[R] Error in percentage stacked barplot

[Maria Lathouri]

Dear all, 
I am trying to plot the following table in stacked barplot in percentages and also horizontal.
Component      Sample 1      Sample 2      Sample 3CaO                    45                52                48SiO2                   25                22                18Al2O3                 15                11                14TiO2                     6                  5                6      Na2O                    5                  4                5CuO                      3                  3                5         Cl                         1                  3                4
When I tried the following functionbarplot(data,
+         main = "Stacked bar chart",
+         sub = "Subtitle",
+         xlab = "X-lab",
+         ylab = "Y-lab",
+         axes = TRUE, horiz = TRUE)
I got the following error
Error in barplot.default(hellisheidi, main = "Stacked bar chart", sub = "Subtitle",  : 
  'height' must be a vector or a matrix
I also tried barplot(as.matrix(hellisheidi)) but what I was getting was the three stacked columns for Samples 1, 2 and 3 but I was getting an empty column for Component, instead of being the variable in the Samples. 


I was hoping if you could help me on that. 
Thank you very much in advance. 
Kind regards,Maria




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