I'm trying to create a plot from elements of csv file which looks like this:
h1,h2,h3,h4 a,1,0,1,0 b,1,1,0,1 c,0,0,1,0 I tried the following code but am receiving an error saying
Error in data.frame(id = varieties, attr(mat, "row.names"), check.rows = FALSE) : arguments imply differing number of rows: 8, 20
My sample data has 8 columns and 20 rows (excluding header and row names). I tried to look up online and tried to implement a few fixes but the issue still persists. I'd really appreciate any help.
mat <- read.csv("trial.csv", header=T, row.names=1) varieties = names(mat) df <- data.frame(id=varieties,attr(mat, "row.names"), check.rows= FALSE) 3 Answers
Your data.frame mat is rectangular (n_rows!= n_cols).
Therefore, you cannot make a data.frame out of the column- and rownames, because each column in a data.frame must be the same length.
Maybe this suffices your needs:
require(reshape2) mat$id <- rownames(mat) melt(mat) I had the same error message so I went googling a bit I managed to fix it with the following code.
df<-data.frame(words = unlist(words)) words is a character list.
This just in case somebody else needs the output to be a data frame.
Though this isn't a DIRECT answer to your question, I just encountered a similar problem, and thought I'd mentioned it:
I had an instance where it was instantiating a new (no doubt very inefficent) record for data.frame (a result of recursive searching) and it was giving me the same error.
I had this:
return( data.frame( user_id = gift$email, sourced_from_agent_id = gift$source, method_used = method, given_to = gift$account, recurring_subscription_id = NULL, notes = notes, stringsAsFactors = FALSE ) ) turns out... it was the = NULL. When I switched to = NA, it worked fine. Just in case anyone else with a similar problem hits THIS post as I did.
