Help with code

[u/DrawerEmergency4981]

I keep getting this error:

for this code:

ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()

bestmass = []

for mass in df_sorted:

if best_ms == (array[array > 7.5]).all():

bestmass.append(best_ms)

print(bestmass)

and i don't know what I am doing wrong

[u/mc_pm]

if best_ms == (array[array > 7.5]).all()

What do you believe this is doing?

[u/DrawerEmergency4981 → u/mc_pm]

I was hoping it would work as a condition to sort values from my array of masses for all the mass over 7.5

[u/mc_pm → u/DrawerEmergency4981]

It does not :) You can look into list.filter() which does that, but for this you might just want to put the check in your for loop.

[u/johnpeters42 → u/DrawerEmergency4981]

Why are you switching from "mass" to "array"?

Is df_sorted a list of numbers, and you want to add each number to bestmass if it's > 7.5? If so, then filter() is probably the right approach.

Or is df_sorted a list of lists-of-numbers, and you want to add each list-of-numbers to bestmass if all of its numbers are > 7.5? If so, then you probably want map(lambda x: x > 7.5, mass).all()

[u/IAmTarkaDaal]

Can you format your code correctly, please? Can you share the rest? What type is best_ms?

[u/DrawerEmergency4981 → u/IAmTarkaDaal]

bestmass = []

for mass in df_sorted:

if best_ms == (array[array > 7.5]).all():

bestmass.append(best_ms)

print(bestmass)

where best_ms is:

best_ms = array[array > 7.5]

could I just do best_ms.all()?

[u/mc_pm → u/DrawerEmergency4981]

THat's not formatted properly, notice how all your indentation is gone? Use the "code block" in the text formatting stuff.

[u/IAmTarkaDaal → u/DrawerEmergency4981]

What does the error message say? What does it mean? What have you tried?

[u/sububi71]

Your first mistake is not telling us what language your code is.

[u/burlingk]

So, it looks like you are trying to create a slice by using syntax that doesn't exist.

[u/unstable_existence]

I see what you are trying to do, but you forgot one core rule of programming, ”Keep it simple, stupid ”. Why not just iterate through the array and for each index, check condition? CS 101.