Update app.py

app.py

@@ -71,7 +71,7 @@ def plot_pca(n_components, batch_size):
     axes2.axis([-4, 4, -1.5, 1.5])
     axes2.legend(loc="best", shadow=False, scatterpoints=1)
 
-    text = f"PCA runing time : {pca_time:.6f} seconds. Incremental PCA runing time : {ipca_time:.6f} seconds. Mean absolute unsigned error {err*100:.6f}%"
+    text = f"PCA runing time: {pca_time:.6f} seconds. Incremental PCA runing time: {ipca_time:.6f} seconds. Mean absolute unsigned error: {err*100:.6f}%"
         
     return fig1, fig2, text