Publications by Jay Liao
DataM: HW Exercise 0316 2, 4, & 5
DataM: HW Exercise 0316 2, 4, & 5 HW exercise 2. HW exercise 4. HW exercise 5. Jay Liao 2020-03-22 HW exercise 2. Rolling three dice for 100,000 times and record the results mtx <- matrix(NA, 100000, 3) for (i in 1:100000) { for (j in 1:3) { mtx[i,j] <- sample(1:6, 1) } } Find all possible sums. sort(unique(rowSums(mtx))) [1] 3...
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DataM: HW Exercise 0316 1
DataM: HW Exercise 0316 1 Check the data structure Summarize the data Description statistics and data visualization Hypothesis testing Jay Liao 2020-03-22 A built-in demo for the data object ToothGrowth{datasets} is run by issuing the following command: example(ToothGrowth) Replicate the analysis in the style of the headache study to investi...
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DataM: HW Exercise 0316 3
DataM: HW Exercise 0316 3 Load in the data set and check its structure Data visualization Hypothesis testing Jay Liao 2020-03-21 The IQ scores and behavioral problem scores of children at age 5 were examined depending on whether or not their mothers had suffered an episode of post-natal depression. The main questions of interests were: (1) ...
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DataM: Inclass Exercise 0316 2-6
DataM: Inclass Exercise 0316 2-6 Inclass exercise 2. Inclass exercise 3. Inclass exercise 4. Inclass exercise 5. Inclass exercise 6. Jay Liao 2020-03-18 Inclass exercise 2. The notation, women{datasets}, indicates that a data object by the name women is in the datasets package. This package is preloaded when R is invoked. Explain the differe...
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DataM: Inclass Exercise 0316-1
DataM: Inclass Exercise 0316-1 input data checking data descriptive statistics plot data regression analysis diagnostics input data Read in a plain text file with variable names and assign a name to it. dta <- read.table("../data/math_attainment.txt", header = T) checking data Check the structure of data str(dta) 'data.frame': 39 obs. of 3...
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DataM HW-0309-2: CV
EDUCATION 學歷 Master of Science in Data Science, National Cheng Kung University (2020 - ) Bachelor of Business Administration in Statistics, National Cheng Kung University (Sep 2016 - Jun 2020) Bachelor of Science in Psychology, National Cheng Kung University (Sep 2015 - Jun 2020) JOURNAL ARTICLES 期刊發表 Liao, J. C.*, Lin, C. Y., Yu, Y...
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DataM Inclass-0309-5: Weather (Tainan)
天氣預報 【陰天有短暫雨，氣溫偏低，沿海空曠地區可能有強陣風。】 【更新時間：03/05 05:18】 昨天(4日)臺南市中西區最低溫發生在半夜，低溫17.3度，中午高溫26.9度。 今天(5日)大陸冷氣團影響及華南雲雨區東移，臺南地區為陰天且有短暫雨， 清晨低溫約 18度，...
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DataM Inclass-0309-3: Gapminder
Introduction Download and input the Gapminder data set. dta <- read.csv("https://4va.github.io/biodatasci/data/gapminder.csv") library(knitr) kable(head(dta)) country continent year lifeExp pop gdpPercap Afghanistan Asia 1952 28.801 8425333 779.4453 Afghanistan Asia 1957 30.332 9240934 820.8530 Afghanistan Asia 1962 31.997 10267083 853.1007 ...
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DataM Inclass-0309-4: GPA and GRE
<!DOCTYPE html> GPA and GRE GPA and GRE Doughnut Dump 02 三月, 2018 An education researcher is interested in how variables, such as GRE (Graduate Record Exam scores), GPA (grade point average) and prestige of the undergraduate institution (Rank), influence admission into graduate school (Admit). Read data dta <- read.csv("https://stats....
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DataM Inclass-0309-2: fhch2010
Abstract The abstract should address the following five questions: (1) why is the problem interesting, (2) how was the data set obtained, (3) what have you done to it, (4) what have you found, and (5) what do the results mean? All this and be less than 200 words! Introduction Writing papers should follow an hour-glass design, i.e., starting with...
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