Hi My name is Andreas Tilevik. With this channel, I thought that I could share my video lectures from my courses in statistics and systems biology at the University of Skövde, Sweden. Note that the target group is mainly with a non-mathematical background. The videos will be published in a logical order at: www.tilestats.com
I have used three models for carbon estimation and i want to select best model among these three using multiple logistic regression for carbon storage in urban forest. I have dbh, height as independent variable and carbon data as dependent variable for each 136 tree species. Can i use this regression? Pls inform me. Thank you.
Logistic regression should only be used if the dependent variable has a binary scale as shown in this video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-yhogDBEa0uQ.html
@@tilestats many thanks for your suggestion. Can you pls inform me how to arrange quantitative data for multiple linear regression or any video link, pls suggest.
Hi, I have found different formulas for the confidence intervals. Could you share the reference from the ones you show in this video? P.S. Thanks for your videos, they're great!
I don't remember where I first found it but you can find it, for example, here: www.statology.org/relative-risk-confidence-interval/ I know the equations can take different forms but they should, hopefully, end up in the same CI.
Beautiful explanation … 3 min into the video and I understood the whole gist of CCA! Thankyou so much !!! Whoever said that complicated things cannot be explained simply?
2:12 Why is your standard deviation for x1 = 0.61? If you sum [2.5, 2.0, 1.7, 1.4, 1.2, 0.9, 0.8] you get 10.5, then summing the squared differences gets you 0.32, then the square root of that is 0.56. I didn't get 0.61 for my standard deviation calculation of those samples.
If you compute the SD for a sample, you calculate the sample standard deviation by dividing by n-1 (not n): ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-pLH1QA4F9uE.htmlsi=fxdiTBQDmUv3SlRo
Python code for that is at the end of this video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-LHEj842yOF4.htmlsi=ra79JhB0i_S9U-TB and here www.tilestats.com/python-code/
@@tilestats There is a notebook, there is a like, there is my audience and you get my complete respect! One cannot appreciate a culinary delicacy only by the aroma. In this field we have to "get your hands on", try, reproduce (random_state is for that). Thank you for your attention and kindness.
Truly feel this is the best explanations I’ve read or seen. I knew the details were lurking in plain sight thank you. This channel deserves millions of views.
Hello, if I have two randomised groups and taking measurements for them at three time points. And am doing unpaired test to compare groups at each time point . Can we also do paired comparison within each group or is that wrong to do?
Yes you can, but I would suggest that you look at a mixed two-way ANOVA ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-NKMFgejt3U0.htmlsi=BWRDThnn37doDggd or a linear mixed-effect model ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-4bGG02Jsjyc.htmlsi=oLGyB1X5b9xu3Lxc
this video understand more than others.... sooooo thank u and keep it up............... give example is beter way to undestand.... i kindly request videos that realated to Machine Learning 🥰