Timeline charts are great for providing quick snapshots of historical events. And hardly a day goes by without some one making a cool visualization of a time line of this or that. Time lines are easy to read, present information in a logical manner and mostly fun.
So yesterday, I set out to mimic the iconic gadgets of all time in excel, just for fun. Then it strike me, why not make a visual time line of Microsoft Excel ? So I did that instead.
Here is a brief history of Microsoft Excel, in a visual time line
As you can guess, the chart is made in Excel. Read on if you want to know how this is constructed.
- The basic time line construction is similar to the one shown in project timeline chart article.
- What you are seeing is a bar chart with some formatting. The bars are made invisible.
- We use 100% negative vertical error bars to show the leader lines.
- Data labels show the messages like “VisiCalc launched”
- To show the years, I have used another dummy series and plotted it on secondary axis (related: how to add secondary axis?)
- Once the basic timeline is ready, I have added various images (logos) to the chart by pasting them inside the chart and manually adjusting their positions.
- Rest of the work is anybody’s guess.
- If you are curious to know how this works, download the source files [Excel 2003 version, Excel 2007 version]
It is hard to imagine that it has been only 25 years since this beautiful tool took birth and shaped in to such a massive productivity application.
Source of information on History of Excel and Logos:
- Various excel versions and their information [Spreadsheet Page]
- History of spreadsheets and VisiCalc [DSS Resouces]
- Excel for Mac – Press Kit [Microsoft Press Pass]
- Excel Splash Screens – Right from version 1.0 [Guidebook Gallery]
Your comments?
Do you like this visualization? How would you improve this? Also, if you are an excel veteran, share your memories and experiences…
More visualization projects:
6 Responses to “Make VBA String Comparisons Case In-sensitive [Quick Tip]”
Another way to test if Target.Value equal a string constant without regard to letter casing is to use the StrCmp function...
If StrComp("yes", Target.Value, vbTextCompare) = 0 Then
' Do something
End If
That's a cool way to compare. i just converted my values to strings and used the above code to compare. worked nicely
Thanks!
In case that option just needs to be used for a single comparison, you could use
If InStr(1, "yes", Target.Value, vbTextCompare) Then
'do something
End If
as well.
Nice tip, thanks! I never even thought to think there might be an easier way.
Regarding Chronology of VB in general, the Option Compare pragma appears at the very beginning of VB, way before classes and objects arrive (with VB6 - around 2000).
Today StrComp() and InStr() function offers a more local way to compare, fully object, thus more consistent with object programming (even if VB is still interpreted).
My only question here is : "what if you want to binary compare locally with re-entering functions or concurrency (with events) ?". This will lead to a real nightmare and probably a big nasty mess to debug.
By the way, congrats for you Millions/month visits 🙂
This is nice article.
I used these examples to help my understanding. Even Instr is similar to Find but it can be case sensitive and also case insensitive.
Hope the examples below help.
Public Sub CaseSensitive2()
If InStr(1, "Look in this string", "look", vbBinaryCompare) = 0 Then
MsgBox "woops, no match"
Else
MsgBox "at least one match"
End If
End Sub
Public Sub CaseSensitive()
If InStr("Look in this string", "look") = 0 Then
MsgBox "woops, no match"
Else
MsgBox "at least one match"
End If
End Sub
Public Sub NotCaseSensitive()
'doing alot of case insensitive searching and whatnot, you can put Option Compare Text
If InStr(1, "Look in this string", "look", vbTextCompare) = 0 Then
MsgBox "woops, no match"
Else
MsgBox "at least one match"
End If
End Sub