R language drawing parameters (R language plot drawing)

Hello everyone , I meet you again , I'm your friend, Quan Jun .

The experiment has been busy in the past month , I haven't written anything for a long time , I'm going to give you today amina drawing , So I learned a little R Basic drawing of language .ide

1.plot Function function

plot(x,y,xlim=c(0,100),ylim=c(0.4,1), type=”o”,lwd=2,col=2,pch=24,cex=1.5, yaxs=”i”,xaxs=”i”, xlab=”Sample Ration(%)”,ylab=”Accuracy”) Study

x,y : To draw x Axis contents and y Axis content spa

xlim,ylim: x Axis and y The scope of the shaft orm

type: Represents the shape of the graph , Yes. 、 Line 、 Dotted line 、 Ladder line, etc .htm

lwd: The width of the line blog

col: Color get

pch: The shape of the dot it

cex: Size of points

yaxs,xaxa: plot By default, a part of the coordinate space will be reserved when drawing , Set to “i” after , You can remove the reserved space

xlab,ylab:x Axis and y The name of the shaft

2. lines function

When you want to draw multiple lines in a graph , Can use this function

lines(LPPLPP~LPPx,col = “blue”,type = “o”,lwd = 2,pch=5)

3.grid Add a grid to the graph

grid(nx=NA,ny=6,lwd=2)

nx,ny： respectively x and y Dotted line of direction , The duty of NA when , Not split in the corresponding direction ,ny=6 It means that you will y The axis is equidistant divided into 6 paragraph

4.abline

Add a line

abline(h=0.85,col=”black”,lty=1,lwd=2)

h: y Height in the axial direction

v: x Position of the shaft

5.legend

Add legend

legend(“bottomright”,legend=c(“AC Accuracy rate ”,”MI Normalized mutual information ”),col=c(“blue”,”red”),pch=c(5,24),lty=1)

“bottomright” ： The location of the legend

legend: Content

lty: The type of wire

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