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




  Install Commandline Tools xcode-select –install Install Homebrew ruby -e “$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)” Check Installation brew doctor Install brew services brew tap homebrew/services Update Brew and Packages if allready installed brew update && brew upgrade Setup Environment sudo nano ~/.bash_profile Add following lines ## # Homebrew ## export PATH=”/usr/local/bin:$PATH” export Read more…


  여권사진 규정 http://www.passport.go.kr/issue/photo.php 준비물 여권사진 1장, 부모신분증, 신청서, 동의서, 수수료 에디터 https://pixlr.com/editor/   배경날리기 Wand Tool 선택하여 Delete  Shift 선택 alt 선택취소 ^+D 선택해제 Erase Tool (배경 흰색)  https://m.blog.naver.com/PostView.nhn?blogId=pge7929&logNo=221224826970&proxyReferer=https%3A%2F%2Fwww.google.com%2F   Marquee tool      저장시  https://m.blog.naver.com/PostView.nhn?blogId=thelineart&logNo=221223831758&proxyReferer=https%3A%2F%2Fwww.google.com%2F http://irenemom.tistory.com/40    

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  

Sparse matrices

  (흔히 넓은 지역에 분포된 정도가) 드문, (밀도가) 희박한 sparse  matrix 희소 행렬 :  행렬 내부의 원소가 거의 0이고  실제 값이 들어간 건 몇 개 안 되는 행렬입니다 In numerical analysis and computer science, a sparse matrix or sparse array is a matrix in which most of the elements are zero. By contrast, if most of Read more…

try catch finally in r

    tryCatch({       data.oac.null <- rbind(data.oac.null, data.oac[[j]][[m-i]])       cat(“sheet”,m-i, “”)       }, error = function(e){cat(“ERROR :”,conditionMessage(e), “\n”)} http://mazamascience.com/WorkingWithData/?p=912 result = tryCatch({     expr }, warning = function(w) {     warning-handler-code }, error = function(e) {     error-handler-code }, finally = {     cleanup-code }  

protect(): protection stack overflow

https://www.researchgate.net/post/error_protect_protection_stack_overflow_in_R‘ > dd %>% dim [1] 12 39319 to change the data from data.frame to matrix form. ========================================================== You probably have to set –max-ppsize See http://stat.ethz.ch/R-manual/R-devel/library/base/html/Memory.html You’ll also find some discussions about this on StackOverflow. See http://stackoverflow.com/questions/28728774/how-to-set-max-ppsize-in-r for instance   ================================ ‘memory.limit’ function recommended by Maurizio may work for some users, but it is Read more…


equivalent to transpose(strsplit(…))     > strsplit(“A text I want to display with spaces”, NULL) [[1]] [1] “A” ” ” “t” “e” “x” “t” ” ” “I” ” ” “w” “a” “n” “t” ” ” “t” “o” ” ” “d” “i” “s” “p” “l” “a” “y” ” ” “w” “i” “t” Read more…


  행렬의 기본 Linear  Algebra를 통해 해를 구할때 관점                             문제를 보는 관점 Row 방향:                                  직선/평면..의 방정식으로 (dot product, 내적) Column방향:      벡터들의 Read more…