo me resisto a usarlo. Me parece que queda mas limpio, pero no se porque no le pillo la gracia...Quizas sea el apoyo de Rstudio lo que me tire para atras... ________________________________ De: Carlos Ortega <cof en qualityexcellence.es> Enviado: miércoles,

Hola. Últimamente ha habido en la lista varios hilos sobre análisis de grandes volúmenes de datos con R. Las alternativas que se han mencionado son: - Usar una máquina más potente, vía Amazon Web Services, por ejemplo - Paralelización con openMp - h2o y su paquete para R, - Paquete sparklyr como wrapper de los algoritmos de spark, Y por supuesto, utilizar muestreo o incluso si tenemos

hy all actually i want to have a setup of five offices having round about 200 extensions ( each office having 35 to 45 ) which will be connected through asterisk. now either i should go for voip phones( hard phones ). or use any interface card to asterisk server to which the analogue phones will be connected. ----- if i use analogue phones in the above case ( we have analogue phones already )

This is primarily targeted at Koala_BR, but if someone happens to have a a fully working nouveay g80 setup, then go ahead. Maarten. (this is attempt 2, as 100 KiB seems to be the maximum allowed size) -------------- next part -------------- A non-text attachment was scrubbed... Name: 0001-NV50-Merge-crtc-creation.patch Type: text/x-patch Size: 2751 bytes Desc: not available Url :

On Mon, December 4, 2017 1:40 am, Alice Wonder wrote: > On 12/03/2017 11:10 PM, Phil Perry wrote: >> On 04/12/17 00:38, John R Pierce wrote: >>> On 12/3/2017 4:22 PM, Gregory P. Ennis wrote: >>>> I have not been able to get it to work Centos 7.4 machine.? Some of >>>> the >>>>?? centos user posts had indicated the nux repsitory had a Centos 7

Estimados: Tengo un directorio con varios archivos Excel quiero importarlos todos y grabarlos en un único archivo .dbf. Haciendolo uno por uno lo logro de la siguiente manera (solo tomo 2 archivos): archivos <- list.files(pattern = 'xls') a1 <- read.xls(archivos[1], perl="C:\\strawberry\\perl\\bin\\perl.exe",skip=12,dec=",",header=F,as.is=T) a2 <-