问题
My Data: File 1:
2015-08-01 07:00 0.23 0.52 0.00 0.52 9 14.6 14.6 14.6 67 8.5 0.0 --- 0.00 0.0 --- 14.6 14.1 14.1 16.3 1016.2 0.00 0.0 156 0.22 156 0.0 0.00 0.0 0.003 0.000 23.9 39 9.1 23.4 0.05 23 1 100.0 1 1.8797836153192153 660.7143449269239
File 2:
2015-08-01 07:00 0.23 0.52 0.00 0.52 9 14.6 14.6 14.6 67 8.5 0.0 --- 0.00 0.0 --- 14.6 14.1 14.1 16.3 1016.2 0.00 0.0 156 0.22 156 0.0 0.00 0.0 0.003 0.000 23.9 39 9.1 23.4 0.05 23 1 100.0 1 1.8797836153192153 660.7143449269239
..... and so on.
So the csv. files are multiple days and from those days I created a scatterplot using 3:43:0
I used the 0as a dummy so I could use varialble linecolors (if I wouldn`t have done that the colors would have repeated themselfs after line 9)
The Scatter Plot looks great but now I want to fit a curve into the plot. There are 2 similar questions: Question 1 , Question covering the Fit Data from multiple files but when trying the cat or awk command I always end up with an error telling me cannot create pipe for data
So what I tried was:
fit f(x) '< cat file1.csv file2.csv file3.csv file4.csv file5.csv' u 3:43:0 a,b
am I missing something here? Cou8ld this be a OS Problem? I run Windows 7.
回答1:
Both cat and awk are Unix-commands. The windows-equivalent of cat is type. For instance, the following should work:
fit f(x) '< type file1.csv file2.csv' u 3:43:0 via a,b
If, for some reason, you need to use a tool like gawk (gnu-equivalent to awk), grep, or sed in windows, take a look at gnuwin32.
来源：https://stackoverflow.com/questions/33167590/fitting-function-with-multiple-files