ㅃㅃㅂ

아마존에서 구매한 uni USB-C to DP 케이블 팝니다. 스펙상 4K/60hz 이긴 하지만 됐다.  LG 4K 모니터 (DP) 맥북프로 터치바 2018(usb-c) 연결상 될때도 있고 안될때도 있어서  *1080p/60hz로 사용하실분만 구매바랍니다*  (아마존 리뷰검색시 델모니터에는 4K/60hz에서 잘 작동했다는 글이 있지만 확인불가입니다.) 2개 보유중입니다 (한개는 박스가 없어요.) 개당 12000원 환불 불가 택배비불포/직거래 수원 아주대병원 입니다. 

wordpress 이전

사이트 평가 hestia\search.php template-parts\content.php hestia\inc\views\blog\class-hestia-blog-post-layout.php https://developers.google.com/speed/pagespeed/insights/https://tools.pingdom.com 이미지 cdn으로 옮기기

test

abcdefghijklmnopqr1234567890abcdefghijklmnopqr1234567890abcdefghijklmnopqr1234567890abcdefghijklmnopqr1234567890abcdefghijklmnopqr1234567890abcdefghijklmnopqr1234567890abcdefghijklmnopqr1234567890abcdefghijklmnopqr1234567890abcdefghijklmnopqr1234567890abcdefghijklmnopqr1234567890abcdefghijklmnopqr1234567890abcdefghijklmnopqr1234567890abcdefghijklmnopqr1234567890

ChromeCast 3rd Generation

  Full standard 1080p resolution Supports all your wireless networks Wi-Fi 802.11ac (2.4GHz/5GHz)   Android 4.2 and higher iOS 9.1 and higher Mac® OS X® 10.9 and higher Windows 7 and higher   https://store.google.com/us/product/chromecast_apps?hl=en-US   Youtube    Chrome  Local file을 열어서 Cast도 가능 Videostream for Google Chromecast 5556 5558  

argument is of length zero

https://stackoverflow.com/questions/27350636/r-argument-is-of-length-zero-in-if-statement “argument is of length zero”  > FALSE == “turnip” [1] FALSE > TRUE == “turnip” [1] FALSE > NA == “turnip” [1] NA > NULL == “turnip” logical(0) As you can see, comparisons to a NULL not only don’t produce a boolean value, they don’t produce a value at Read more…

warning :: Coercing LHS to a list

  df<-iris dtrace <- apply(df, 1,function(x){ tt<-x[3] tt$wid <- x[1] return(tt) }) #dtrace <- ldply(dtrace, rbind)[,-1] result<-rbindlist(dtrace, use.names=TRUE, fill=TRUE) result   df<-iris dtrace <- apply(df, 1,function(x){ tt<-c(x[3],wid=x[4]) return(tt) }) result<-t(dtrace)   left hand side In  tt$wid <- x[1] : Coercing LHS to a list $연산자를 matrix의 subset하기위해 사용하면 안된다. ( Read more…

Scatterplot3d

help참조   #install.packages(“scatterplot3d”) library(“scatterplot3d”) ################################################################# ### Data data(trees) str(trees); head(trees); summary(trees) ################################################################# ### Aesthetics, geometric objects #1. scatterplot3d(x, y=NULL, z=NULL,…) x <- trees$Girth y <- trees$Height z <- trees$Volume scatterplot3d(x,y,z) #2. scatterplot3d() x is Matrix or dataframe scatterplot3d(trees) #3. scatterplot3d() x is formula attach(trees) scatterplot3d(Volume ~ Girth+Height) detach(trees) ### # Read more…