[R] plotting the regression coefficients

PIKAL Petr
Thu, 08 Feb 2018 10:29:16 -0000

Hi
I copied your values to R, here it is

> dput(temp)

temp <- structure(list(par1 = structure(1:4, .Label = c("x1",
"x2", "x3",
"x4"), class = "factor"), y1 = c(-0.19, 0.45, -0.09, -0.16),
    y2 = c(0.4, -0.75, 0.14, -0.01), y3 = c(-0.06, -8.67, 1.42,
    2.21), y4 = c(0.13, -0.46, 0.06, 0.06)), .Names = c("par1",
"y1", "y2", "y3", "y4"), class =
"data.frame", row.names = c(NA,
-4L))

For plotting it need to be reshaped

library(reshape2)
library(ggplot2)

temp <- melt(temp)
p <- ggplot(temp, aes(x=par1, y=variable, size=abs(value),
colour=factor(sign(value))))
p+geom_point()

Is this what you wanted?

Cheers
Petr
And preferably do not post in HTML, the email content could be scrambled.

From: greg holly [mailto:mak.hholly at gmail.com]
Sent: Thursday, February 8, 2018 9:23 AM
To: PIKAL Petr <petr.pikal at precheza.cz>
Cc: r-help mailing list <r-help at r-project.org>
Subject: Re: [R] plotting the regression coefficients

Hi Petr;

Thanks for your reply. It is much appreciated. A small example is given below
for 4 independent and 4 dependent variables only. The values given are
regression coefficients.I have looked ggplot documents before writing to you.
Unfortunately, I could not figure out as my experience in ggplot is ignorable

Regards.
Greg

y1 y2 y3 y4
x1 -0.19 0.40 -0.06 0.13
x2 0.45 -0.75 -8.67 -0.46
x3 -0.09 0.14 1.42 0.06
x4 -0.16 -0.01 2.21 0.06


On Thu, Feb 8, 2018 at 10:19 AM, PIKAL Petr <petr.pikal at
precheza.cz<mailto:petr.pikal at precheza.cz>> wrote:
Hi

Example, example, example - preferably working.

Wild guess - did you try ggplot?

Cheers
Petr


> -----Original Message-----
> From: R-help [mailto:r-help-bounces at
r-project.org<mailto:r-help-bounces at r-project.org>] On Behalf Of greg
holly
> Sent: Thursday, February 8, 2018 8:14 AM
> To: r-help mailing list <r-help at r-project.org<mailto:r-help at
r-project.org>>
> Subject: [R] plotting the regression coefficients
>
> Hi Dear all;
>
> I would like to create a plot for regression coefficients with each
independent
> variable (x) along the side and the phenotypes (y) across the top (as given
> below). For each data point, direction and magnitude of effect could be
color
> and significance could be the size of the circle? Is this possible?
>
>
> I would greatly be appreciated your help.
>
> Thanks,
>
> Greg
>
>
>
>   y1 y2 y3 y4 y5 y6
> x1
> x2
> x3
> x4
> x5
> x6
> x7
> x8
> x9
> x10
> x11
> x12
> x13
> x14
> x15
> x16
> x17
> .
> .
>
> [[alternative HTML version deleted]]
>
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