TA的每日心情 | 怒 2019-11-20 15:22 |
|---|
签到天数: 2 天 [LV.1]初来乍到
|
EDA365欢迎您登录!
您需要 登录 才可以下载或查看,没有帐号?注册
x
. t4 e/ s, f7 k$ A3 ?- z" t) a% Q7 U& S" p
* P6 K) a5 [- q) Q' G& P
9 Y1 X! y, G* R; k- O
: m% X3 y$ W; {. \% v4 K$ r排列图的绘制
# A- a/ _- r5 @' o0 _绘图函数pareto
# o7 f% C) q$ I8 V |
4 g9 q$ p3 a# u/ {) l3 z& a0 a2 V用pareto绘图程序:
. }& \% p2 h- K' B1 e' J( h3 w* z6 ? |% V* q4 F+ m( }" N
排列图
+ Y: G& T. ]2 u( B5 z3 ]
# k" S' S; V$ eY=[1 2 5 3.3 0.9 5.2];
' v k0 o& T- |. C4 b0 S* Q; N: ]
names={'一队' '二队' '三队' '四队' '五队' '六队'};
$ b7 L2 Q. R, i; W" A2 U& w! W, L) H6 [; E
X=[1 2 3 4 5 6];
6 A- l9 i$ `0 n
! M+ |7 {* b/ M9 ~) y4 H' @subplot(211)- L5 U( _7 `" X# ^
( f% j3 Y. ~) e& C" h
pareto(Y,names)%x轴的下标标识为names' b4 K0 v0 ^9 N
3 h1 y, b# g1 F% I9 ?$ T
title('排列图示例一')
$ i! I; l4 ]4 V6 o4 s0 x
. S3 m0 b- _: _& Ssubplot(212); k8 \ N+ a) W9 C5 l
( Z, U/ g U3 Z- @0 \1 Fpareto(Y,X)5 t9 T5 e/ h2 f, N
( U5 a8 U/ F- V4 D& d* }3 ]8 v
title('排列图示例二')%x轴下标有x指定
4 X2 ~. u% y1 k( J! k$ C; k( b+ w' Q! `) @. m: T( s# p
运行结果: (y轴左侧是标注累积曲线的 )' P9 n7 t) W7 i
: H' ], b! g, J c( q
8 q) t5 y. [) ?0 A8 b# Q7 m
' n. i& L6 |+ A+ J! N: `; y3 {
- t/ u* G$ T3 U+ z; ^" b# {, xpareto(Y) labels each bar with its element index in Y and also plots a line displaying the cumulative sum of Y.0 L2 h1 f1 h5 g' [0 d J( G7 X
" j. D) w5 o# j8 p
/ [7 P8 {0 p O2 B A% F用stem,stem3绘制柄状图
. h6 Z, }: R3 D; Y g- S, J
4 N9 }* H% d" d b% K用stem绘图程序:* B s) c5 ^( `! |( N+ @4 [; b
1 P1 P) X- Z/ I4 z二维柄状图! u$ Z/ ?' Q. S9 C
" }0 G% V& U' k8 e( O ?2 O4 ~
y=linspace(0,2*pi,10)3 ]0 U/ N$ h; F5 F3 U
( ~: O$ X9 V. T/ }6 G3 p
stem(cos(y),'fill','-.')%对离散图的末端进行了填充
% k1 y' z0 E9 A; G. ~0 ~, B& R2 G3 D3 d- v; D
title('二维柄状图示例');
* L' j& b6 p) q3 D6 K4 x! I w% l0 W6 y% p! r$ p* n5 w
运行结果:% C" E9 z4 ?* @5 G$ a9 }
% [- H" E- D& Y
2 b0 V! z8 Y x8 I8 L2 A
% d- j: R9 \9 T4 q6 W
: l; u7 X W2 K& b阶梯图的绘制
4 Z# y1 E5 i* V! U4 }4 t! d8 S7 _; n) I$ ~0 x
绘图函数stairs
- L9 d4 D6 E& K9 `) C+ _0 O, j% p9 ~- A5 p" `- V
4 n0 |; S' h A+ J
使用stairs指令,可画出阶梯图,其精神和柄状图相近,只是将目前资料点的高度向右水平画至下一点为止。! o( ^( K. w6 l6 Y( i D
& A* s6 K# }" k* }5 g
用scatter,scatter3绘制散点图
U4 p! Z, I! U$ [: \4 p
, Y% W* ]" v2 O2 e散点图指令scatter3标志三维数据点,前三个输入宗量必须是同长的向量。! j' e9 m+ H, {- l4 L' E
+ L7 r3 B" g. r- P. k3 _
用scatter绘图程序:
) I0 J% _3 W9 h- k: ~
, r3 }. M/ Z/ `1 y" h二维散点图( m' K5 R. _5 F- k N9 G# B
' e7 q. P' _3 c$ c# W: G, `( ex=rand(1,100)*100;%绘制图标的x,y轴的坐标0 w' U. e. b5 |
y=rand(1,100)*100;% h$ H" m# G$ \. ]2 y$ k
s=rand(1,100)*100;%绘制图标的大小
& X: c% Z% g4 {- y9 q9 ]c=rand(1,100)*255;%绘制图标的颜色
) l; N ^- j. H) bsubplot(2,1,1)8 s- @9 C; ]- L8 T3 X0 q5 q8 t
scatter(x,y);%绘制具有默认大小与颜色的二维散点图
: z9 {/ X4 Z- M1 e/ K7 gtitle('二维散点图指令scatter(x,y)');; x4 u. S( b1 @2 @6 k
subplot(2,1,2)
0 y) {+ H( U! I4 v1 r8 xscatter(x,y,s,c);%绘制由参数s、c定义的二维散点图
8 K1 @, F, W& i* q6 Ytitle('二维散点图指令scatter(x,y,s,c)');
r6 j3 d0 O9 q/ H8 n( m2 U
4 C/ Y% G" [. D+ j( O
" |- w- t8 R$ ` V+ w" W. \
/ c% f+ i' L% h* B+ {8 s% L' r: S9 b# m4 [( M5 v
scatter(X,Y,S,C) displays colored circles at the locations specified by the vectors X and Y (which must be the same size).
6 q5 z1 h9 j+ I, ?/ i4 W3 }
/ _$ F, A, d, a$ ~' \( GS determines the area of each marker (specified in points^2). S can be a vector the same length as X and Y or a scalar. If S is a scalar, MATLAB draws all the markers the same size. If S is empty, the default size is used.( j& w& ?# f* Q) o
/ z+ f6 F7 P/ D4 p
C determines the color of each marker. When C is a vector the same length as X and Y, the values in C are linearly mapped to the colors in the current colormap. When C is a 1-by-3 matrix, it specifies the colors of the markers as RGB values. If you have 3 points in the scatter plot and wish to have the colors be indices into the colormap, C should be a 3-by-1 matrix. C can also be a color string (see ColorSpec for a list of color string specifiers).! A3 a* [4 F7 C1 z+ B0 [+ r- y
# h+ r- }* T9 k
4 b% Z2 }1 z* y2 W* R2 K* G* D3 L8 y# E- m0 a
[x,y,z]=sphere(16);%获取球体的坐标
" Q" ~/ |/ X0 B( ?+ X" V4 g3 QX=x(:);
5 \ M7 @3 C# @Y=y(:);) j4 J: T5 `8 g: r
Z=z(:);%矩阵的转换* C4 H! S4 r- ~) f2 o2 d0 ^1 ~
S=floor((abs(Z)+1)*50);5 ~9 l) @' `! J$ a
C=floor(abs(Z)*255);%定义图标大小和颜色与球体的纬度有关
4 z$ [, k# a6 F( Mscatter3(X,Y,Z,S,C,'filled')%绘制三维散点图,填充图标8 g- n5 f" K) q0 k
title('三维散点图:球体示例')( ~3 d. P/ l4 W$ l$ l8 j- t
; k( g' u2 n# W6 y9 W6 z
( T! i. {! z `: K. S
$ ^+ R* Z9 L' g' v5 `
6 R8 U% p) ~: p* N# U& c/ u. nB = floor(A) rounds the elements of A to the nearest integers less than or equal to A. For complex A, the imaginary and real parts are rounded independently.
; a+ b. \( W( f7 B3 u% X" {; E( q+ c; A5 H6 t
, M0 m2 K/ c4 w) u用plotmatrix绘制矩阵的散点图: ?5 a* p' t6 a1 ?! x4 c! j+ Y9 i
6 ~0 E z( s' c$ V# ?: y9 ~指令 plotmatrix 有两种基本调用方式:: J1 u. j6 s$ S" z
" R- u$ Z6 U/ ?( M& y1 r9 O8 K( |(1)对于数据矩阵p*n 维的 X 和p*m 维的 Y ,调用格式 plotmatrix(X,Y) 将画出一个分割成m*n 个子散点图。其中第(i,j) 个子散点图是根据 Y 第i 列和 X 第j 列数据画出的。(2)对于数据矩阵 p*n维的 X ,调用格式 plotmatrix(X) 将画出分割成n*n 个子块的图。该图的对角块,画出的是 X 每列的数据的频数直方图;而其他子块是相应列构成的散点图。该指令可用来观察数据矩阵(或同一矩阵列向量)间的统计关系。
7 b+ E* w" _! N3 A" g% U- u
8 X3 g0 J) I5 I9 e0 J) @* Fx=randn(50,3);
$ q) W6 [0 }- ]8 u. Iy=x*[-1 2 1;2 0 1;1 -2 3];%定义绘制矩阵值
! g$ d! ]3 |, U7 @6 _2 Y4 ^; Rplotmatrix(y,'*b')
8 @/ w, F4 L' S( v2 atitle('绘制3×3散点图矩阵')
, k4 `6 V- T- a3 O5 W+ r
5 P. V$ Y2 T* B) S
9 k3 M: t. b: Q+ W2 L( k7 @7 G
: B, m* B, }- A4 k9 E1 C/ ~' A3 l# l4 q# @+ y2 @, K# E
plotmatrix(X,Y) scatter plots the columns of X against the columns of Y. If X is p-by-m and Y is p-by-n, plotmatrix produces an n-by-m matrix of axes.
; ~: |( E K, Y; J; C% ?+ n/ v, u; g& i
plotmatrix(X) is the same as plotmatrix(X,X), except that the diagonal is replaced by hist(X(:,i)).( B4 B# q4 ~* x/ |! u) }
0 U4 }- E6 U E
" `) w6 c) S4 p5 ]* ^' P- K5 M
contour(Z):绘制矩阵Z的等高线图,其中Z为相对X-Y平面的高度,Z必须是至少2*2的矩阵且其中至少有两个不同的值。等高线的级数和各级等高线的数值是基于Z的最大和最小值之间自动选取的,X和Y的范围分别是[1:n]和[1:m], 其中[m,n] = size(Z)。# U) y" a+ L ~/ [% ~
( m# i7 W/ Y5 e7 ?7 C, U) }2 c) h
contour(Z,n):绘制矩阵Z的n级等高线图
+ u% t* F- ]1 P4 M% R) L[C,h] = contour(...) returns a contour matrix, C, derived from the matrix returned by the low-level contourc function, and a handle, h, to a contourgroup object. clabel uses the contour matrix C to create the labels.2 u4 q7 g% I- K6 V6 k
) Q9 U+ n: R9 w0 K! P+ t( ^
[X,Y]=meshgrid(-2:.2:2,-2:.2:3);%表面网格函数8 ^4 ^7 o% _, R
Z=X.*exp(-X.^2-Y.^2);. H7 s4 k2 o& Q3 |! Q5 R! b( z+ g
[C,h]=contour(X,Y,Z,10);%绘制轮廓线
' u* B1 A6 U1 c! B, \; ]clabel(C,h)%对轮廓线进行标注5 x; ~4 C" B$ a( ~3 K' W7 O5 K
title('二维轮廓图示例')9 N5 f4 a' P" d) w9 L
% g# k+ X1 s: v/ K
- r% c' X- h1 U0 c# L# u0 N
; S1 o! n% C! L4 Z2 g/ k+ A: H- f
' j8 D' W- n* L( R1 [1 v5 i, ^4 Z( G! Z5 }7 o: a
|
|