A list of useful commands for the ffmpeg command line tool.
Download FFmpeg: https://www.ffmpeg.org/download.html
Full documentation: https://www.ffmpeg.org/ffmpeg.html
| <# | |
| .SYNOPSIS | |
| Converts Mermaid diagram code to SVG with a text-based UI | |
| .DESCRIPTION | |
| This PowerShell script provides a menu-driven interface to convert Mermaid diagram code to SVG files | |
| using either the Mermaid CLI (if installed) or the Mermaid Live Editor API. | |
| .PARAMETER OutputPath | |
| Path to save the SVG file (default: current directory) | |
| .EXAMPLE | |
| .\mermaid_to_svg.ps1 |
A list of useful commands for the ffmpeg command line tool.
Download FFmpeg: https://www.ffmpeg.org/download.html
Full documentation: https://www.ffmpeg.org/ffmpeg.html
| # Set a seed | |
| set.seed(500) | |
| library(MASS) | |
| data <- Boston | |
| # Check that no data is missing | |
| apply(data,2,function(x) sum(is.na(x))) | |
| # Train-test random splitting for linear model |
| # A method for modifying only select off-diagonal items in a matrix | |
| # From "Thierry" and "Ben Bolker" | |
| # At http://stackoverflow.com/a/11759744/479554 | |
| # A sample matrix | |
| size <- 6 | |
| mat <- matrix(seq_len(size ^ 2), ncol = size) | |
| print(mat) | |
| # A companion matrix that indicates how "off" a diagonal is: |
Download the NeverWare's ChromeOS build from http://www.neverware.com/freedownload
Extract the *.bin.zip
Convert it to VDI. vboxmanage convertdd chromiumos_image.bin chromiumos_image.vdi
mv chromiumis_image.vdi C:\t\v\chromeos\
| fread(sprintf("bzcat %s | tr -d '\\000'", filename)) |
| # https://www.facebook.com/groups/632755063474501/?multi_permalinks=1910139775736017¬if_id=1542238311570480¬if_t=group_highlights&ref=notif | |
| t.pdf <- function(t,v){ | |
| y <- GAM((v+1)/2)/sqrt(v*pi*GAM(v/2)^2)*(1+t^2/v)^(-(v+1)/2) | |
| return(y) | |
| } | |
| t.cdf <- function(b,n,t.pdf,v){ | |
| x <- seq(0,b,length=n)[2:(n-1)] | |
| m <- length(x) | |
| odd <- seq(1,m,2) |
| #@ ExampleData4Time2Censor = read_csv(url("https://raw.githubusercontent.com/mkim0710/tidystat/master/data/ExampleData4Time2Censor.csv")) ===== | |
| library(tidyverse) | |
| ExampleData4Time2Censor = read_csv(url("https://raw.githubusercontent.com/mkim0710/tidystat/master/data/ExampleData4Time2Censor.csv")) | |
| ExampleData4Time2Censor %>% dput | |
| ExampleData4Time2Censor %>% str(give.attr = F) #---- | |
| ExampleData4Time2Censor %>% as.tibble # ---- | |
| # > ExampleData4Time2Censor %>% dput | |
| # structure(list(PERSON_ID = 1:20, AGE_GROUP = c(15L, 15L, 15L, | |
| # 15L, 15L, 15L, 15L, 15L, 15L, 15L, 15L, 15L, 15L, 15L, 15L, 15L, |
| #@ ExampleData4defineDate.MDD = read_csv(url("https://raw.githubusercontent.com/mkim0710/tidystat/master/data/ExampleData4defineDate.MDD.csv")) ===== | |
| library(tidyverse) | |
| ExampleData4defineDate.MDD = read_csv(url("https://raw.githubusercontent.com/mkim0710/tidystat/master/data/ExampleData4defineDate.MDD.csv")) | |
| ExampleData4defineDate.MDD %>% dput | |
| ExampleData4defineDate.MDD %>% str(give.attr = F) #---- | |
| ExampleData4defineDate.MDD %>% as.tibble # ---- | |
| # > ExampleData4defineDate.MDD %>% dput | |
| # structure(list(PERSON_ID = 1:20, DTH_YM = structure(c(NA, NA, | |
| # 15399, 15705, 15917, 15583, NA, NA, NA, NA, NA, NA, NA, NA, 16039, |