similar to: [newbie]problem when using validates*

Hi, I have performed the cookbook tutorial. Before tailoring the views and controllers, when I put in the model recipe.rb: validates_uniqueness_of :title validates_length_of :title, :within => 1...20 And I tried to introduce some new recipe without the above conditions I got the message: --------------------------------------------------- New recipe 1 error prohibited this category from

Hi, I have a object 'zoo': dim(zz) [1] 720 5551 where some columns only have NA's values (representing land data in a sea surface temperature dataset) I find straightforward the use of 'na.approx' for individual columns from the zz matrix, but when applied to the whole matrix: zz.approx<-na.approx(zz) Erro en approx(along[!na], y[!na], along[na], ...) : need

Hi, I have this dataset where columns z1.3 and z1.4 are full of NA's. I want to perform some calculations in the remaining columns, but after doing this, I want to recontruct the original matrix. I can with: out <- which( colMeans( is.na( z ) ) == 1 ) gd<-z[, - out] select the columns full of NA's and those without that pattern. Then after doing the calculus I need to

Hi, I swear I have read almost all the posted messages about this issue, but it's evident I couldn't find an answer (surely esay) to my problem. What I want is the following: Make 8 days aggregates from a daily series like this (dput output): structure(c(6.91777181625366, 0.79051125049591, 9.00625133514404, 9.86966037750244, 14.4326181411743, 3.70155477523804, 9.67768573760986,

Hi All, I have 2 arrays: dim(a1) [1] 3 23 23 dim(a2) [1] 3 23 23 And I want a new array, to say, a3, where: dim(a3) [1] 6 23 23 where the first dimension is supposed to be (months) so the resultating array would start in jan and finish in june. Best regards, Antonio

Hi! I am trying to install in my R environment the rhdf5 package and library but it seems to have vanished from either the CRAN or BioConductors sites. Can you tell me where it would be possible to find it or any R library (or function) able to read hdf files? Sincerely, Nicolas Degallier UMR 7159 / IRD UR182 Laboratoire d'Oc?anographie et du Climat, Exp?rimentation et Approches

I have this challenge of converting a bit of html into an image file and then shrinking it into a thumbnail. The shrinking part shouldn''t be too bad, but what advice can you give on converting the html to the image? My thinking is that I will need to convert it to postscript or latex and then convert it to an image from there. Is there an easier / better approach? Michael

Dear Lest, I have a two-variable data frame as follows (the time peirod of the actual data set is 10 years): Date Amount 1 6/1/2007 1 2 6/1/2007 1 3 6/4/2007 2 4 6/5/2007 2 5 6/11/2007 3 6 6/12/2007 3 7 6/12/2007 3 8 6/13/2007 3 9 6/13/2007 3 10 6/18/2007 4 11 6/18/2007 4 12 6/25/2007 5 13 6/28/2007 5

Hello guys, After some hours fighting with shared mailbox, I finally understand how it works - and, realy, I can't believe how easy it is! So, to help others like me and to improve the shared mailbox with Dovecot this script does all the "hard work". I don't know if this group permit attachments, so, let's the link:

Conoces o has escuchado el impacto que puede tener la Inteligencia Artificial en las empresas? Encontr? algo que podr?a interesarte. El 30 de noviembre habr? una conferencia online por Zoom sobre c?mo usar la IA en departamentos de compras. Siento que esto es exactamente lo que han estado buscando para darle un giro a su negocio Ser?a incre?ble si pudieras unirte. H?blame si te interesa y te paso

Conoces o has escuchado el impacto que puede tener la Inteligencia Artificial en las empresas? Encontr? algo que podr?a interesarte. El 30 de noviembre habr? una conferencia online por Zoom sobre c?mo usar la IA en departamentos de compras. Siento que esto es exactamente lo que han estado buscando para darle un giro a su negocio Ser?a incre?ble si pudieras unirte. H?blame si te interesa y te paso

Hola muy buenos d?as. La semana pasada le envie un correo sobre una invitaci?n al evento Las 8 Reglas Clave para ser un Asistente Ejecutivo Exitoso. Le envio nuevamente de forma resumida la invitaci?n por si no tuvo tiempo de leerla, se trata de un curso para asistentes en formato online en vivo este 14 de diciembre. En este evento se veran los temas de inteligencia emocional y adaptabilidad en

Hola buen d?a. Me sugirieron comunicarme con usted, con el motivo de invitarle a participar en este evento internacional sobre Alta Direcci?n para empresarios que ser? el 18 y 19 de Enero 2024 con sede en el Hotel Sheraton CDMX. Accionistas, due?os, socios y directores que deseen dominar la administraci?n profesional de las Empresas, tendr?n la oportunidad en este programa global para reflexionar

Buenas, En R, como en la mayoría del software estadístico, no se utiliza ningún nivel de confianza sino que lo que se calcula es el p-valor asociado al contraste. De forma que cuanto más cerca de 0 esté el p-valor "menos credibilidad le damos a la hipótesis nula". Dicho mejor, debemos rechazar la hipótesis nula si el p-valor está por debajo de nuestro nivel de confianza. Por ejemplo,

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Buenas tardes. Tengo un ensayo de dos factores (Variedad y dosis) Quisiera hacer anovas para cada una de las dos variedades que estoy evaluando. Lo puedo hacer cogiendo los datos primero de una variedad y luego de la otra. Pero creo que hay un comando "by variedad" que lo hace si necesidad de andar modificando el archivo de datos. Pero no sé dónde hay que colocarlo. Si alguno me puede

Generation of a number of Christmas cards, most of them being animated. The name of each card includes the year in which it was created. Some examples are: - The christmas card that was writen in 2009 shows a ?caganer? ( https://en.wikipedia.org/wiki/Caganer): > library(christmas) > xmas2009caganer() - The 2019 design is about CRM (Christmas regression model) ;-) >

Generation of a number of Christmas cards, most of them being animated. The name of each card includes the year in which it was created. Some examples are: - The christmas card that was writen in 2009 shows a ?caganer? ( https://en.wikipedia.org/wiki/Caganer): > library(christmas) > xmas2009caganer() - The 2019 design is about CRM (Christmas regression model) ;-) >

Have Centos 5.3 installed in a HP ML110 server. After cloning disk using Clonezilla, if I issue a shutdown -h now, or any other command to shut down the server (i.e. init 0 or poweroff), instead of shutting down the server reboots. I googled but could't find any answer. ?Does anybody has a clue about why this is happening? -- Enrique Verdes <EVerdes at conatel.com.uy> Depto. de

Hi, we're planning a Samba 3 to Samba 4 upgrade, and we're quite happy with the tests we've done. Everything worked as expected, and I hope that the migration will be done without major issues (famous last words). But we're having some problems with subdomain delegation. Our setup is formed by the Samba server and a DNS server running Bind 9. The DNS server is used