Displaying 20 results from an estimated 5000 matches similar to: "Score Test Function"
2007 Jun 27
1
how to use chi-square to test correlation question
Hi There,
There are 300 boy students and 100 girl students in a class. One interesting question is whether
boy is smarter than girl or not.
first given the exam with a difficulty level 1, the number of the student who got A is below
31 for boy, 10 for girl.
Then we increase the difficulty level of the exam to level 2, the number of the student who got A is below
32 for boy, 10 for girl.
We
2006 Mar 02
5
Two foreign keys on the same column?
Let''s say I have three hypothetical MySQL tables:
? people, with columns id, gender, and source_id
belongs_to :boys and :girls
? boys, with columns id and name
has_many :people
? girls, with columns id and name
has_many :people
The gender column in people specifies which of the two source tables the
source_id refers to. For example, if we have values:
1, boy, 1
in people,
2007 Dec 02
1
speeding up likelihood computation
R Users:
I am trying to estimate a model of fertility behaviour using birth history data with maximum likelihood. My code works but is extremely slow (because of several for loops and my programming inefficiencies); when I use the genetic algorithm to optimize the likelihood function, it takes several days to complete (on a machine with Intel Core 2 processor [2.66GHz] and 2.99 GB RAM). Computing
2017 Jun 12
3
count number of stop words in R
Hi all,
Is there a way in R to count the number of stop words (English) of a string using tm package?
str="Mhm . Alright . There's um a young boy that's getting a cookie jar . And it he's uh in bad shape because uh the thing is falling over . And in the picture the mother is washing dishes and doesn't see it . And so is the the water is overflowing in the sink . And the
2003 Dec 08
3
stripchart problem
Hello,
I am trying to plot age distribution data for a certain condition that
runs in families. Below is a simplified view of the dataset, i.e. in
this case there are four families, each line corresponding to one
individual with age at diagnosis and sex.
> famdata
family age sex
1 fam1 2.1 f
2 fam1 2.3 f
3 fam1 1.0 m
4 fam2 7.3 f
5 fam2 4.1 f
6 fam2 1.2 f
7
2017 Jun 12
0
count number of stop words in R
You can use regular expressions.
?regex and/or the stringr package are good places to start. Of
course, you have to define "stop words."
Cheers,
Bert
Bert Gunter
"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
On Mon, Jun 12, 2017 at 5:40
2017 Jun 12
0
count number of stop words in R
Thanks for your reply. I know the command
data <- tm_map(data, removeWords, stopwords("english"))
removes English stop words, I don't know how should I count stop words of my string:
str="Mhm . Alright . There's um a young boy that's getting a cookie jar . And it he's uh in bad shape because uh the thing is falling over . And in the picture the mother is
2017 Jun 12
3
count number of stop words in R
define your string as whatever object you want:
data <- "Mhm . Alright . There's um a young boy that's getting a cookie jar . And it he's uh in bad shape because uh the thing is falling over . And in the picture the mother is washing dishes and doesn't see it . And so is the the water is overflowing in the sink . And the dishes might get falled over if you don't fell
2017 Jun 12
0
count number of stop words in R
Defining data as you mentioned in your respond causes the following error:
Error in UseMethod("tm_map", x) :
no applicable method for 'tm_map' applied to an object of class "character"
I can solve this error by using Corpus(VectorSource(my string)) and the using your command but I cannot see the number of stop words in my string!
On Monday, June 12, 2017 8:36
2017 Jun 12
3
count number of stop words in R
You can define stop words as below.
data <- tm_map(data, removeWords, stopwords("english"))
Patrick Casimir, PhD
Health Analytics, Data Science, Big Data Expert & Independent Consultant
C: 954.614.1178
________________________________
From: R-help <r-help-bounces at r-project.org> on behalf of Bert Gunter <bgunter.4567 at gmail.com>
Sent: Monday, June 12, 2017
2000 Aug 30
3
family question
Dear friends. Please see the program below and answer if it does simulate a
population of 1.000.000 families, each with at max 20000 children (typical
in Denmark, you know), constructed such that each family stops having
children when more boys than girls are present ? Equal numbers of boys and
girls are got in the population, according to the simulation, is that obvious ?
ND <- NP <-
2010 Sep 23
0
ergm
Dear colleagues,
I have another question, which, I think cannot be answered easily by the manual. What is the effect of including both nodefactor("Gender") and nodematch("Gender",diff=TRUE)) for the same variable in the model? Judging from the output (please see below), you cant have estimates for both for boys and girls forthe nodematch command, but I thought that the
2011 Mar 16
1
Standardized Pearson residuals (and score tests)
Hi Peter and others,
If it helps, I wrote a small function glm.scoretest() for the statmod
package on CRAN to compute score tests from glm fits. The score test for
adding a covariate, or any set of covariates, can be extracted very neatly
from the standard glm output, although you probably already know that.
Regards
Gordon
---------------------------------------------
Professor Gordon K
2007 Sep 17
1
observe_field and :function
Hi,
I m using the observe_field helper with the :function attribute.
If I do the following everything it works without any issue:
<%= observe_field ''select_gender'', {:function => "(value == ''2'') ?
$(''record_ohrmarke'').value = ''a boy'':
$(''record_ohrmarke'').value = ''a
2012 Mar 06
1
frequency count by row
I feel this is a very easy thing but I've never done it before and it is
getting frustrating.
I have a big data.frame (1445846 rows, 15 col)
that looks like this:
V1 V2 V3 V4 V5
1 home sister brother chair 0
2 cat dog animal 0 0
3 girl boy 0
2001 Mar 17
2
smbclient/mount question
This is driving me up the wall. I've had a basic samba server up for a
couple of years and it was easy to do. Now with a second server I try to
mount the same shares from the new linux box but I can get nothing to
work. I would use NFS between the linux boxes but the support isn't
compiled into my kernel, and I don't want to tackle that beast tonight...
To test I tried the smbclient
2010 Sep 03
1
Help on Select.list
Hi R,
I am using select.list
names=c("Ravi", "Raj","Shubha","Nivriti")
select.list(names) provides a drop down to choose one of the 4 names.
However I would like to know if it is possible to create a
classification something like this
select.list(names) should give
Boys
Ravi
Raj
Girls
Shubha
Nivriti
I should be able to choose
2011 Feb 14
2
Is there a way to force counters to be treated as "unsigned?"
I am acquiring some sampled data that is time-stamped (with a
POSIXct). Some of the data is in the form of "counters" -- that
is, what is interesting isn't value of a given counter at a given
time, but the change in the counter from one sample to a later one.
As the counters are only incremented, they would be perceived to be
monotonically increasing -- ideally. Unfortunately, the
2005 Jul 29
3
Reg. page_sequence_number in the ogg header.
Hi,
I was looking at some of the vorbis-ogg music files using hexedit.
I am a bit confused about this filed "page_sequence_number" that appears
in the header for ogg. From RFC3533 the definition of this field is:
"page_sequence_number: a 4 Byte field containing the sequence
number of the page so the decoder can identify page loss. This
sequence number is increasing
2003 Jul 15
2
divide by zero and CVS version stability
Hello everyone,
I recently stumbled upon an issue in the encoder of the v1.0 SDK. At the end
of each encoding session a divide by zero (D=0) happens in
bark_noise_hybridmp (psy.c:642). This causes a crash on Win9x systems (WinNT
seems to handle this fine by using infinite as the result). My encoding code
is almost identical to the encoder_example, so I'm reasonably sure that this
is not a