update readme

README.md

@@ -4,7 +4,7 @@ emoji: 🖼️
 colorFrom: blue
 colorTo: purple
 sdk: streamlit
-sdk_version: 1.23.1
+sdk_version: 1.19.0
 python_version: 3.9.13
 app_file: app.py
 pinned: false

test_altair.py

@@ -1,25 +0,0 @@
-import streamlit as st
-import altair as alt
-import pandas as pd
-
-# Generate random data for the chart
-data = pd.DataFrame({
-    'Category': ['A', 'B', 'C', 'D', 'E'],
-    'Value': [0.2, 0.5, 0.8, 1.2, 1.5]
-})
-
-# Define the color scale for the bars
-color_scale = alt.Scale(
-    domain=[0, 1],  # Values between 0 and 1 will be blue
-    range=['steelblue', 'lightgray']
-)
-
-# Create the bar chart using Altair
-chart = alt.Chart(data).mark_bar().encode(
-    x='Category',
-    y='Value',
-    color=alt.Color('Value', scale=color_scale)
-)
-
-# Render the chart using Streamlit
-st.altair_chart(chart, use_container_width=True)