Transpose in Scala

Question

I am new to Scala. I am currently working on a jupyter notebook Apache Toree - Scala. I have the following:

dt_analysis	metric_name	mean_value
2021-08-13	FID	337.07522229312184
2021-08-13	CLS	0.4778479558664849
2021-08-13	LCP	27853.39253624655
2021-08-14	LCP	1503.4752384264077
2021-08-14	CLS	0.4933521946102963
2021-08-14	FID	119.07927683323628
2021-08-15	LCP	1654.1969758061045

which is a "'void' class".

I wish to tranpose it and have metric_name as columns. Note: there is one value per metric per dt_analysis.