Find first bigger value

Replies to This Discussion

Permalink Reply by Hyungsoo Kim on March 20, 2017 at 3:40pm

Hi.

Check this. Best.

Permalink Reply by Rasmus Bendtsen on March 20, 2017 at 4:03pm

Thanks a lot.

For some reason the Member index does not return an index. It seems like there is something wrong with the datatype coming out of the List item... If I manually write the value I am searching for in a panel the index is return correctly, but the way it is set up at the moment does not return the index.

Permalink Reply by Hyungsoo Kim on March 20, 2017 at 4:38pm

How about this?

Attachments:

• ItemIndex.gh, 14 KB

Permalink Reply by Rasmus Bendtsen on March 20, 2017 at 4:41pm

Never mind. I solved it.

But thanks again! :)

Permalink Reply by ng5 Alex on March 20, 2017 at 4:26pm

Hello,

this could be a way too

best

alex

Permalink Reply by Joseph Oster on March 20, 2017 at 5:09pm

When you say "the index of the first value in M_Rd which is bigger", I thought you meant index of first item in the list that is bigger?  So for your example, the index would be 1 and the value=70.68?

Or did you mean index of smallest value which is bigger, as Hyungsoo Kim did it?

In other words, while it does affect the index if you reverse the list, does the sequence of the M_Rd list affect the value?

Here is a slightly different arrangement of Hyungsoo Kim's code - same result:

Permalink Reply by Joseph Oster on March 20, 2017 at 5:21pm

This code depends on the sequence of the 'M_Rd' data, returning the index of first item in the list (in sequence!) that is bigger.  Reverse the list and get a different result:

Attachments:

• M_Rd_2017Mar20a.gh, 12 KB

Permalink Reply by Anders Holden Deleuran on March 21, 2017 at 2:07am

Here's a simple solution using GHPython (that might be faster on large data sets, since you can break out of the loop as soon as you get the first value that is is larger than the bending moment):

Attachments:

• 170321_Python_IndexOfFirstLargerValues.gh, 7 KB

Permalink Reply by Joseph Oster on March 21, 2017 at 7:41am

It looks like you interpreted the problem as I did - find the first value in the sequence that is larger rather than the smallest value that is larger.  I hope the OP (Rasmus Bendtsen) will clarify his intention, and perhaps post his solution?

Your Python code initially failed for me when I applied the data I used in previous post.  Appears to be a data type problem as I was able to fix it by running the 'X' value through a 'Num' param:

Attachments:

• M_Rd_2017Mar21a.gh, 15 KB

Permalink Reply by Anders Holden Deleuran on March 21, 2017 at 7:56am

Ah yeah, I think I didn't explicitly set type hints, so the data will be passed as a string when coming from a Panel (just right-click the input parameters and set them to float to fix).