0 个投票

Hi
I have data in 2D as a line data (example given as)
y1 x1 y2 x2 val err
36.97 126.5 36.79 126.45 394.94 1.79
36.98 126.4 36.79 126.45 179.59 0.75
37 126.65 36.55 126.64 82.64 0.35
37.4 127.21 37.35 126.7 379.76 1.53
34.75 127.17 34.4 126.7 172.95 0.73
37.45 126.82 37.89 126.77 401.29 1.6
36.98 126.4 37.08 126.77 1168.43 4.97
37.4 127.21 37.89 126.77 114.6 0.52
35.32 127.45 34.98 126.9 289.95 1.19
36.97 126.5 37.49 126.92 3462.07 15.01
37.16 127.52 37.49 126.92 151.54 0.61
37.4 127.21 37.49 126.92 167.04 0.69
37.16 127.52 37.49 126.92 240.72 1.01
36.2 127.48 36.27 126.92 235.94 0.95
36.35 127.2 36.27 126.92 155.95 0.63
35.27 127.42 35.49 126.93 1002.81 4.37
35.32 127.45 35.49 126.93 756.71 3.24
36.97 126.5 37.28 126.98 262.64 1.16
37.4 127.21 37.28 126.98 118 0.49
36.9 126.59 37.28 126.98 114.9 0.49
35.27 127.42 35.16 126.99 180.78 0.61
I need to interpolate the data. (The gridded data must be shown within the limits as defined by the user as Y (35.5 - 36.5) and X (128.5 - 129.5)
How I can do it. Waiting for your kind reply.

5 个评论
显示 3更早的评论 隐藏 3更早的评论

KSSV
KSSV 2020-6-5
It is not possible to achieve what you want....the given points lie somewhere and the grid extents for which you want to interpolate are somehwere. Figure atatched.
Hi KSSV
Is it possible to make grid at that place according to data?
KSSV
KSSV 2020-6-5
But what is the corresponding val for (x1,y1) and (x2,y2) data? Is val and err are same?
val is the corresponding value and err is the standard error
Dear KSSV
Thanks for your kind help.
I want to ask if we have only two lines as
140.5 35.25 140.75 35.5 10 1
140.25 35.5 140.5 35.75 5 2
What we have to change as when I run for only two lines the error message is
"Matrix dimensions must agree."
Thanks

请先登录，再进行评论。

请先登录，再回答此问题。

 采纳的回答

KSSV
KSSV 2020-6-5

0 个投票

data = [36.97 126.5 36.79 126.45 394.94 1.79
36.98 126.4 36.79 126.45 179.59 0.75
37 126.65 36.55 126.64 82.64 0.35
37.4 127.21 37.35 126.7 379.76 1.53
34.75 127.17 34.4 126.7 172.95 0.73
37.45 126.82 37.89 126.77 401.29 1.6
36.98 126.4 37.08 126.77 1168.43 4.97
37.4 127.21 37.89 126.77 114.6 0.52
35.32 127.45 34.98 126.9 289.95 1.19
36.97 126.5 37.49 126.92 3462.07 15.01
37.16 127.52 37.49 126.92 151.54 0.61
37.4 127.21 37.49 126.92 167.04 0.69
37.16 127.52 37.49 126.92 240.72 1.01
36.2 127.48 36.27 126.92 235.94 0.95
36.35 127.2 36.27 126.92 155.95 0.63
35.27 127.42 35.49 126.93 1002.81 4.37
35.32 127.45 35.49 126.93 756.71 3.24
36.97 126.5 37.28 126.98 262.64 1.16
37.4 127.21 37.28 126.98 118 0.49
36.9 126.59 37.28 126.98 114.9 0.49
35.27 127.42 35.16 126.99 180.78 0.61 ] ;
y1 = data(:,1) ; y2 = data(:,3) ;
x1 = data(:,2) ; x2 = data(:,4) ;
val = data(:,5) ; err = data(:,6) ;
m = 100 ;
xi = linspace(min(x1),max(x1),m) ;
yi = linspace(min(y1),max(y1),m) ;
[X,Y] = meshgrid(xi,yi) ;
V = griddata(x1,y1,val,X,Y) ;
pcolor(X,Y,V)
shading interp

1 个评论
显示 -1更早的评论 隐藏 -1更早的评论

Dear KSSV
I need your more help
for the same data, I need node values if possible.
Waiting here for your kind reply.

请先登录，再进行评论。

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Spline Postprocessing 的更多信息

产品

版本

R2019b

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by