Displaying 14 results from an estimated 14 matches for "40hotmail".
2017 Nov 22
3
Tibble o data.table?
...on este esquema "tidyverse" ("tidytext", "tidyquant", hasta el mismo "sparklyr").
Gracias,
Carlos Ortega
www.qualityexcellence.es<https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qualityexcellence.es&data=02%7C01%7Cj.para.fernandez%40hotmail.com%7C6c89c3a810f24aebef8408d531ec3e03%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636469813071210024&sdata=7xIo1ziqT0P2%2FjCSbXT%2Fsl4WqKElhFhTUOqcny7riR0%3D&reserved=0><https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qualityexcellence.es&data=02%7C01%7Cj.pa...
2017 Nov 22
3
Tibble o data.table?
...on este esquema "tidyverse" ("tidytext", "tidyquant", hasta el mismo "sparklyr").
Gracias,
Carlos Ortega
www.qualityexcellence.es<https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qualityexcellence.es&data=02%7C01%7Cj.para.fernandez%40hotmail.com%7C1ec53787fa774b89b75108d531e7b193%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636469793538852484&sdata=ynjSePt%2B7%2B4hjxRlVetzbh37RmBUCVW8BaBYC0GqY8Y%3D&reserved=0>
El 22 de noviembre de 2017, 10:39, Jesús Para Fernández <j.para.fernandez en hotmail.com<mailto:j.para.fernan...
2017 Nov 16
3
Manera eficiente de añadir el valor anterior por grupo
Buenas
Tengo un Data table de la siguiente manera:
datos<-data.table(grupo=rep(c("a","b"),5),x=c(1:10),y=rnorm(10,2,1))
Lo que quiero es añadir una fila por cada grupo y en esa nueva fila, al valor de la x ponerle el valor anterior de la y
Lo que hago es añadir una nueva fila por grupo, con:
datos[,.SD[1:(.N+1)],by=grupo]
Y para añadir el valor anterior uso la función
2017 Nov 22
2
Tibble o data.table?
Buenas
Os queria preguntar que ventaja le veis a las tibbles frente a los data.table, ya que para mi, quitando el uso de librerias como tidyr o purrr, en el resto prefiero usar data.table. Me parece igual de potente y mucho más rápido, y no le veo las supuestas ventajas, pero quiero conocer vuestra opinion.
Gracias
Jesús
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2009 Mar 27
1
Welcome to the "CentOS" mailing list (Digest mode)
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2010 Dec 01
2
Welcome to the "R-help" mailing list
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2012 Dec 31
2
a problem for metafor package
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2017 Nov 28
5
Búsqueda de palabras en una variable de R
Buenas,
Tengo un vector de 40 palabras (marca) y necesito saber si en una de las
variables del data.frame (datos) se incluye alguna de esas 40 palabras. Si
se incluye alguna de ellas, me gustaría crear una variable dummy siendo 1
que incluye alguna palabra y 0 que no incluye.
¿Qué paquete me recomendáis? ¿Cuál sería el comando a ejecutar?
Gracias!
2008 May 06
1
FW: Welcome to the "CentOS-docs" mailing list
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2010 Dec 01
0
thank you so much
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2005 Nov 04
0
RE: Welcome to the "wine-users" mailing list (Digest mode)
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2013 Apr 21
1
Welcome to the "R-help" mailing list
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2008 Jul 06
0
FW: Problem for me that others come to my page and also bring in a player pleye half of my page
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2012 Apr 29
1
Error in if (nuhat < 2) stop("The degrees of freedom must be greater than or equal to 2") : missing value where TRUE/FALSE needed
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