Hi,
I've an issue regarding finding and removing the duplicate in a column/ row of
a matrix. I'm tried this method:
duplicate_matrix = matrix("1 2 3 3 3 4 5 6", rows = 8, cols = 1)
dup_ind = matrix(1,rows = nrow(duplicate_matrix),cols = 1)
a = nrow(dup_ind)
b = nrow(duplicate_matrix)
#Clumsy Unique. Can we check
with the systemml guy?
for(i in 2:nrow(duplicate_matrix)){
if(as.scalar(duplicate_matrix[i,]) == as.scalar(duplicate_matrix[i-1,]) ){
dup_ind[i,] = 0
}
}
My question is, is there any better way of doing it? In systemML, we don't have
method to find/remove/ count duplicate values.
Thank you!
Arijit
________________________________
From: Niketan Pansare <[email protected]>
Sent: Friday, April 14, 2017 9:14 PM
To: arijit chakraborty
Cc: Matthias Boehm1; Berthold Reinwald
Subject: Re: SystemML query
Thanks Arijit. I appreciate your feedback. I will convey your concerns to other
committers and urge them to be active on stackoverflow too. If you have already
posted questions on stackoverflow, please send me the links and I will do my
best to answer them :)
On Apr 14, 2017, at 6:50 AM, arijit chakraborty
<[email protected]<mailto:[email protected]>> wrote:
Thanks a lot Niketan! I didn’t expect you to reply my question. Actually I was
not sure if I can post question in that forum. And hardly people reply on
systemML in stackoverflow.
But from now on I’ll surely post my questions there. I’ve few more questions.
Thanks a lot again!
Regards,
Arijit
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
From: Niketan Pansare<mailto:[email protected]>
Sent: Thursday, April 13, 2017 11:01 PM
To: arijit chakraborty<mailto:[email protected]>
Subject: Re: SystemML query
Hi Arijit,
I am happy to help, however I would recommend to post question (along with
answer) on our mailing list
[email protected]<mailto:[email protected]> as
your question may help others as well :)
X = matrix(1, rows = 1, cols = 100)
J = matrix("10 20 25 26 28 31 50 67 79", rows=1, cols=9)
J = t(J) # Make J a column vector
I = matrix(1, rows=nrow(J), cols=1)
V = matrix(10, rows=nrow(J), cols=1)
output = table(I, J, V)
Thanks,
Niketan Pansare
IBM Almaden Research Center
E-mail: npansar At us.ibm.com<http://us.ibm.com>
http://researcher.watson.ibm.com/researcher/view.php?person=us-npansar
<graycol.gif>arijit chakraborty ---04/13/2017 09:20:38 AM---Hi Niketan, Hope
you are keeping well!
From: arijit chakraborty <[email protected]<mailto:[email protected]>>
To: Niketan Pansare/Almaden/IBM@IBMUS
Date: 04/13/2017 09:20 AM
Subject: SystemML query
<EC07C6C8E03748A1B86D1B5DBC6B46FD.png>
Hi Niketan,
Hope you are keeping well!
I got stuck in a systemML coding problem and don't know where to approach. So
mailing you. I know this is not fair, and will not repeat in future.
My question is the following:
I've a matrix of 1 row and 100 columns, matrix(1, rows = 1, cols = 100). I've
another column matrix of form matrix("10 20 25 26 28 31 50 67 79", rows = 1,
cols = 9). I want to add some value say 10, to 100 column matrix using the
values of second matrix position indicator. Rest of the columns' values remain
the same
How to do it here?
Thanks a lot! Regards,
Arijit
