read/write of the binary dataframe data file success

Author: xieguigang

.gitignore

@@ -492,3 +492,4 @@ test/demo/machineLearning/umap/Vae/nmf_deconv.csv
 test/demo/machineLearning/umap/Vae/old/nmf_class.csv
 test/demo/machineLearning/umap/Vae/old/nmf_deconv.csv
 test/unitTest/matrix_test/wine.dat
+test/unitTest/dataframe/wine.dat

test/unitTest/dataframe/binary_data.R

@@ -0,0 +1,9 @@
+data(wine);
+
+print(wine);
+
+writeBin(wine, con = file.path(@dir,"wine.dat"));
+
+wine_read = readBin(file.path(@dir,"wine.dat"), what = "dataframe");
+
+print(wine_read );