Methods in Experimental Ecology I
Methods in Experimental Ecology I
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Intro to Multivariate Stats
multivariate stats summarize complex data and can really help to see patterns
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Відео

Logistic Regressions
Переглядів 10 тис.8 років тому
A brief intro to logistic regressions, which predict binary responses to various predictors
Intro to Mixed Effect Models
Переглядів 98 тис.8 років тому
Mixed effect models include fixed (e.g., planned treatments) and random effects (e.g., time, space). Very helpful but can kinda tricky to grasp at first.
Generalized Linear Models II
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example R input and output for lm and glm models, including residuals and AICs
Generalized Linear Models I
Переглядів 50 тис.8 років тому
The basics: how GLMs differ from linear models, what link functions are about, and how to choose among them
ANCOVAs
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the hybrid anova - regression model
Multiple regressions
Переглядів 1,1 тис.8 років тому
explaining a response with multiple factors
SMA regressions
Переглядів 2,6 тис.8 років тому
An intro to standard major axis regressions
OLS Regressions
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An intro to ordinary least square regressions (e.g., to predict Y from X)
Representing statistical variation
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Much variation abounds in measuring variation. Here we summarize best ways to present statistical variation.
Model selection with AICs
Переглядів 28 тис.8 років тому
A basis for the "new statistics" now common in ecology & evolution
ANOVAs + their matching experimental designs
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ANOVAsare prescribed by experimental designs - here they are summarized together
Analysis of variance I
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Intro to ANOVA - what it does, what it tells us (or not), and how it is related to regression
Z- and t-tests
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The basics of Z- and t-tests in R; how they work, and how they can be incorrectly applied. Also degrees of freedom and the central limit theorem.
Probabilities
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basic understanding of probabilities, and how to work with them. Sets up next lecture on Distributions
Distributions
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Distributions
Experimental designs #2
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Experimental designs #2
Experimental designs #1
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Experimental designs #1
Intro to Handling Data in R
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Intro to Handling Data in R
Data basics in R
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Data basics in R
RStudio Orientation
Переглядів 1 тис.8 років тому
RStudio Orientation

КОМЕНТАРІ

  • @dhaferalimohammedalbakre1259
    @dhaferalimohammedalbakre1259 2 місяці тому

    Awesome…

  • @simplifiedrecipespanindia
    @simplifiedrecipespanindia 2 місяці тому

    Best video to understand SMA regression. Thank you for sharing it.

  • @rubyanneolbinado95
    @rubyanneolbinado95 8 місяців тому

    Hi, why is R studio producing different results even though I am using the same call and data.

  • @__dekana__
    @__dekana__ 8 місяців тому

    Thank you so much for this!

  • @MohammedHAzeez
    @MohammedHAzeez 10 місяців тому

    Very interesting شكرا لك

  • @Sjimoh
    @Sjimoh 10 місяців тому

    Clear and straightforward. Thank for the explanation.

  • @fabiovargasbr
    @fabiovargasbr Рік тому

    Good stuff. Well explained.

  • @dhaferalbakre2665
    @dhaferalbakre2665 Рік тому

    Thanks! I would ask when I can use the model like lm, glm.. ? Is it instead of ordinary analysis?

  • @niceday2015
    @niceday2015 Рік тому

    Thank you very much

  • @lipe5331
    @lipe5331 2 роки тому

    Clear and engaging, thank you!

  • @ProfFeinman
    @ProfFeinman 2 роки тому

    One example of going from data to conclusion or, say, published paper does not seem likely by half way through. This is description of mixed vs. random. Does not show you what do with it. Maybe gets better second half.

  • @dhaferalbakre2665
    @dhaferalbakre2665 2 роки тому

    Really great job 👏

  • @laxmanbisht2638
    @laxmanbisht2638 2 роки тому

    is random effect and random parameter model same?

  • @da2015
    @da2015 3 роки тому

    Amazing!

  • @leg0oo
    @leg0oo 3 роки тому

    Hello, thanks for this really nice video! Could you please provide the image with the interactions plots and their explanation from min 13:30 and after? The quality of the video is not good enough...

  • @朝に弱い人
    @朝に弱い人 3 роки тому

    So the evaluation of GLM model is done by comparing AIC values? Do we use R2 or R2 adjusted as well?

  • @nano7586
    @nano7586 3 роки тому

    Searched for an explanation of "mixed effect models", got something totally badly introduced with very bad analogies. Sorry but you should term this video "for my students.." or alike.. this has no use for random people on youtube.

  • @heatherevans3476
    @heatherevans3476 3 роки тому

    Could you share the code that you used to make the graphs? particularly the one found at 11:07?

  • @alanhhernandezcastillo6639
    @alanhhernandezcastillo6639 3 роки тому

    chingon

  • @jamietsakalos01
    @jamietsakalos01 3 роки тому

    Great presentation! I wonder if you have a few citations for the use of smatr in non-allometric applications?

  • @maarten4132
    @maarten4132 3 роки тому

    Thank you

  • @loobtoob
    @loobtoob 3 роки тому

    amazing! this guy needs to post more... what school does he teach at

  • @perryschnabel
    @perryschnabel 3 роки тому

    I don't understand what's the difference between something being a block effect and a random effect.

  • @Dr.SariHamoud
    @Dr.SariHamoud 3 роки тому

    Thanks'

  • @Dr.SariHamoud
    @Dr.SariHamoud 3 роки тому

    I finally understand it.

  • @chrisrose7210
    @chrisrose7210 3 роки тому

    Ur explanations r the best! Thanks a lot

  • @angelaquiros7603
    @angelaquiros7603 3 роки тому

    A lecture of around 20 minutes is the perfect length!

  • @brazilfootball
    @brazilfootball 3 роки тому

    I bet those peaks every 4-5 years in web searches correlate with statistics students trying to graduate lol

  • @ogollafredrickotieno
    @ogollafredrickotieno 3 роки тому

    Wonderful

  • @zandere1
    @zandere1 3 роки тому

    Sorry, but I don't see any of AIC or AICc explained here. The formulas just pop out of thin air without ever being explained, why the terms are in there and what they really mean and do in the equation. Then there is talk about AICc correcting AIC for sample size "because there is some n in the denominator", but, sorry, that is no explanation at all. What does this term correct and why exactly does it take on this form? I could write down any old formulas with n's all over the place, and contend that they "correct" AIC...

    • @A-human-like-you
      @A-human-like-you 3 роки тому

      Did you find a better source that talked about this? If you did can you share it please. Thanks

    • @zandere1
      @zandere1 3 роки тому

      @@A-human-like-you Sorry, no. Not on youtube...

  • @urielmenalled7931
    @urielmenalled7931 3 роки тому

    It should be noted that the families can take more links (i.e. you can calculate family=gaussian(link="log"))

  • @ellenpasternack9750
    @ellenpasternack9750 4 роки тому

    This is so helpful, thank you!

  • @danielawilner8173
    @danielawilner8173 4 роки тому

    Thank you so much for this clear explanation! It is so helpful!!!

  • @samuelhughes804
    @samuelhughes804 4 роки тому

    I always heard that looking at the base R diagnostic residual plots for generalized linear models isn't useful in the same way it is for general linear models? would like confirmation of the oppisite as it would make my current stats work easier haha

  • @alessandrarodriguez4829
    @alessandrarodriguez4829 4 роки тому

    Your videos are so helpful and the way you explain the ideas and methods makes it easy to follow and understand! Thank you!

  • @mikhailshevelev3346
    @mikhailshevelev3346 4 роки тому

    Brilliant explanation

  • @rikudoukarthik
    @rikudoukarthik 4 роки тому

    These videos are great! I'm glad to find an ecology-focussed series on statistics!

  • @kasahuntilahun6860
    @kasahuntilahun6860 4 роки тому

    Please interpret the result of gamma with log link coefficient results

  • @xsnowolflyx
    @xsnowolflyx 4 роки тому

    Thank you, your presentation is very clear and easy to follow :)

  • @hansvanlennep6376
    @hansvanlennep6376 4 роки тому

    Thank you for your clear explanation! Can I ask you a question about your example? I was wondering how the AICc of your quadratic model is lower then you linear model? Because if you look at the CI's of your coefficients in the quadratic model they seem to be bigger then the coefficients of the linear model. Now if i'm not mistaking, this means that the residual sum of squares (used to calculate the CI's for these coefficients) in the quadratic model must be larger then in the linear model? Or does the formula in the AICc utilize a total residual sum of squares? That is still not fully clear to me.... I hope that you can elaborate on this question.

  • @faanlouw6109
    @faanlouw6109 4 роки тому

    You offer so much irrelevant stuff. Focus on your topic. We know you are clever.

    • @methodsinexperimentalecolo5000
      @methodsinexperimentalecolo5000 4 роки тому

      Thanks for your heartwarming feedback. Please know that these "lectures" are for a graduate course in stats (sciences.ucf.edu/biology/d4lab/methods-1); thus my unclever attempts at background and context. Intended audience = my students at my campus. Accidental (and fun) benefit = others may also learn. These are not merely how-to instruction sets, like how to specify a glm. For that, we use materials in class. If that is what you seek, please examine the link above for more info. Stay healthy and ua-cam.com/video/rph_1DODXDU/v-deo.html, Dave Jenkins

    • @faanlouw6109
      @faanlouw6109 4 роки тому

      Methods in Experimental Ecology I thanks. Very interesting course to offer. I will certainly go through it carefully.

  • @onyekanzie2100
    @onyekanzie2100 4 роки тому

    Excellent explanation. Many thanks

  • @danielawilner8173
    @danielawilner8173 4 роки тому

    Thank you so much! This is so so so helpful!

  • @michaelmckenna7405
    @michaelmckenna7405 4 роки тому

    this is not the kerri chandler you are looking for

  • @Jojo-hz6rk
    @Jojo-hz6rk 4 роки тому

    This was just awesome...

  • @smallypuppy22
    @smallypuppy22 4 роки тому

    I really enjoy the analogies you use in your videos, the greenhouse one is really effective

  • @smallypuppy22
    @smallypuppy22 4 роки тому

    You are pretty much the best teacher of these kind of topics, a perfect balance beetwen simple and difficult key concepts

  • @sinnerforloving9236
    @sinnerforloving9236 4 роки тому

    I have an exam tomorrow... multivariate data? and I swear I'm watching this last-minute because my teacher's messed up. Idk if this is even related, cause I'm confused.. but hope I pass? lol...

  • @aliciahamer154
    @aliciahamer154 4 роки тому

    The graph at 6:23, where did you get it from? I would like to mention it in my report.

  • @johannamartinez5463
    @johannamartinez5463 4 роки тому

    Thanks!