[R] [R studio] Plotting of line chart for each columns at 1 page

Jim Lemon drjimlemon @ending from gm@il@com
Wed Nov 21 02:47:07 CET 2018


Hi Subhamitra,

1. Here I manufacture some data so that the example is "reproducible", that
is anyone can run the code and get the same output that I do. Yes,
veh1...veh38 are the names of the variables.

2. Here I join the 38 variables I created into a data frame, which I think
is the input for your plotting routine. This names of the columns of the
data frame become the names of the variables.

When you say that you want the column names as the "header" (title) of each
plot, I think if you change the plotting loop to this:

pdf("mpg.pdf",width=30,height=12)
par(mfrow=c(4,10))
for(i in 1:38)
 plot(seq(1,500,length.out=10),mpg[,i],type="l",xlab="Distance",
  ylab="MPG",main=names(mpg)[i])
dev.off()

you will get what you requested. Remember that I have done this in base
graphics, not ggplot.

Jim

On Wed, Nov 21, 2018 at 12:37 PM Subhamitra Patra <
subhamitra.patra using gmail.com> wrote:

> Hello Sir,
>
> Thanks, I'll check them out.
>
> But, I am not understanding 2 points of your suggestion.
>
> 1. In the line,* "*for(i in 1:38) assign(paste0("veh",i),rep(sam
> ple(10:35,1),10)+runif(10,-4,*4))", *what veh, rep(sample(10:35,1),10)
> +runif(10,-4,4)) indicate? Here veh indicates columns right?
> *2. In the
> line, mpg<-data.frame(veh1,veh2,veh3,veh4,veh5,veh6,veh7,veh8,veh9,veh10,*
> * veh11,veh12,veh13,veh14,**veh15,veh16,veh17,veh18,veh19,**veh20,*
> * veh21,veh22,veh23,veh24,**veh25,veh26,veh27,veh28,veh29,**veh30,*
> * veh31,veh32,veh33,veh34,**veh35,veh36,veh37,veh38)  ** , *veh[i]
> indicates column sequence, right? I need to give column names as the header
> of their respective graphs. Please suggest me How to add this?
>
>
> I am very new to R and therefore asking you these queries which might be
> simple for you.
>
> I expect positive help from you.
>
> Thanks for your kind help.
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>
> On Wed, Nov 21, 2018 at 4:38 AM Jim Lemon <drjimlemon using gmail.com> wrote:
>
>> Hi Subhamitra,
>> As Bert noted, you are mixing base and grid graphics. Here is a simple
>> way to get a plot like what you described. It will probably take more
>> work to find what you actually do want and discover how to get it.
>>
>> for(i in 1:38)
>> assign(paste0("veh",i),rep(sample(10:35,1),10)+runif(10,-4,4))
>> mpg<-data.frame(veh1,veh2,veh3,veh4,veh5,veh6,veh7,veh8,veh9,veh10,
>>  veh11,veh12,veh13,veh14,veh15,veh16,veh17,veh18,veh19,veh20,
>>  veh21,veh22,veh23,veh24,veh25,veh26,veh27,veh28,veh29,veh30,
>>  veh31,veh32,veh33,veh34,veh35,veh36,veh37,veh38)
>> pdf("mpg.pdf",width=30,height=12)
>> par(mfrow=c(4,10))
>> for(i in 1:38)
>>  plot(seq(1,500,length.out=10),mpg[,i],type="l",xlab="Distance",
>>   ylab=names(mpg)[i],main="MPG by distance")
>> dev.off()
>>
>> Jim
>>
>> On Wed, Nov 21, 2018 at 5:19 AM Subhamitra Patra
>> <subhamitra.patra using gmail.com> wrote:
>> >
>> > Dear R users,
>> >
>> > I have one excel file with 5 sheets. The no. of columns vary for each
>> > sheet. The 1st sheet consists of 38 columns. So, I want to plot 38
>> separate
>> > line charts and arrange them in par(mfrow = c(4, 10)) order. Please
>> suggest
>> > me how to do this. I have tried with the following code by running a
>> loop
>> > inside of a sheet, but it is not working. Further, I want to run loops
>> for
>> > each sheet.
>> >
>> > par(mfrow = c(4, 10))
>> > loop.vector <- 1:38
>> > for (i in loop.vector)
>> > x <- JJ[,i]
>> > library(ggplot2)
>> >   library(cowplot)
>> >   plot.mpg <- ggplot(mpg, aes(x,
>> >                               main = paste ("country", i),
>> >                               xlab = "Scores",
>> >                               xlim = c(1,500)
>> >                               y = colnames[i,], colour = factor(cyl))) +
>> >   geom_line(size=2.5)
>> > save_plot("mpg.png", plot.mpg,
>> >           base_aspect_ratio = 1.3)
>> >
>> > I want to give my X axis name as scores of (1,500) and Y axis as the
>> > particular column names for all graphs.
>> >
>> > Please suggest.
>> >
>> > Thanks in advance.
>> >
>> > --
>> > *Best Regards,*
>> > *Subhamitra Patra*
>> > *Phd. Research Scholar*
>> > *Department of Humanities and Social Sciences*
>> > *Indian Institute of Technology, Kharagpur*
>> > *INDIA*
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> > [image: Mailtrack]
>> > <
>> https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&
>> >
>> > Sender
>> > notified by
>> > Mailtrack
>> > <
>> https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&
>> >
>> > 11/20/18,
>> > 11:49:42 PM
>> >
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>
>
> --
> *Best Regards,*
> *Subhamitra Patra*
> *Phd. Research Scholar*
> *Department of Humanities and Social Sciences*
> *Indian Institute of Technology, Kharagpur*
> *INDIA*
>

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