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Alex
Alex

Reputation: 151

Curious error using the function barplot

I have a problem using the barplot function to Print a histogram. Every time I call I get the following error. I have checked the functions, but I do not see any errors. I put the function a data.frame input sample, the error and giving me an example of a result. Is there any other way to make histograms as the image?

It's funny because sometimes the function gives the result but other fails giving the error

function:

HIST_EPC_list<-function(DF_TAG_PHASE_EPC_counter){
  barplot(DF_TAG_PHASE_EPC_counter$Num_EPC, names.arg = DF_TAG_PHASE_EPC_counter$Tag_PHASE, xlab = "Tag_PHASE", ylab = "Num_EPC", main="Histograma Num tags/PHASE:", width=10)
}

data.frame example: DF_TAG_PHASE_EPC_counter

 Tag_PHASE Num_EPC
1     123.0       1
2      75.0       1
3      78.0       1
4      81.0       2
5      84.0       1
6      87.0       1
7      90.0       2
8      98.0       1

Error:

Error in plot.new() : figure margins too large
Called from: barplot(DF_TAG_RSSI_EPC_counter$Num_EPC, names.arg = DF_TAG_RSSI_EPC_counter$Tag_RSSI, 
    xlab = "Tag_RSSI", ylab = "Num_EPC", main = "Histograma Num tags/RSSI:", 
    width = 10)

enter image description here

Upvotes: 0

Views: 191

Answers (1)

Pop
Pop

Reputation: 12401

The error "figure margins too large" comes from the fact you are trying to plot a too large graphics compared to the size of the plot frame.

It can happen for instance in RStudio when the plot zone is small.

You can try these these things:

  • Enlarge the plot zone in RStudio
  • Use x11() command before plotting (it creates a new plot window)
  • Use par(mar=...) function to reduce the margins in your plot. For example, try par(mar=c(0.1,0.1,0.1,0.1) (see ?par)

Upvotes: 1

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