There are various parameters that control the behaviour of the animation, such as time interval, maximum number of animation frames, height and width, etc.
library(animation)
## see the first example in help(animation) on how to set and restore animation
## options
## use the PDF device: remember to set 'ani.type' accordingly
ani.options(ani.dev = "pdf", ani.type = "pdf", ani.height = 5, ani.width = 7)
## use the Cairo PDF device if (require('Cairo')) { ani.options(ani.dev =
## CairoPDF, ani.type = 'pdf', ani.height = 6, ani.width = 6) }
## don't loop for GIF/HTML animations
ani.options(loop = FALSE)
## don't try to open the output automatically
ani.options(autobrowse = FALSE)
## it's a good habit to restore the options in the end so that other code will
## not be affected
## how to make use of the hidden option 'img.fmt'
saveHTML(expr = {
png(ani.options("img.fmt"))
for (i in 1:5) plot(runif(10))
dev.off()
}, img.name = "custom_plot", use.dev = FALSE, ani.type = "png", description = "Note how we use our own graphics device in 'expr'.",
htmlfile = "custom_device.html")
Donate
As a freelancer (currently working as a contractor) and a dad of three kids, I truly appreciate your donation to support my writing and open-source software development! Your contribution helps me cope with financial uncertainty better, so I can spend more time on producing high-quality content and software. You can make a donation through methods below.
-
Venmo:
@yihui_xie, or Zelle:xie@yihui.name -
Paypal
-
If you have a Paypal account, you can follow the link https://paypal.me/YihuiXie or find me on Paypal via my email
xie@yihui.name. Please choose the payment type as “Family and Friends” (instead of “Goods and Services”) to avoid extra fees. -
If you don’t have Paypal, you may donate through this link via your debit or credit card. Paypal will charge a fee on my side.
-
-
Other ways:
WeChat Pay (微信支付：谢益辉) Alipay (支付宝：谢益辉) 
When sending money, please be sure to add a note “gift” or “donation” if possible, so it won’t be treated as my taxable income but a genuine gift. Needless to say, donation is completely voluntary and I appreciate any amount you can give.
Please feel free to email me if you prefer a different way to give. Thank you very much!
I’ll give back a significant portion of the donations to the open-source community and charities. For the record, I received about $30,000 in total (before tax) in 2024-25, and gave back about $15,000 (after tax).