I have the following problem: I have a DataFrame df which looks like this: eqpid recpid queuetime trackintime trackouttime 3723
writetofile
sendgrid-api-v2
django-constraints
kube-prometheus-stack
non-volatile
vspackage
gregorian-calendar
steam-web-api
solidworksapi
roi
eager
install4j
epublib
ktrain
mapbox-navigation
hal-json
unity3d-2dtools
wso2-stratos
porting
content-delivery-network
objectscript
jboss-wildfly-11
cyclejs
ilm
yeoman
modx-template-varaiables
levenberg-marquardt
text-align
initialization-order
kendonumerictextbox