Search for two separate values in column

ROOT
1

Hi,

I’m struggling to find a function that I can use to search for two separate values in the same column e.g. If I want to define a second column that counts the number of times in an event t_pdg == 12 AND t_pdg==11 is also in the column how would I go about this. So far I’ve been using
df=df.Define(" both_true","( t_pdg[t_pdg ==12].size() && t_pdg[t_pdg==11].size()"). The logic on this though seems slightly off

Any help would be very appreciated!

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2

This "t_pdg[t_pdg ==12].size() && t_pdg[t_pdg==11].size()" looks wrong to me…
Is this question related to your precedent topic? Can you wait until someone looks at it first?

3

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