[R] Help on Histogram ~ Barplot

[David Winsemius]

On May 27, 2015, at 2:28 AM, Shivi82 wrote:

> Hello All,
> I need help on creating a histogram for one of my data. The data is as below
> (sample):
> MFST_WT	Hours	PROCESS	Month	Weekday	Day of the Month
> 6,828	13	       INBOUND	Mar	             Fri	13
> 2,504	16	       INBOUND	Mar	             Fri	27
> 20	        16	       INBOUND	Mar	             Fri	27
> 10,262	16	       INBOUND	Mar	             Fri	27
> 2,500	17	       INBOUND	Mar	             Fri	13
> 3,938	16	       INBOUND	Feb	            Thu	26
> 798	        10	       INBOUND	Feb	            Sat	14
> 5,439	15	       INBOUND	Feb	            Mon	16
> 

What I'm seeing here is the likelihood that the data object has been input incorrectly (or is a mess in the original file?) There appear to be commas in what would presumably be a numeric column and a column name with spaces in it. There is also misregistration of some lines of data possible with tab-characters that were eaten by Nabble's interface.  If you want help under these circumstances you should either respond with the first 20 lines of the original data file posted through a mail-client bypassing Nabble or post dput( head(objname, 20))


> This data has these columns and total rows are 45000. 
> Now I need to group the data and create a bar plot based on total weight on
> a monthly basis. The code I have used is:
> barplot(mwlc$MFST_WT, names.arg = mwlc$Month, las=2, ylim=c(0,10000), col
> ="red",
>        border="orange", main="Monthly Weight")
> but this is showing an error. Please suggest. 
> 
> 
> 
> 
> --
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> 
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David Winsemius
Alameda, CA, USA