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如何通過多個csv文件循環腳本

在前一篇文章之後，我得到了一個腳本，該腳本可以堆疊並格式化笨拙的csv文件。

https://community.jmp.com/t5/Discussions/Help-doing-a-table-transform-and-converting-a-timestamp/td-p/303091

 

我下一個需要幫助的問題是，如何才能在文件夾中的一組csv上重複該操作，將文件名捕獲為列之一，最好也將它們堆疊起來。又名step1，step2，step3，step4文件。

堆疊單個csv可創建400k行輸出。 如果我將這些csv的4 ot 8或10合併，是否會有崩潰的風險？

也許額外的需要是然後再次循環遍歷父文件夾中的下一個文件夾，從而創建新的組合步驟文件？

 

names default to here(1);

//Prompt to select and open an MS Excel file
dt = Open( Pick File( "Select Excel File", "C:\Users\folder\", {"Excel Files|csv;xlsx;xls", "All Files|*"}, 1, 0 ), Invisible );

// Get the column names from the data table
colNames = dt << get column names;
// Remove the 1st col from the list
remove from(colNames,1,1);

// Stack the data
dtStack = dt << Stack(
 columns(
  colNames
 ),
 Source Label Column( "Label" ),
 Stacked Data Column( "Data" ),
 Output Table( "Stacked_Data" )
);

//label the 1st column to Lamda
:Column 1 << Set Name("Lamda");
:Lamda << Modeling Type(nominal);

// Create a new JMP DateTime column
dtStack << New Column( "Timestamp",
 Numeric,
 "Continuous",
 Format( "d/m/y h:m:s", 26, 3 ),
 Input Format( "d/m/y h:m:s", 0 ),
 Formula( Informat( Word( 1, :Label, "Z" ), "d/m/y h:m:s" ) )
);
// Remove formula to convert column to static values
dtStack:Timestamp << delete formula;

// Create the Time variable column
dtstack << New Column( "Time",
 Numeric,
 "Continuous",
 Format( "hr:m:s", 17, 3 ),
 Input Format( "hr:m:s", 0 ),
 Formula( Time Of Day( :Timestamp ) )
);

//Create Absolute Time column, uses if>then error checking for Lamda group changing
dtstack << New Column( "AbsTime",
 Numeric,
 "Continuous",
 Format( "Fixed Dec", 12, 1 ),
 Formula(
  If( Row() == 1 | :Lamda != Lag( :Lamda ),
   0,
   Lag( :AbsTime ) + (:Timestamp - Lag( :Timestamp ))
  )
 ),
);
// Remove formula to convert column to static values
dtStack:AbsTime << delete formula;

// Get rid of no longer needed "Label" column
dtStack << delete columns( "Label" );

 

數據表腳本編寫回复：如何通過多個csv文件循環腳本

基本上，您要做的就是

1. 使用“ Files In Directory（）獲取要處理的文件列表
2. 設置要用於最終數據表的數據表（dtFinal）
3. 使用For（）循環遍歷創建deStack表的目錄中找到的所有文件
   1. 將Source列添加到dtStack
   2. 將dtStack連接到dtFinal表
   3. 關閉dtStack和dt數據表

以下是使用上述項目修改的腳本。該代碼未經測試，您必須添加目錄等才能從中讀取文件。它應該為您提供最終產品的真正好的起點

names default to here(1);

//Prompt to select and open an MS Excel file
//dt = Open( Pick File( "Select Excel File", "C:\Users\folder\", {"Excel Files|csv;xlsx;xls", "All Files|*"}, 1, 0 ), Invisible );

// Get a list of files from the directory
fileList = Files In Directory( <PATH to="" your="" directory=""> || fileList[i] );

// Get the column names from the data table
colNames = dt << get column names;
// Remove the 1st col from the list
remove from(colNames,1,1);

// Stack the data
dtStack = dt << Stack(
 columns(
  colNames
 ),
 Source Label Column( "Label" ),
 Stacked Data Column( "Data" ),
 Output Table( "Stacked_Data" )
);

//label the 1st column to Lamda
:Column 1 << Set Name("Lamda");
:Lamda << Modeling Type(nominal);

// Create a new JMP DateTime column
dtStack << New Column( "Timestamp",
 Numeric,
 "Continuous",
 Format( "d/m/y h:m:s", 26, 3 ),
 Input Format( "d/m/y h:m:s", 0 ),
 Formula( Informat( Word( 1, :Label, "Z" ), "d/m/y h:m:s" ) )
);
// Remove formula to convert column to static values
dtStack:Timestamp << delete formula;

// Create the Time variable column
dtstack << New Column( "Time",
 Numeric,
 "Continuous",
 Format( "hr:m:s", 17, 3 ),
 Input Format( "hr:m:s", 0 ),
 Formula( Time Of Day( :Timestamp ) )
);

//Create Absolute Time column, uses if>then error checking for Lamda group changing
dtstack << New Column( "AbsTime",
 Numeric,
 "Continuous",
 Format( "Fixed Dec", 12, 1 ),
 Formula(
  If( Row() == 1 | :Lamda != Lag( :Lamda ),
   0,
   Lag( :AbsTime ) + (:Timestamp - Lag( :Timestamp ))
  )
 ),
);
// Remove formula to convert column to static values
dtStack:AbsTime << delete formula;

// Get rid of no longer needed "Label" column
dtStack << delete columns( "Label" );

// Add filename as a column to the data table
dtStack << new column( "Source", character, set each value( filename[i] ) );

// Concatenate to final table
dtFinal << concatenate( dtStack, append to first table(1) );

// Clean up
close( dtStack, nosave );
close( dt, nosave );

// End For() Loop
);</PATH>

回复：如何通過多個csv文件循環腳本

還要檢查“多文件導入”。 它會加載CSV文件，如果它們具有相同的列，則將它們串聯起來，並且可以選擇添加文件名列。

回复：如何通過多個csv文件循環腳本

太棒了 它似乎正在運行，但是在第一個文件後出現錯誤

“名稱未解析：filenam} 1}正在訪問或評估'filename'，filename / * ### * /”

 

有什麼想法嗎？

我還調整了腳本以執行選擇文件夾彈出窗口，我認為這不是問題。

// Get a list of files from the directory
dir = Pick Directory( "Select a directory", "C:\Users\folder\");
fileList = Files In Directory( dir );

// Create a skeleton data table to end up being the combined data table
dtFinal = New Table("Final");

// Loop across all of the files found in the directory and read them in
For(i = 1, i <= N Items( fileList ), i++,

dt = open( dir || fileList[i] );