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Installing R and RStudio1 Lesson2 Quizzes
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The RStudio IDE1 Lesson2 Quizzes
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Coding Basics1 Lesson2 Quizzes
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Assignment | Workshop 11 Quiz
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Data dive: Ebola in Sierra Leone1 Lesson2 Quizzes
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RStudio Projects1 Lesson2 Quizzes
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Workshop 21 Lesson1 Quiz
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Using R Markdown1 Lesson2 Quizzes
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Data classes & structures (deprec)2 Lessons
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Workshop 31 Lesson1 Quiz
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Select & rename1 Lesson3 Quizzes
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Filter1 Lesson3 Quizzes
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Workshop 41 Quiz
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Mutate1 Lesson3 Quizzes
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Workshop 51 Lesson1 Quiz
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Conditional mutate1 Lesson3 Quizzes
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Group by and summarize1 Lesson2 Quizzes
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Workshop 61 Lesson1 Quiz
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Other grouped operations1 Lesson2 Quizzes
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Workshop 71 Lesson1 Quiz
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Intro to ggplot21 Lesson2 Quizzes
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Scatter plots and smoothing1 Lesson2 Quizzes
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Workshop 81 Lesson1 Quiz
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Lines, scales, and labels1 Lesson2 Quizzes
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Overview of the EpiGraphHub web platform
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Data exploration on EpiGraphHub1 Quiz
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Workshop 91 Lesson1 Quiz
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Workshop 101 Lesson1 Quiz
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Final project1 Lesson1 Quiz
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Getting help1 Lesson1 Quiz
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Quiz contributions16 Lessons
Participants 76
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Lesson code
Please download the zip folder below to code along with the instructor.
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Lesson notes
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Very good presentation
for the data quiz, we were advised to use the adorn_pct_formatting() function. the table output shows a new col named “valid_percent”. what does this col refer to (as opposed to n percent)?
Hi Christine, When
NAvalues are present,tabyl()also displays “valid” percentages, i.e., with missing values removed from the denominator.Got it, that makes sense. Thanks Joy!
yao_bmi %>% mutate(bmi_integer = as.integer(bmi), I think there might be something wrong with this part of the code provided in the lesson. We dont define yao_BMI from yao dataset first. I tried to do it in the code with this, but it still didnt work: yao_bmi <- yao %>% select (bmi) %>% mutate(bmi_integer… Read more »
Hi Snigdha, yao_bmi is created in section 7, just before the practice question. yao_bmi <- yao %>% select(weight_kg, height_cm) %>% # first obtain the height in meters mutate(height_meters = height_cm/100) %>% # then use the BMI formula mutate(bmi = weight_kg / (height_meters)^2) Please make sure you have run all the code above the code… Read more »