Reasonably easy to avoid, but maybe an edge case that should be handled? Haven't looked yet to see how easy it would be to fix ... Am I missing something?
> library(Matrix) > m <- Matrix(0,nrow=3,ncol=3) > m 3 x 3 sparse Matrix of class "dsCMatrix" [1,] . . . [2,] . . . [3,] . . . > image(m) Error in seq.default(zrng[1], zrng[2], length.out = cuts + 2) : 'from' must be a finite number In addition: Warning messages: 1: In min(xx, na.rm = TRUE) : no non-missing arguments to min; returning Inf 2: In min(x) : no non-missing arguments to min; returning Inf 3: In max(x) : no non-missing arguments to max; returning -Inf 4: In min(x) : no non-missing arguments to min; returning Inf 5: In max(x) : no non-missing arguments to max; returning -Inf ## now modify matrix > m[3,3] <- 1 > image(m) ## works fine ## reset: > m[3,3] <- 0 > image(m) ## fails again ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
