r - Contingency table with name of factors instead of counts -

-

i have dataframe 3 columns. first has names of categories, second (q2) , third (q3) columns contain other factors. es:

q1 q2 q3  w  y g  x  x f  y  z

i'm using

t1 <- xtabs(~q2+q3, data=db)

to create contingency table , know how many combo categories there are.

how can obtain in itersection cells names of factors that're in column q1?

     x y z    w 0 1 0    x 1 0 0    y 0 0 1

in example, instead of 1, want a, g or f.

an option assign q1 t1 using q2 , q3 indices.

> dn <- lapply(db[2:3], levels) > t1 <- array(na, lengths(dn), dn) > t1[cbind(db$q2, db$q3)] <- levels(db$q1)[db$q1] > t1    q3 q2  x   y   z     w na  "a" na    x "g" na  na    y na  na  "f"

Comments

Post a Comment

Popular posts from this blog

sequelize.js - Sequelize group by with association includes id -

-
so when requesting group sequelize follows: return models.workingcalendar .findall({ attributes: [ 'workingcalendar.periodid', 'workingcalendar.date', 'period.name' ], include: [ { model: models.period, attributes: [] } ], where: { getsudoid: currentgetsudo.id, unitplantid: unitplantid }, group: ['workingcalendar.periodid', 'workingcalendar.date', 'period.name'], }); sequelize run query: select [workingcalendar].[id], [workingcalendar].[periodid], [workingcalendar].[date], [period].[name] [workingcalendars] [workingcalendar] left outer join [periods] [period] on [wor...
Read more

java - Android raising EPERM (Operation not permitted) when attempting to send UDP packet after network connection -

-
when responding supplicant_state_changed_action broadcast , attempting send udp packet, exception: java.net.socketexception: sendto failed: eperm (operation not permitted) @ libcore.io.iobridge.maybethrowaftersendto(iobridge.java:542) @ libcore.io.iobridge.sendto(iobridge.java:511) @ java.net.plaindatagramsocketimpl.send(plaindatagramsocketimpl.java:184) @ java.net.datagramsocket.send(datagramsocket.java:305) @ com.mycompany.app.serviceclass.discover(serviceclass.java:355)at com.mycompany.app.serviceclass.access$600(serviceclass.java:39) @ com.mycompany.app.serviceclass$statemachine.run(serviceclass.java:242) @ java.lang.thread.run(thread.java:818) caused by: android.system.errnoexception: sendto failed: eperm (operation not permitted) @ libcore.io.posix.sendtobytes(native method) @ libcore.io.posix.sendto(posix.java:211) @ libcore.io.blockguardos.sendto(blockguardos.java:278) @ libcore.io.iobridge.sendto(iobridge.java:509) @ java.net.plaindat...
Read more

c++ - Migration from QScriptEngine to QJSEngine -

-
i'm migrating qscriptengine code on qjsengine. now, have: class pars { public: static qscriptvalue printmainlog(qscriptcontext* c, qscriptengine* e); }; qscriptvalue pars::printmainlog(qscriptcontext* c, qscriptengine* e) { //some actions return e->globalobject().property(""); } ... qscriptengine engine; ... engine.globalobject().setproperty("printlog",engine.newfunction(pars::printmainlog)); so, user can put printlog("what ever"); in application in , example, qlineedit , function pars::printmainlog evalute. is there way qjsengine? so, user put same printlog("what ever");? way find here , user should put logger.printlog("what ever"); logger class inherited qobject printlog slot.
Read more