selection of items in a Marix

[ptc-5031132]

Hello everybody,

I need some help to select sevral lign in a matrix using a logical test and then create a vector which wwould summarize all selected items.

To be more accurate, my problem is to select the right "spring" cosidering given deflexion and maximum reaction load within this loading configuration. I already creat a fonction which calculat the reaction load for a given deflexion and spring model ( equ_paulstra_reactionload("matrix of the approximated polynomial coeficient which give reaction load in function of the deflexion","deflexion","ligne of the considered model" ). Then I would create a fonction which test each spring and put them in a vector using there reference.

I join my work done so far.

Thanks a lot for your elp,

regards,

Mathieu STAUCH

[MikeArmstrong]

You haven't defined Reaction_Spring.

Mike

[ptc-5031132]

My mistake,

Reaction_Spring is defined at the beginnig as max_spring_reaction. (I modified it but Im not able to send it on my response, sorry)

Mat

[MikeArmstrong · Accepted solution]

Have a look if the attached is of any help.

I have added units to max_spring_reaction - you might want to change them

Mike

[ptc-5031132]

Thak you very much!

one last think, could it be possible to simply remove all zero from that vector and then obtain a clear vector which summarize the possible spring?

Thanks a lot one more time,

Mat

[Werner_E]

Would the attached file help?

Only values which pass the condition are collected in the output vector. With your test data there is no difference seen as all values pass.

[MikeArmstrong]

As Werner has shown, just remove the zero otherwise statement.

Mike

[Werner_E]

Mike Armstrong wrote:

As Werner has shown, just remove the zero otherwise statement.

Mike

Just removing the otherwise statement would still put the zeros in the resulting vector.

[MikeArmstrong]

Oh, you also snuck the rows(P) feature in. I must pay more attention

Mike

[Fred_Kohlhepp]

cleaned up two programming errors.

[MikeArmstrong]

Nothing attached Fred.

Mike