I have a pretty long code (calculating pore pressure and frac gradient for oil and gas) and it has a variable bank of different pressures of certain rock formations.
I want the user to be able to input a pressure on the app that re-runs my code using the user input instead of the standard variable in the back-end code.
Any ideas? I chose not to post the code since it’s +800 lines…
Hi @jacobrsmith37, welcome to the Streamlit community!
All of the Streamlit widgets take a default value, so depending on the scale/granularity of what that constant can be, you could do something like:
porepress = st.slider("Choose pore pressure to simulation", 0, 100, 5)
# way later in code
val = pressure(porepress)
That way, on first load, the user would get the default value (in this toy example,
5), and then they can choose whatever value is appropriate for their scenario.
Thanks a lot for your reply! I actually got it running with session_state (which I am a novice at). Here is how I coded 4 user input variables that would override my default pressure variables.
with col1.expander("Low Side Pore Pressure Inputs (PSI)"):
if 'Low Side Inyan Kara' not in st.session_state:
LS_inyan_kara = st.number_input('Low Side Inyan Kara', value = 3200)
if 'Low Side Amsden' not in st.session_state:
LS_20_high_amsden = st.number_input('Low Side Amsden', value = 0)
if 'Low Side Frobisher-Alida' not in st.session_state:
LS_300_low_rival = st.number_input('Low Side Frobisher-Alida', value = 0)
if 'Low Side Upper Bakken' not in st.session_state:
LS_upper_bakken = st.number_input('Low Side Upper Bakken', value = 8400)
@randyzwitch here is my next issue which i’ve spent 2 days on…
I have a simple dataframe based on a small csv that I import to Streamlit with the drag and drop function. I’m utilizing AgGrid to make the dataframe editable. The only problem is that I cannot get st.session_state to save the updated dataframe when i refresh or navigate to another page in the app. Any suggestions? To display the editable dataframe is on line of code as follows:
j = AgGrid(df_topset, editable = True)
My dataframe from the csv is df_topset
@randyzwitch any ideas? I’ve been stuck on this for a long time!