Agronomy4future

CURRICULUM VITAE
BASIC STAT
STATISTICAL MODEL
- ANOVA
- REGRESSION
- SPLIT-PLOT
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- Mixed Model
- REML
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CODING
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Agronomy4future

Stories about cereals and statistics (plus coding)

[Crop Note] current corn stage (30 June 2022) at Guelph in Ontario, Canada

[Crop Note] current corn stage (30 June 2022) at Guelph in Ontario, Canada

June 23, 2022 JK Comments 0 Comment

The current growth stage of corn in Guelph is between V8 and V9.

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I'm a crop physiologist studying cereal crops. My current interests are crop physiology in fields (i.e. source-sink dynamics, nitrogen use efficiency, farming systems, etc.) using various statistical/data tools. Phenotypic plasticity and plant adaptation against environmental changes are also my interests. I’m always interested in programming (i.e. R, Python) for data science, and advanced SQL for big data analysis.
_______________________________
• Email: agronomy4future@gmail.com
• GitHub: github.com/agronomy4future
• GitHub page: agronomy4future.github.io
• YouTube: https://www.youtube.com/@agronomy4future/videos

annotate() arrange() c(rep() coalesce() colnames() data.frame() ddply () dplyr dplyr::summarize() facet_wrap() filter() fixef() geom_abline () geom_bar () geom_segment() geom_vline() github group_by() HSD.test() if() ifelse() list() mutate() na.rm=T nls() nlsLM() pivot_longer() pivot_wider() ranef() rbind() rename() reshape2::melt() residuals() sapply() scale_fill_manual () str_replace_all () subset() summarise() table() tapply() tdist() theme_grey() windows () write_xlsx() xtabs()

Mining academic papers from SCOPUS using Python enables us to easily and efficiently find the papers we want. In this article, I will introduce how to mine academic papers.

[Meta-Analysis] Mining Academic Papers from SCOPUS with Pybliometrics in Python (https://t.co/UFaLJVmPHn) pic.twitter.com/Td8SShF6Ef
— Jin.W.Kim (JK) (@el_trigo_JK) May 14, 2024

Stepwise regression is a method that iteratively constructs a regression model by selecting independent variables to include in the final model, and I summarized the basic concept.
#
Stepwise Regression: A Practical Approach for Model Selection using R (https://t.co/YeLnex72ng) pic.twitter.com/HFOIukVzhk
— Jin.W.Kim (JK) (@el_trigo_JK) May 8, 2024

Easily draw light spectrum curves. I'll share a simple R code to create light spectrum curves.

Coding Light Spectrum Curves for Plant Growth in R (https://t.co/emDwLTLv28) pic.twitter.com/DbZw1jPar2
— Jin.W.Kim (JK) (@el_trigo_JK) May 1, 2024

Data normalization improves scale uniformity and enhances visualization interpretability. I introduce several methods for data normalization.

Data Normalization Techniques: Excel and R as the Initial Steps in Machine Learning (https://t.co/5yUE2fjHfn) pic.twitter.com/7x6mU2ccgf
— Jin.W.Kim (JK) (@el_trigo_JK) April 29, 2024

#Agrivoltaic conference in June 2024. In shaded environments, various studies on crop physiology are available without the need for additional shading installations. Agrivoltaics also makes it an energy-efficient approach in crop science. I love this concept. pic.twitter.com/OiDtyKUxAC
— Jin.W.Kim (JK) (@el_trigo_JK) April 17, 2024

Solar Farm 2.0 #SCAPES Crops Research @ University of Illinois at Urbana-Champaign.
Last season, I altered the sources-sink strength of sorghum and soybean and collected valuable data. This upcoming season, I will analyze the genotypic variance of soybeans in response to shading. pic.twitter.com/76EqBF8kuB
— Jin.W.Kim (JK) (@el_trigo_JK) April 9, 2024

Solar Farm 2.0 Crops Research at UIUC. This is one of my researches I've been involved, and my main interest lies in understanding how shading affects the main yield components and determining the best strategy for managing crop growth under solar panels (https://t.co/ztp25lHCky)
— Jin.W.Kim (JK) (@el_trigo_JK) October 28, 2023

Solar Farm 2.0 SCAPES Crops Research @ University of Illinois Urbana-Champaign. https://t.co/fIqsmoMJYu
— Jin.W.Kim (JK) (@el_trigo_JK) September 12, 2023

Source-sink manipulation was performed on sorghum by removing alternate leaves throughout the entire canopy and half of the head 10 days after flowering, as referenced in Gambín and Borrás (2007). How does sorghum grain weight respond to the change in assimilates? pic.twitter.com/omR7oDQTO8
— Jin.W.Kim (JK) (@el_trigo_JK) August 9, 2023

In R Studio, how to exclude missing value (NA)?
[Meta-Analysis] Mining Academic Papers from SCOPUS with Pybliometrics in Python
[Data article] How many times do we need to compare each other according to group numbers ?
How to Sample a Portion of Data using R?
Stepwise Regression: A Practical Approach for Model Selection using R
In R, how to check the data structure?
A Practical Guide to Data Normalization using Z-Tests in Python
Coding Light Spectrum Curves for Plant Growth in R
[Data article] Data Normalization Techniques: Excel and R as the Initial Steps in Machine Learning
Waiting for planting crops at Champaign, IL (04/25/2024)
[Data article] Why is data normalization necessary when visualizing data?
How to draw a y-axis border when using facet_wrap() in R? (feat. scales=”free”)
How to randomize treatments using R?
Achieving Smooth Curve Graphs with R
How to convert character to POSIXct format in R?
How to Convert Time to Numeric for Line Graphs in R?
Summarizing Data by Group: Mean and Standard Error with MS Azure
SQL code sumamry
[TIMEBLOCKS PROJECT] 06 Mar 2024
Converting Character Values to Numeric in R: A How-To Guide
Coding environment
[TimeBlocks Project] 29 Feb 2024
How to add separate text to panels divided by facet_wrap() in R?
The Agrivoltaics Image created from DALL∙E3
Quantifying pre- and post-anthesis heat waves on grain number and grain weight of contrasting wheat cultivars
How to summarize data using Python?
How to create a data table in Python?
In R, how do I divide the legend into two rows in a graph?
Generating Graphs and Summarizing Data Tables in Data Analyst By ChatGPT (feat. texting to coding)
Efficient Data Management: Variable Filtering in SAS Studio

JK on [슬기로운 어바나-샴페인 생활 101] 어바나-샴페인에서 집 구하기 가이드April 22, 2024
https://www.facebook.com/groups/UofIKorea 여기 페이스북 가시면 학생들이 Sublease 정보 주로 올려 놓습니다. 여기서 원하시는 기간에 맞는 곳 찾으시면 해당 학생한테 연락하셔서 단기…
가쟈 on [슬기로운 어바나-샴페인 생활 101] 어바나-샴페인에서 집 구하기 가이드April 22, 2024
안녕하세요^^ 정보가 넘넘 도움이 됩니다. 저도 올해 8월쯤 연수로 한달 정도 머물 것 같습니다. 한달만 스튜디오를 랜트하는 것은 불가능할까요..?
JK on [슬기로운 어바나-샴페인 생활 101] 어바나-샴페인에서 집 구하기 가이드April 21, 2024
세후 급여가 2000 이라고 했을때 렌트비 1200 을 제외하고 800 으로 한달 생활을 할 수 있느냐의 질문이신데... 본인 라이프 스타일에…
NGH on [슬기로운 어바나-샴페인 생활 101] 어바나-샴페인에서 집 구하기 가이드April 21, 2024
정성스런 답변 대단히 감사드립니다. 차량은 물론 급여가 아닌 별도로 돈을 마련하여 구매할 예정이었습니다. 차량은 별도의 예산으로 구매한다는 가정 하에, 1200달러가…
JK on How to calculate the optimum sample size for 2-Sample t test (using R and G*Power program)?April 15, 2024
강종원씨 학교 선배분 맞으시죠? 종원씨로 부터 말씀 종종 들었습니다. 메세지 감사 드리며 하시는 학업에도 큰 성취가 있으시길요!!
JK on [슬기로운 어바나-샴페인 생활 101] 어바나-샴페인에서 집 구하기 가이드April 15, 2024
안녕하세요 먼저 박사 입학을 축하드립니다. 월급이 2600 이라는 것은 세전을 말씀하시는거겠죠? 미국 박사 월 급여가 2000 근처인걸로 알고 있습니다만 경우에…
NGH on [슬기로운 어바나-샴페인 생활 101] 어바나-샴페인에서 집 구하기 가이드April 15, 2024
안녕하세요? 글 잘 보고 있습니다. 올해 박사과정으로 입학하게 되었는데, 선생님의 글이 큰 도움이 되고 있습니다. 한가지 여쭙고 싶은 것이, 현재…

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