Maths Tutorial: Patterns and Trends in Time Series Plots (statistics)
Вставка
- Опубліковано 31 бер 2011
- VCE Further Maths Tutorials. Core (Data Analysis) Tutorial: Patterns and Trends in Time Series Plots. How to tell the difference between seasonal, cyclical and random variation patterns, as well as positive and negative secular trends. For more tutorials, visit www.vcefurthermaths.com
Despite being an 'old' video, it contains valuable information that everyone can benefit from. Thank you for sharing
its the simplest explanation i fond in the internet thank you
Couldn’t agree more
Exactly what I needed. Simple and much better than other statistic explanation on various time series plots. Thanks a ton :)
Sometimes a simple explanation can be more efficient than academic language. Thank you. Every teacher should be aspiring to you.
Love the explanation! Great to see your personality coming through as well! Really keeps one interested in the content! Thank you so much!
I hadn't found such excellently explained video till date for stats. I have an interview into the data analytics field and this helped me understand and apply time series charts so well for whenever I use it in Tableau. Hope to see more coming :)
I would love to follow you for my Data Analytics learning journey.
you should be an inspiration to so many teachers!!
Simple explanation, very intuitive, examples available. The best introduction video to time series by far
I rarely comment on these types of videos, but now I just had to. I have my exam next week and this video taught me more than a chapter of 50 pages and 2 lectures did. THANK YOU!
Fantastic...I was in a trough but you pulled me to the peak of understanding of a time-series....thank you very much...
Thanks! Glad you like it - and thanks for commenting :)
thank you soooooooo so so so much, ive used all your videos for my exam summary book, and learnt heaps, saved my life
First time in my life I didn't got any feared about questions and I answerd correctly for all!
I need like you teacher. Thanks a lot for this !
This helped me a lot. Thank you so much !!
Finally I can tell the difference between seasonlaity and cyclicity. Thank you for explaining those in-depth. Appreciated the questions as well.
Thanks... now I understand the difference between seasonality and cyclic...very helpful.. greetings from Colombia
Monday!
I really liked this video, keep doing this great job
Very simple explanation...kudos!
Great video that explains very technical information in layman's terminology.
@Jordan - thanks man. you're very welcome! i'm really glad to hear the videos were helpful in studying and putting together your notes. that was the aim!! Good luck on exam 2 tomorrow!! Cheers
your explanations were amazing! thanks so much
EXCELLENT explanation!! Thank you so much!!!
Monday, Wow didn't expect that ^_^
My teacher didnt know the difference between cyclic and seasonal, and he never taught us secular trends. thanks alot
down..down..down......Monday....Very nice explaination,Helpul!Thank you!!!!☺️
Thanks, simplest explanation so far
Thank you so much, it was wonderful session thanks for providing so many examples it helped us make the concepts clear.
Amazing explanation !!!!! Wonderful !
love the video especially the Monday part it made laugh and made my day
MAANDAYYYYY !!!
Thanks alot Mam
Great video! I have the idea now of interpreting these time series plots
Best explanation so far, thank you!
best preparation for APICS exam, thank you
So far so best!!
Great explanation, thanks a lot!
Great video! Thank you so much!
that helped me allot as you explained it very well. THANK YOU
One of the best videos in UA-cam 💥💥
Thank you!!! great explanation for my exam paper!
Really helpful! Thanks a lot
i have a sac tomorrow.. and you just saved my life !
Excellent Explanation and Easy to Understand . . THANKS ~
thanks for making it easier to understand 🙏
Simple, good, and understandable explanation, thank you 👏.
Outstanding explanation. Thank you a lot
It's good lecture.... really......nice presentation .....
Excellent tutorial
This really helped me!!!
Amazing video. Thanks
That was great, thank you
MONDAY! Thank you for the simplest possible explanation.
Great explanation. Thank you so much
wonderful job
Thanks , very good explanation :D
excellent video.well done
Masterfully explained ❤
Thank you so much for this. Very understandable.
Thanks you very much it is really helpful
Thanks a lot , very easy to understand
Good video! Thanks
Amazing thank you
love this channel, i can understand the contents even when im using weed
May God bless you!!!
Nice explanation...
Would wish everyone explains so clear andsimple
Hi! Thank you very much for this great video :)
I have a little question about the "Random" sample (minute 10:30)... I understand that there is a single peak in the series, however this could be noise? Then the remaining series could be analyzed separately and in such a case find some pattern or regular behavior?
Thanks a lot for your answer!
Simple and Nice
Thank you teacher!
Thank you!
Kudos!!!🫡🫡
the way she speak "Monday".. respect from pakistan
Thannkyou Ma'am for explaning.
What if actual and predicted start from different scale or has a wide difference in their starting point
MONDAY!
15:05 i think the average snowfall graph has more of a negative trend pattern but it is cyclic because the peaks and troughs aren't happening over intervals of time
Yeah her estimation of negative/positive trends is quite off sometimes
Hi! is it seasonal when the peaks is at the same time interval but the troughs is not in the same interval sometimes?
excellent
I am trying to analyse a past series of numbers that oscillates between 107 & 210 with a normal frequency bell curve distribution of mean 162. What is the way to extrapolate/project short term future range for a trendless but cyclical time series?
Hard to know without seeing the graph, but it that distribution sounds seasonal yes
What if a few days are skipped in a row and no data has been entered? Will it still present a time chart from the first day and then the next after the skipped days?
Oh my God! Thank you!
Hi, thank you for the explanation. I’m still a little confused between cyclic and irregular fluctuations as some of the graphs I saw looked irregular but they were cyclic! Can you tell me how I can distinguish between the two?
Can I just say-- other than the awesome explanations, the writings on the screen is so fucking satisfying to look attt
Hey, when you say (around 18:30 mins) that the it does not have fluctuating peaks and troughs that is variation , relative to which line are you saying that the variation is less? I mean how do we calculate the rolling variance here?
How do you connect uneven spaces between dots on a line chart? Is this possible with excel?
thank you
3:34 Definitely I got feared 😂😂😂
Why did you stop making videos? It's been ages! give us a re-visit.
this video is great, but wtf is a doona?
do you have another video in time series please put the link
the last question fooled me! haha
Thank you mam from Pakistan 🤩
have a question, how to determine the graph has positif or negatif trend? by formula and not by eye visualize
I would rather pay you tuition than my stats prof......thank you!
@linrulezzz Yeah that's a tough one!! A whopping 50% of students taking that exam said the answer was D, with only 39% of students correctly answering E. I think the "only" part put a lot of people off, because it looks like it has some sort of variation, probably cyclical, given those peaks and troughs. But that's not one of your possible answers so you just have to go with the one that makes the *most sense*. Can you see how its definitely not seasonal though? Bastard of a question!! Hehe
Haha I know, I know, I'm such a dork... I get excited about the weirdest things. But you got my point right? Hehe. now every time you see a peak I hope you're thinking - "MONDAY!!!"
Further Maths your very nice and your video was very helpful god bless you
I died because of this substance
Are seasonality and cyclicity mutually exclusive?
@deyamo88 No worries! Glad it helped you out. Good luck with your VCE! :-)
I love MONDAY!
Who the heaven says secular. why not linear? Great video