When you change the value of a slider, is there a way to change the value of another slider?
Here’s my problem and what I want to do.
- the initial value of each slide I created initially.
- When I change the value of one of the 4 sliders, I want to keep the value I changed, but change the other slider values to match the initial value (weight). (The sum of the values of all sliders is 100.
- (Problem I am having) When I change the value of one slider, it behaves as follows.
*The reason it looks like this is because in my code, when there is a value change, I reassign the sliders to the same columns…
2-2. when I click again, only one slider appears (this is a problem I’m having because I’m not very good with sessions…)
In fact, the organic slider issue and the session issue are probably intertwined, and I want to create a slider that works smoothly across the board.
This is an esoteric problem for me and I would really appreciate any help.
I don’t know if it will help, but I’ll post the code I’m working on as is.
recommend_weights = []
recommend_stock_names = []
if 'recommend_stock_names' not in st.session_state:
st.session_state['recommend_stock_names'] = []
if len(recommend_stocks) > 0:
optimal_weights = rp.get_portfolio_optimal(recommend_stocks)
column_count = 5
print(f"-------------------")
print(f"optimal_weights: {optimal_weights}")
if 'optimal_weights' not in st.session_state:
st.session_state['optimal_weights'] = optimal_weights
if optimal_weights != st.session_state['optimal_weights']:
st.session_state['optimal_weights'] = optimal_weights
st.session_state['guide_weight'] = optimal_weights
#
if 'guide_weight' not in st.session_state:
st.session_state['guide_weight'] = optimal_weights
guide_weight = st.session_state['guide_weight']
# 비중 조절 슬라이더를 생성 UI 로직.
col_weight_reco = st.columns(column_count)
for idx, stock in enumerate(recommend_stocks):
stock_name = option_info['stock_match'][stock]
recommend_stock_names.append(stock_name)
stock_link = f"[{stock_name}](https://rank.newsystock.com/NewsyRank/StockAnalysis/SA_Diagnosis.aspx?StockCode={stock}&Univ=KF-ALL)"
weight_value = guide_weight[idx] if idx < len(guide_weight) else math.floor(1 / len(recommend_stocks) * 10000) / 100
recommend_weight = col_weight_reco[idx % column_count].slider(stock_link, min_value=0.00, max_value=100.00, value=weight_value, step=1.00)
recommend_weights.append(recommend_weight)
if (idx + 1) % column_count == 0:
# 5개 열이 생성되면, 새로운 열 컬럼을 생성합니다.
col_weight_reco = st.columns(column_count)
# st.session_state['recommend_weight'] = recommend_weights
if recommend_weights != guide_weight:
print(f"guide : {guide_weight}")
print(f"recom : {recommend_weights}")
st.session_state['guide_weight'] = recommend_weights
# guide와 recom 다른 인덱스.(
diff_idx = [idx for idx, (g, r) in enumerate(zip(guide_weight, recommend_weights)) if g != r]
print(diff_idx)
# 해당 인덱스 제외하고, 남은 비중 계산.
remain_weight = 100 - sum([recommend_weights[idx] for idx in diff_idx])
origin_sum = sum([optimal_weights[idx] for idx in range(len(recommend_weights)) if idx not in diff_idx])
# 해당 인덱스는 바뀐 비중으로 적용하고, 다른 인덱스들은 optimal_weights 비중에 맞춰 비중 변경.
for idx in range(len(recommend_weights)):
if idx in diff_idx:
pass
else:
recommend_weights[idx] = round(optimal_weights[idx] / origin_sum * remain_weight, 2)
print(f"change : {recommend_weights}, sum : {sum(recommend_weights)}")
change_weight = []
for idx, w in enumerate(recommend_weights):
stock = recommend_stocks[idx]
stock_name = option_info['stock_match'][stock]
stock_link = f"[{stock_name}](https://rank.newsystock.com/NewsyRank/StockAnalysis/SA_Diagnosis.aspx?StockCode={stock}&Univ=KF-ALL)"
recommend_weight = col_weight_reco[idx % column_count].slider(stock_link, min_value=0.00, max_value=100.00, value=w, step=1.00)
change_weight.append(recommend_weight)
recommend_weights = change_weight
st.markdown(sum(recommend_weights))
And I don’t know if it’ll help, but I’m also putting up the page.
genportview: https://genportview.streamlit.app/portfolio-manager2
