Creating a Histogram with Plot Data (ggplot2)

Question

I am a student programmer attempting to plot a histogram.

I have following sample histogram data.

The first column being what number is repeated and the second is the amount of repeats.

Currently, I am trying ggplot(df, aes(V1, V2)) + geom_bar() and I am not producing a graph.

I am probably overlooking an option. How would you plot this histogram?

Thank you

Bar chart would great but I get the errors. 'Error: Unknown parameters: binwidth, bins, origin, right' — Nicholas Hayden
– Nicholas Hayden, Commented Jul 14, 2016 at 20:28

Lowpar · Accepted Answer · 2016-07-14 20:12:17Z

1

Just pass the name of your variable into this code.

 hist(VARIABLE_NAME, 
      main="Histogram of XYZ", 
      xlab="X access", 
      border="blue", 
      col="green",
      xlim=c(100,700),
      las=1, 
      breaks=5)

answered Jul 14, 2016 at 20:12

Lowpar

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8 Comments

Nicholas Hayden Over a year ago

I am using a data frame with two variables. I am trying to make it with two vectors

Lowpar Over a year ago

I was wondering about that, I thought that the first vector was the row number because it descends in value. Do you have the prior code? I think where you have aes it should be factor and you should have 1 - ggplot(df, aes(x = factor(V1))) + geom_bar(stat = "bin")

Lowpar Over a year ago

what about ggplot(df, aes(x=(V1), y=V2)) + geom_bar(stat = "identity")

Lowpar Over a year ago

I think that might have to do with breaks.

Lowpar Over a year ago

+ scale_y_continuous(breaks = seq(0, 100, by = 20)) see - stackoverflow.com/questions/22818899/… it gives a great presentation on how ggplots works.

|

Adam · Accepted Answer · 2016-07-14 21:38:51Z

0

You can use the repeat function in order to get all of the data fleshed out

Data <- rep(V1, each = V2)
hist(Data)

This should do what you want it to and its simple and should be fast

answered Jul 14, 2016 at 21:38

Adam

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