Showing posts with label Excel. Show all posts
Showing posts with label Excel. Show all posts

Sunday, September 20, 2015

Species Recording Form

When recording species abundance data you often have endless rows with species names and one gets swollen eyes from searching the right line for each data-entry. Therefore I made myself a handy xls-file to collect species abundance data.
In it a VBA-macro is called with a keybord short-cut which matches a species short name you type in the active cell and jumps to the line with that species, the search entry is deleted automatically and you are in the cell where you want to add data... (download).
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WIKI Search in Excel with VBA

Here's a VBA code snippet for searching a string in a cell in WIKIPEDIA:

Sub wiki()

Dim searchstr As String
Dim searchsadd As String

searchstr = ActiveCell.Value
searchadd = "http://en.wikipedia.org/w/index.php?title=Special%3ASearch&profile=default&search=" & searchstr & "&fulltext=Search"

If Len(searchstr) = 0 Then
MsgBox "The active cell is empty.. Nothing to search for..", vbOKOnly, "WIKIPEDIA"

Else:
ActiveWorkbook.FollowHyperlink searchadd, NewWindow:=True
Application.StatusBar = "WIKI search for: " & searchstr
End If

End Sub
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VBA Spreadsheet Function for Substring Inbetween Strings

Function Substring2(theString As String, str1 As String, repstr1 As Integer, Optional str2 As Variant, Optional repStr2 As Variant) As String

'****************************************************************************************************************
'author: kay cichini
'date: 04112014
'purpose: find substring deligned by the x-th repition of one string at the left side
' and anothers string x-th repition at the right side
'str1: first string to be matched
'str2: second string to be matched, optional
'repstr1: nth repition of str1 to be matched
'repstr2: nth repition of str2 to be matched, optional
' with optional arguments ommited function will return substring ending with the last character of the
' searchstring
'----------------------------------------------------------------------------------------------------------------
'example: Substring2("1234 678 101214 xxxx"; " "; 2; "x"; 3)
' will match position 10 after the second repition of str1, find position 20 after the third "x"
' then apply a mid-function with signature 'mid(string, start, length)',
' where the position 10 is the start and length is position 20 - len("x") - 10 = 9
' and the result is "101214 xx"
'****************************************************************************************************************

Dim start1, start2, lenStr1, lenStr2, length As Integer

If IsMissing(str2) And IsMissing(repStr2) Then

'case when last char in string should be matched
'-----------------------------------------------

start1 = 1
lenStr1 = Len(str1)

If InStr(start1, theString, str1) = 0 Then
'0 -> String couldn't be matched!
Exit Function
End If

For i = 0 To repstr1 - 1
start1 = InStr(start1, theString, str1) + lenStr1
Next i

length = Len(theString) - start1 + 1
Substring2 = Mid(theString, start1, length)

Else

'other cases
'-----------
start1 = 1
lenStr1 = Len(str1)
start2 = 1
lenStr2 = Len(str2)

If InStr(start1, theString, str1) = 0 Or InStr(start2, theString, str2) = 0 Then
'0 -> String couldn't be matched!
Exit Function
End If

For i = 0 To repstr1 - 1
start1 = InStr(start1, theString, str1) + lenStr1
Next i

For i = 0 To repStr2 - 1
start2 = InStr(start2, theString, str2) + lenStr2
Next i

length = start2 - lenStr2 - start1
Substring2 = Mid(theString, start1, length)

End If

End Function
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VBA Macro to Export Data from Excel Spreadsheet to CSV

Sub Export_CSV()

'***************************************************************************************
'author: kay cichini
'date: 26102014
'purpose: export current spreadsheet to csv.file to the same file path as source file
'
' !!NOTE!! files with same name and path will be overwritten
'***************************************************************************************


Dim MyPath As String
Dim MyFileName As String
Dim WB1 As Workbook, WB2 As Workbook

Set WB1 = ActiveWorkbook
ActiveWorkbook.ActiveSheet.UsedRange.Copy

Set WB2 = Application.Workbooks.Add(1)
WB2.Sheets(1).Range("A1").PasteSpecial xlPasteValues

MyFileName = "CSV_Export_" & Format(Date, "ddmmyyyy")
FullPath = WB1.Path & "\" & MyFileName

Application.DisplayAlerts = False
If MsgBox("Data copied to " & WB1.Path & "\" & MyFileName & vbCrLf & _
"Warning: Files in directory with same name will be overwritten!!", vbQuestion + vbYesNo) <> vbYes Then
Exit Sub
End If

If Not Right(MyFileName, 4) = ".csv" Then MyFileName = MyFileName & ".csv"
With WB2
.SaveAs Filename:=FullPath, FileFormat:=xlCSV, CreateBackup:=False
.Close True
End With
Application.DisplayAlerts = True
End Sub
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Search Google Definition for Words in an Excel-File Using VBA

I have a glossary of words held in an excel-workbook. For getting instant definitions from Google I wrote a small macro which does this for me with one click.

This is how it is done:


1. Insert a command-button from the control toolbox (view / toolbars / control toolbox)
2. Double cllick the command button & within the Visual Basic editor insert the below code.

'Info: Macro that searches Google for a definition
'for the word in the active cell.
'Usage: With mouse select cell with word to be
'defined/searched, then hit the button.

Private Sub CommandButton1_Click()
    Dim mystr As String
    mystring = ActiveCell.Value
    mylink = "http://www.google.at/search?q=define%3A+" & mystring
    ThisWorkbook.FollowHyperlink (mylink)
End Sub

3. In design mode add captation, re-size, place, format your button, etc.
4. Exit design mode.
5. Your finished..



ps: you could also do this using the xls-function Hyperlink() but as you may have noticed, saving xls-files containing this function causes some trouble (warning messages, large storage..)
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