On Aug 24, 2009, at 8:22 AM, rajclinasia wrote:
hi every one,
i have a excel sheet like this
labels starts ends
1 first task 1-Jan-04 3-Mar-04
2 second task 2-Feb-04 5-May-04
3 third task 3-Mar-04 6-Jun-04
4 fourth task 4-Apr-04 8-Aug-04
5 fifth task 5-May-04 9-Sep-04
now i converted this excel sheet into csv file and i read the csv
file into
R with the below code.
my.gantt.info<-read.csv("C:/Documents and
Settings/balakrishna/Desktop/one.csv").
> my.gantt.info<-read.csv(textConnection(" labels starts
ends
+ 1 first task 1-Jan-04 3-Mar-04
+ 2 second task 2-Feb-04 5-May-04
+ 3 third task 3-Mar-04 6-Jun-04
+ 4 fourth task 4-Apr-04 8-Aug-04
+ 5 fifth task 5-May-04 9-Sep-04"))
> my.gantt.info
labels...starts.....ends
1 1 first task 1-Jan-04 3-Mar-04
2 2 second task 2-Feb-04 5-May-04
3 3 third task 3-Mar-04 6-Jun-04
4 4 fourth task 4-Apr-04 8-Aug-04
5 5 fifth task 5-May-04 9-Sep-04
So that may look successful to you but that data.frame contains all of
that data in a single (character) column. Why? Because a function was
expecting commas on a file that did not have any. You will probably
get further along if you use read.table with header=TRUE. Maybe you
did something different or the file did have commas. With such a small
file, you really should present the results of
dput(my.gantt.info)
That will contain all the values and attributes of the R object ...
no more guessing, which is what we are doing now.
and for create gantt chart i used below code.
gantt.chart("my.gantt.info").
That looks wrong. my.gantt.info is an R object. Is gantt.chart (from
whatever unspecified package) really expecting to have its arguments
quoted? I would bet against that possibility.
I would also guess that, even if the data input issues are not a
problem and the quotes are removed, you still have not converted those
character values that you think look like dates into objects that R
will interpret as dates.
?as.Date
if i run this above code i am getting the error like this
Error in x$starts : $ operator is invalid for atomic vectors.
can anybody help in this aspect it would be very appreciable.
Thanks in Advance.
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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