I have the following problem: I have a DataFrame df which looks like this: eqpid recpid queuetime trackintime trackouttime 3723
react-native-textinput
object-type
minimum
lisp
outlook-filter
simultaneous
public-html
nethereum
webmock
stdvector
installation-package
edititemtemplate
magento
stripping
huge-pages
qjsonobject
scala-2
encoding
linkedin-api
primeng-dialog
excel-2019
scala-ide
memcpy
complexheatmap
icingaweb
walmart-api
ihp
domain-forwarding
ply
jsonelement