Displaying 17 results from an estimated 17 matches for "mazdas".
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mandas
2007 Jun 05
3
read table
Hi,
I'm a novice of R.
I want to read the following table into R:
names mpg cyl disp hp drat
Mazda RX4 21.0 6 160.0 110 3.90
Mazda RX4 Wag 21.0 6 160.0 110 3.90
The command I used is:
> test <- read.table(file.choose(),header=T)
The result is:
Error in read.table(file.choose(), header = T) :
more columns than column names
2006 Jul 18
5
SQL query question
Hello,
I know it''s off-topic. But I''m sure you are using SQL and can help me ;)
I''ve a table CARS and a table KEYS and a LOCKS table.
CARS
id|name
1|audi
2|ford
3|mazda
4|porsche
...
KEYS
id|car_id|lock_id
1|1|1
2|2|1
3|2|2
4|3|1
5|3|2
6|4|1
7|4|2
8|4|3
...
LOCKS
id|name
1|main
2|spare
3|engine
...
A car can have many keys. Keys are for different locks.
How can I
2013 Apr 12
3
Why copying columns of a data.frame becomes numeric?
Dear list,
I want the 1st, 2nd, 5th, and 6th columns of mtcars. After copying them,
the columns become numeric class rather than data frame.
But, when I copy rows, they data frame retains its class. Why is this? I
don't see why copying rows vs columns is so different.
> class(mtcars)
[1] "data.frame"
> head(mtcars)
mpg cyl disp hp drat wt qsec vs
2017 Jun 01
3
odfWeave - A loop of the "same" data
Before I go and do this another way - can I check if anyone has a way of looping through data in odfWeave (or possibly sweave) to do a repeating analysis on subsets of data?
For simplicity lets use mtcars dataset in R to explain. Dataset looks like this:
> mtcars
mpg cyl disp hp drat wt ...
Mazda RX4 21.0 6 160 110 3.90 2.62 ...
Mazda RX4 Wag 21.0 6 160 110 3.90
2010 Dec 09
1
Tiff compression bug
Is there a bug in tiff compression output in Mac version?
My program is correct when I run on windows version; However, in Mac, the
compression fail~
[[alternative HTML version deleted]]
2017 Jun 01
0
odfWeave - A loop of the "same" data
On Thu, 1 Jun 2017, POLWART, Calum (COUNTY DURHAM AND DARLINGTON NHS FOUNDATION TRUST) via R-help wrote:
> Before I go and do this another way - can I check if anyone has a way of
> looping through data in odfWeave (or possibly sweave) to do a repeating
> analysis on subsets of data?
>
> For simplicity lets use mtcars dataset in R to explain. Dataset looks like this:
>
2003 Aug 07
1
graph for selected lines in stars()
Dear listers,
The following command (derived from the example in the ?stars help page)
works :
data(mtcars)
stars(mtcars[, 1:7])
But the following gives an error:
stars(mtcars[1, 1:7])
Error in s.y[i, ] : incorrect number of dimensions
I was expecting to have the star graph for the first line (Mazda Rx4)
The following give an incorrect graph for the first two cars :
stars(mtcars[1:2, 1:7])
2013 Apr 16
2
efficiently diff two data frames
Dear all,
What is the quickest and most efficient way to diff two data frames,
so as to obtain a vector of indices (or logical) for rows/columns that
differ in the two data frames? For example,
> Xe <- head(mtcars)
> Xf <- head(mtcars)
> Xf[2:4,3:5] <- 55
> all.equal(Xe, Xf)
[1] "Component 3: Mean relative difference: 0.6863118"
[2] "Component 4: Mean relative
2018 May 10
4
the first name of the first column
Dear all;
I need to run heatmap. Because my first column in my data is alphanumeric,
I can not run as.matrix(scale(my_data)). So I need to make my data readable
as in data(mtcars). In *mtcars *data the first column is alphanumeric and
has no name.
Thanks,
Greg
[[alternative HTML version deleted]]
2009 Apr 27
0
VIF's in R using BIGLM
Dear R-help
This is a follow-up to my previous post here:
http://groups.google.com/group/r-help-archive/browse_thread/thread/d9b6f87ce06a9fb7/e9be30a4688f239c?lnk=gst&q=dobomode#e9be30a4688f239c
I am working on developing an open-source automated system for running
batch-regressions on very large datasets. In my previous post, I posed
the question of obtaining VIF's from the output of
2007 Nov 12
0
3 commits - libswfdec/swfdec_player.c test/trace
libswfdec/swfdec_player.c | 18 +--
test/trace/loadvars-decode-5.swf |binary
test/trace/loadvars-decode-5.swf.trace | 182 +++++++++++++++++++++++++++++++++
test/trace/loadvars-decode-6.swf |binary
test/trace/loadvars-decode-6.swf.trace | 182 +++++++++++++++++++++++++++++++++
test/trace/loadvars-decode-7.swf |binary
test/trace/loadvars-decode-7.swf.trace |
2018 Aug 26
0
proposed patch to /src/library/datasets/man/mtcars.Rd
Mara Averick noticed some oddities in the mtcars data set:
https://twitter.com/dataandme/status/1033341784959709184
I propose the following patch. While anyone with access to JSTOR could
dig in and find this information themselves, it would seem a friendly
gesture to include it ...
cheers
Ben Bolker
===================================================================
--- mtcars.Rd
2006 Apr 12
0
fixtures advanced question
Hello,
in my database i have tables models,marques,cars. I wrote fixtures for
models f1:
id: 1
marque_id: 1
name: 100 NX
f2:
id: 2
marque_id: 1
name: 200 SX
f3:
id: 3
marque_id: 1
name: Almera
f4:
id: 4
marque_id: 1
name: Patrol
f5:
id: 5
marque_id: 1
name: Primera
f6:
id: 6
marque_id: 2
name: CLK
f7:
id: 7
marque_id: 2
name: CLS
f8:
id: 8
marque_id:
2012 Dec 18
0
Clustering newbie question
Hello,
Please advice on encoding data for the following clustering problem.
I have a dataset with car usage info. Dataset has the following fields:
1. Car model (Toyoya Celica, BMW, Nissan X-Trail, Mazda Cosmo, etc.)
2. Year built
3. Country where the car runs
4. Distance run by car before major repairs
Important: The above dataset is sparse.
In most cases "Distance" is not known
2003 Jan 13
6
Fw: Shorewall on a file/webserver/router Help
Thankyou the information provided was informative to say the most.
Quote "Shorewall Masqurading made simple ?"
I will not comment any futher about my simple question as I see nothing but
backtracking information.
Maybe all the usless information is somthing to do with the below,
Linux how it works!
First you must remember that 98% of linux programmers are kids or they have
been
2003 Jan 12
10
Shorewall on a file/webserver/router Help
Hi,
I have a install of shorewall I have 2 interfaces(I think)
ppp0[connection device] and eth0 [LAN device],
I want to allow all traffic from the the internet in or aleast port 80 and
CVS and webmin and mail and everything normal to the main machine with
shorewall on it.
I changed to policy file but it just gave me errors as to double interfaces.
I also what still to alow connection sharing
2006 May 02
96
[ADV] Second Edition of Agile Web Development with Rails
ANNOUNCING AGILE WEB DEVELOPMENT WITH RAILS, SECOND EDITION
===========================================================
http://www.pragmaticprogrammer.com/titles/rails2/
Rails has changed a lot since we announced the first edition of the
book a year ago. DHH says that the 1.1 release "boasts more than 500
fixes, tweaks, and features from more than 100 contributors." Who
are we to