### Install CytoSignal & VeloCytoSignal

Source: https://github.com/welch-lab/cytosignal/blob/master/README.md

Install the CytoSignal & VeloCytoSignal package from GitHub using devtools. Ensure devtools is installed first.

```R
if (!requireNamespace("devtools", quietly = TRUE))
    install.packages("devtools")
devtools::install_github("welch-lab/cytosignal")
```

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