Zoom Logo

Modelling and Visualising Pandemic Data - Shared screen with speaker view
Meghnad Desai Academy of Economics
15:24
participants have been given permission to use their mics. Please unmute only when you have a question to ask/observation to make.
Poovitha Murugasamy
20:42
ARIMA
Aarushi Lunia
22:39
yes
Ketaki Kulkarni
22:43
yes
Meghnad Desai Academy of Economics
27:37
Recordings of all sessions will be shared by MDAE staff at the end of the 5 days.
Shubhangi Sharma
29:55
Sir your screen is not clear. The width of your screen is coming as too narrow on my screen.
Meghnad Desai Academy of Economics
32:53
install.packages("forecast")
Meghnad Desai Academy of Economics
38:35
ok, will ask sir
Poovitha Murugasamy
39:55
sir could you explain again the negative coefficient of ma1?
Aishwarya Sarangi
43:06
I am sorry but the screen isn't clear. It is too narrow.
Shubhangi Sharma
43:32
I think it is because sir is sharing his phone screen.
Mekhala Singhal
44:59
I meant that if we zoom in, we can see better.
Meghnad Desai Academy of Economics
46:32
participants are encouraged to use their mics to ask questions in case we have missed any.
Ketaki Kulkarni
47:19
sir, can you please explain AICc, what is it a penalty for, which parameter? I didn't understand what is the correction
Mekhala Singhal
49:51
SIr, it should be +, right?
Mekhala Singhal
51:20
I don't have audio mic rights
Mekhala Singhal
51:24
The Yt-2
Meghnad Desai Academy of Economics
52:45
plot(y1,type="l")
Meghnad Desai Academy of Economics
53:37
plot(diff(y1),type="l")
Meghnad Desai Academy of Economics
54:22
plot(diff(diff(y1)),type="l")
Amlesh Kanekar
55:23
> plot(y1,type="1")Error in plot.xy(xy, type, ...) : invalid plot type '1'
Ketaki Kulkarni
57:36
please see, type = "l". I think not type = "1"
Meghnad Desai Academy of Economics
58:05
you have mic rights, Akshay
Poovitha Murugasamy
59:30
dummy
Meghnad Desai Academy of Economics
01:00:10
yes, dummy
Rupeesha Galhotra
01:05:58
Error in auto.arima(y1, xreg = unlock5may) :object 'unlock5may' not found
Meghnad Desai Academy of Economics
01:05:59
did you go to the csv file manually and add a column called "unlock5may" like I did?
Meghnad Desai Academy of Economics
01:07:12
add unlock5may. For dates UPTO and INCLUDING 5 May, put 0. For all other dates, put 1
Meghnad Desai Academy of Economics
01:14:32
save the new csv and run the code from the VERY TOP again.
Aarushi Lunia
01:24:47
yes
Rupeesha Galhotra
01:24:47
yes
Ketaki Kulkarni
01:24:48
yes
Meghnad Desai Academy of Economics
01:25:10
p=3y<-tt[,p]Mumbai<-y[y>1]p=5y<-tt[,p]Thane<-y[y>1]ccf(Mumbai,Thane)
Shubhangi Sharma
01:36:36
Ya, we can hear you.
Mekhala Singhal
01:36:38
I think Sir can't hear.
Mekhala Singhal
01:37:04
Yes we can hear both now
Amlesh Kanekar
02:02:20
Fatima - the code you are typing up in this class - can you email it to us?
Mekhala Singhal
02:02:44
I have a question- what does the Mumbai1 and 1:153 code do?
Amlesh Kanekar
02:04:43
Fatima - can you check if my email id (amleshkanekar@gmail.com) is in the distribution list? I did not get some of the earlier mails.
Amlesh Kanekar
02:07:15
Are machine learning regression algorithms an alternative for ARIMA?
Aarushi Lunia
02:10:23
thank you sir
Poovitha Murugasamy
02:10:24
thank you sir
Poovitha Murugasamy
02:11:09
could you email the codes written in today's class ma'am?