Rbind Error In Pi J Subscript Out Of Bounds
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Error During Wrapup: Subscript Out Of Bounds
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Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just error in match.names(clabs, names(xi)) : names do not match previous names like you, helping each other. Join them; it only takes a minute: Sign up Subscript out of bounds - general definition and solution? up vote 18 down vote favorite 19 When working with R I frequently get the https://www.reddit.com/r/rstats/comments/46lixu/error_in_pij_subscript_out_of_bounds_w_rbind/ error message "subscript out of bounds". For example: # Load necessary libraries and data library(igraph) library(NetData) data(kracknets, package = "NetData") # Reduce dataset to nonzero edges krack_full_nonzero_edges <- subset(krack_full_data_frame, (advice_tie > 0 | friendship_tie > 0 | reports_to_tie > 0)) # convert to graph data farme krack_full <- graph.data.frame(krack_full_nonzero_edges) # Set vertex attributes for (i in V(krack_full)) { for (j in names(attributes)) { krack_full <- set.vertex.attribute(krack_full, j, index=i, attributes[i+1,j]) } } # Calculate reachability for http://stackoverflow.com/questions/15031338/subscript-out-of-bounds-general-definition-and-solution each vertix reachability <- function(g, m) { reach_mat = matrix(nrow = vcount(g), ncol = vcount(g)) for (i in 1:vcount(g)) { reach_mat[i,] = 0 this_node_reach <- subcomponent(g, (i - 1), mode = m) for (j in 1:(length(this_node_reach))) { alter = this_node_reach[j] + 1 reach_mat[i, alter] = 1 } } return(reach_mat) } reach_full_in <- reachability(krack_full, 'in') reach_full_in This generates the following error Error in reach_mat[i, alter] = 1 : subscript out of bounds. However, my question is not about this particular piece of code (even though it would be helpful to solve that too), but my question is more general: What is the definition of a subscript-out-of-bounds error? What causes it? Are there any generic ways of approaching this kind of error? r matrix sna share|improve this question asked Feb 22 '13 at 19:00 histelheim 1,42921439 1 @January has it. It means you're trying to get something, say a column or row, that doesn't exist. For example, say your table has 10 rows and your function tries to call for row 15. –Ben Feb 22 '13 at 19:16 1 And for anyone who's wondering about this PARTICULAR piece of code (from the McFarland network analysis labs) it's because igraph has changed its indexing scheme from 0-based to 1-based, and so '(i-1)' in 'subcomponent' should be just 'i'. –Sophologist Apr 30 at 17:46
threaded view ♦ ♦ | Report Content as Inappropriate ♦ ♦ error : subscript out of bounds Hi, I'm trying to calculate http://r.789695.n4.nabble.com/error-subscript-out-of-bounds-td2230583.html euclidean distance for my matrix rx1. Its a big matrix with 947 elements. However when i do the following, for(k in 1:947) for(m in (k+1):947){ A =rbind(A,c(k,m,ED(rx1[,k], rx1[,m]))) } I get the following error: ED(rx1[,k], rx1[,m]) : subscript out of bounds I checked for k in 1:100 and it runs fine; its a huge matrix and takes atleast an hour subscript out to run before I get the results so I dont wanna run the whole thing again and get the same error. Please help! -- Ayesha Khan MS Bioengineering Dept. of Bioengineering Rice University, TX [[alternative HTML version deleted]] ______________________________________________ [hidden email] mailing list https://stat.ethz.ch/mailman/listinfo/r-helpPLEASE do read the posting guide http://www.R-project.org/posting-guide.htmland provide commented, minimal, self-contained, reproducible code. jholtman subscript out of Threaded Open this post in threaded view ♦ ♦ | Report Content as Inappropriate ♦ ♦ Re: error : subscript out of bounds Take a look at what happens when k=947 (last time through the loop). You are then indexing 'm in 948:947' so m==948 which is outside your matrix. On Tue, May 25, 2010 at 2:49 PM, Ayesha Khan <[hidden email]> wrote: > Hi, > > I'm trying to calculate euclidean distance for my matrix rx1. Its a big > matrix with 947 elements. However when i do the following, > > for(k in 1:947) for(m in (k+1):947){ > A =rbind(A,c(k,m,ED(rx1[,k], rx1[,m]))) > } > I get the following error: > ED(rx1[,k], rx1[,m]) : subscript out of bounds > > I checked for k in 1:100 and it runs fine; its a huge matrix and takes > atleast an hour to run before I get the results so I dont wanna run the > whole thing again and get the same error. Please help! > > > -- > Ayesha Khan > > MS Bioengineering > Dept. of Bioengineer