清空筛选条件
清空筛选条件

Loop to carry out calculation for pairs 1 and 2, then pairs 2 and 3 and so on.

1 次查看（过去 30 天）
BOB
BOB 2018-8-21
评论： Torsten 2018-8-21
Hi,
I have two 8x1 matrices. One matrix is list of longitude coordinates (Final_Longitude_Values). The other matrix is the corresponding latitude coordinates (Final_Latitude_Values).
I want to calculate the distance between the first pair and the second pair, and then the second pair and the third pair, and so on until I have come to the end of each matrix.
I have written the following code in an attempt to automate this process:
{for j = 1:length(Final_Latitude_Values)
latlon1=[(Final_Latitude_Values(j)) (Final_Longitude_Values(j))];
latlon2=[(Final_Latitude_Values(j+1) (Final_Longitude_Values(j+1))];
end
[d1km d2km]=distance(latlon1,latlon2);
Segment_Distance = d2km}
However, the index exceeds the matrix dimensions, and I can't seem to figure out how to work around this issue. If anyone could correct my code it would be much appreciate.
Thanks

请先登录，再回答此问题。

采纳的回答

Torsten
Torsten 2018-8-21
Use
for j = 1:length(Final_Latitude_Values)-1
instead of
for j = 1:length(Final_Latitude_Values)
Best wishes
Torsten.

更多回答（2 个）

Fangjun Jiang
Fangjun Jiang 2018-8-21
You have 8 locations thus 7 distances. When j is 8, Final_Latitude_Values(j+1) exceeds the matrix dimension.
Change the for-loop to
for j = 1:length(Final_Latitude_Values)-1
BOB
BOB 2018-8-21
Cheers folks! Works great.
  1 个评论
Torsten
Torsten 2018-8-21
I don't know if this is intended, but note that you only calculate the distance between the last two components of the vectors, namely
[(Final_Latitude_Values(j)) (Final_Longitude_Values(j))]
and
[(Final_Latitude_Values(j+1)) (Final_Longitude_Values(j+1))]
for
j = length(Final_Latitude_Values)-1.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Data Type Identification 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by