CODEWITHSUNDEEP
rif-statementbinary-data
skinwizard
skinwizard

Reputation: 11

I am trying to create a binary variable in R on two conditions

I created two variables "score_diff" and "seed_diff", I would like to create a binary variable which is defined by if the score_diff is <0 and if the seed_diff is greater than 5.

df$score_diff <- df$score1- df$score2
df$seed_diff <- df$seed1- df$seed2

I tried this, however, it didn't work, I am new to this so bear with me:

df$upset <- ifelse(df$score_diff<0 & df$seed_diff>5)

Upvotes: 1

Views: 980

Answers (2)

Stefano Barbi
Stefano Barbi

Reputation: 3184

As others have explained, your code only specifies the "test" (df$score_diff < 0 & df$seed_diff > 5) part of an ifelse statement. If you want to convert it to an integer with values 0,1 you can use as.integer.

df$upset <- as.integer(df$score_diff < 0 & df$seed_diff > 5)

Upvotes: 0

Bloxx
Bloxx

Reputation: 1560

Your code doesn't work, cos you only set the condition, and not what should happen in case the condition is TRUE or FALSE. So, the second argument 1, says that in case the condition is TRUE, the value is 1; and the third argument specifies what should happen if the condition is FALSE. Simplified: ifelse(test, yes, no).

df$upset <- ifelse(df$score_diff<0 & df$seed_diff>5, 1, 0)

Upvotes: 1

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