Trouble referencing folder from textwave (quotations around string problem)

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Tue, 05/07/2019 - 12:14 pm

Hello all,

Brief background - I have a mobile dataset (latitude, longitude, time, wave1, wave2) that involves repeat drives of some areas over two years. During these drives, I pass points of interest (POIs) sometimes, multiple times, or never.

I would like to collect and plot data associated with specific POIs. I have already found the blocks of data I'm interested in (index_start, index_stop), and the data folder those blocs are associated with (DateofMeasurement) but when I want to operate on all the data associated with a single POI I'm running into a problem.

My experiment file has many folders, each named by the date my data was collected (20180118, 2018071, etc.). During each collection day, I have latitude, longitude, time, wave0, wave1, wave2, etc. 

I would like to access segments of data from different days. Currently, my code looks something like this:

 

//examples of waves being used
A_Code= {1,1,9,1,1,1,6,1}
DateofMeasurement= {"'20180118'","'20180118'","'20180118'","'20180710'","'20180710'","20180713'","'20180713_14_Drive2'","'20180713_14_Drive2'"}
index_start= {22673,22943,23147,6866,7037,28912,2822,2902}
index_stop= {22847,23127,23559,6930,7128,28963,2908,2945}

function calculate_correlation() //I execute this function from a specific POI folder
wave A_Code, Index_Start, Index_Stop, Wave1, Wave2
wave/T DateofMeasurement
//A_Code, Index_Start, Index_Stop and DateofMeasurement all reside in a specific POI folder
//wave1 and Wave2 are in every measurement day folder
variable i, looplength
looplength = numpnts(A_Code)

string folder //This is where I need to get rid of the extra "" on either side of my folder name

Duplicate /o A_code,  Wave1_Intercept,  Wave1_Int_sig,  Wave1_Slope,  Wave1_Slope_sig, Wave1_Rsq
Wave1_Intercept =nan
Wave1_Int_sig =nan
Wave1_Slope = nan
Wave1_Slope_sig = nan
Wave1_Rsq = nan

Wave W_coef, W_sigma

for (i=0; i<=looplength; i+=1)
    if (A_Code[i] == 1)
    folder = DateofMeasurement[i]
        CurveFit/M=2/W=0/Q line, Root:$(folder):Wave1[Index_Start[i], Index_stop[i]]/X=Root:$(folder):Wave2[Index_Start[i], Index_stop[i]]/D
        //hopefully CurveFit works in this context. I haven't debugged this far yet.
       
Wave1_Intercept[i]  = W_coef[0] //store variables from linear fit for comparison
        Wave1_Int_sig[i]    = W_sigma[0]
        Wave1_Slope[i]      = W_coef[1]
        Wave1_Slope[i]      = W_sigma[1]
        Wave1_Rsq[i]        = V_r2
   elseif (A_Code[i] > 1)
   
    endif
endfor


end

Basically, I have extra " " around my folder name that invalidates the path name. Any suggestions would be much appreciated.

 

Thank you for your time,

 

Edie

I'm not sure I understand but, if what you want to do is remove the single quotes from the value stored in the folder string variable, here is an example:

Function Demo()
    String folder = "'20180118'"
    folder = ReplaceString("'", folder, "")     // Remove single quotes
    Print folder
End

 

May 7, 2019 at 04:51 pm - Permalink