add nix folder

Author: doyougnu

nix/R.nix

@@ -0,0 +1,34 @@
+{ nixpkgs ? import ./nixpkgs-01-10.nix }:
+let
+  pkgs   = import nixpkgs {};
+  stdenv = pkgs.stdenv;
+in with pkgs; {
+  myProject = stdenv.mkDerivation {
+    name = "Vsat_Data_Analysis";
+    version = "2";
+    src = if pkgs.lib.inNixShell then null else nix;
+
+    buildInputs = with rPackages; [
+      pandoc
+      R
+      ggplot2
+      knitr
+      rmarkdown
+      devtools
+      reshape2
+      yaml
+      optparse
+      tidyr
+      dplyr
+      svglite
+      cowplot
+      latex2exp
+      gridExtra
+      tidyverse
+      forcats
+      Hmisc
+      ggpubr
+      rstatix
+    ];
+  };
+}

nix/nixpkgs-01-10.json

@@ -0,0 +1,10 @@
+{
+  "url": "https://github.com/nixos/nixpkgs.git",
+  "rev": "b006e46b6bd3b177d178d487add9a7c337769dff",
+  "date": "2021-10-01T08:38:39-04:00",
+  "path": "/nix/store/nsn9dgznb6fxmwiz1gadbvs2267jg3d7-nixpkgs",
+  "sha256": "0xnqljjrjjvr1yazy620a7d4sgz576kkwkzfgqz3pl9lydy9l7gg",
+  "fetchSubmodules": false,
+  "deepClone": false,
+  "leaveDotGit": false
+}

nix/nixpkgs-01-10.nix

@@ -0,0 +1,11 @@
+let
+  hostNix = import <nixpkgs> { };
+  nixpkgsPin = hostNix.pkgs.lib.importJSON ./nixpkgs-01-10.json;
+
+   pinnedPkgs = hostNix.pkgs.fetchFromGitHub {
+    owner = "NixOS";
+    repo  = "nixpkgs-channels";
+    inherit (nixpkgsPin) rev sha256;
+  };
+in
+  pinnedPkgs