Hi,

Many apologies for sending this twice.  I accidentally hit the send button
before I finished writing my mail. I am new to R and  I hope someone can
help me with my problem. I am trying to draw a side by side barplot.

There is a main experiment and there are many sub experiments within the
main experiment. I would like to draw a bar plot showing the number and type
of sub_experiments done for each main_exp.  For instance if the Main_Exp is
6, I would like to group the sub exp's for the main_exp and show that there
were two sub_exp's done an ELISA and a FCM and that the ELISA was done once
and the FCM was done twice.  Similarly for Main_Exp 7 I would like to show
that for there were ELISA,FCM,qPCR,Telometry done and that they had a count
of 3,3,2,5 respectively. This is what my dataset looks like:

Main_Exp_Name     Sub_Exp_Name  Sub_Exp_Count
1                            ELISA                 2
6                            ELISA                 1
6                             FCM                   2
7                             ELISA                 3
7                             FCM                   3
7                             Telometry            2
7                             qPCR                  5

The code that I have is

table(comparisons_new)
barplot(as.matrix(comparisons_new$Sub_Exp_Count),xlab="Main_Exp_Name",
ylab="Sub_Exp_Count",ylim=c(0,10),names.arg=(comparisons_new$Main_Exp_Name),beside=TRUE,legend=rownames(comparisons_new$Sub_Exp_Name),col=rainbow(5))

With this code, I am able to draw the barplot, but am having issues:

I am not able to group them together.  That is for each Main_Exp I am not
able to group the Sub_Exp's under it. It all shows up as one continuous
barplot without any spaces in between the Main_Exp's.

Also, I would like to be able to use the same colour for a particular
sub_Exp_Name no matter in which ever Main_Exp it may show up.  But, this is
not working for me.

Please help,

Brinda

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