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28 CSS Select Boxes
Collection of free HTML and CSS custom select box code examples: dropdown, multiple, custom arrow, etc. Update of June 2018 collection. 4 new items.
css  select  html  webdesign 
7 days ago by wkorfhage
Creating plots in R using ggplot2 - part 1: line plots
p1 <- ggplot() + geom_line(aes(y = export, x = year, colour = product), data =, stat="identity")
R  statistics  production  learning  select 
11 days ago by slmeyer
Convert Character to Numeric in R (Example for String Variable & Data Frame)
char_columns <- sapply(data, is.character) # Identify character columns data_chars_as_num <- data # Replicate data data_chars_as_num[ , char_columns] <- # Recode characters as numeric apply(data_chars_as_num[ , char_columns], 2, as.numeric)) sapply(data_chars_as_num, class) # Print classes of all colums # x1 x2 x3 x4 # "numeric" "numeric" "factor" "numeric"
R  statistics  learning  select 
13 days ago by slmeyer
function - converting multiple columns from character to numeric format in r - Stack Overflow
df %>%
select(-x3) %>% # this removes the alpha column if all your character columns need converted to numeric
mutate_if(is.character,as.numeric) %>%
R  statistics  learning  select 
13 days ago by slmeyer
Using R: quickly calculating summary statistics from a data frame | On unicorns and genes
ddply(melted, c("sex", "treatment", "variable"), summarise,
mean = mean(value), sd = sd(value),
sem = sd(value)/sqrt(length(value)))
R  statistics  production  programming  select 
13 days ago by slmeyer
How to create an accessible language picker
In this article, we'll go through the steps of creating a custom language picker and keeping it accessible.
fridayfrontend  cssbasics  accessibility  language  select  aria  buttons 
15 days ago by spaceninja
EFPA - Ethics - Meta- and Model-Code
Meta Code was developed by EFPA Board of Ethics in 1995.

Model Code was developed by EFPA Board of Ehics in 2015. 
EAMI  production  ethics  select 
18 days ago by slmeyer
Developing the research question - Systematic Literature Reviews for Education - Library guides at Griffith University
Develop your research question

Start the process by:

considering a broad topic of research interest and then write it down 
considering specific areas you wish to examine within this topic 
considering key themes and elements of these specific topics to investigate in depth
considering how to work these key areas and elements into your research question.
Bear in mind that your supervisors will be looking for the following elements in your research question proposal:

What new knowledge will be generated for the discipline?
Why is it valuable?
How can the reader be assured the conclusions will be valid?
How will you present your findings?
phd  Research  review  tools  learning  select 
18 days ago by slmeyer

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