I have been stuck on this for a few days. I have a folder with hundreds of shapefiles. I want to add an attribute field to the shapefiles giving the shapefile's name as a date. The shapefile name includes Landsat path/row, year, and Julien date ('1800742003032.shp). I want just the date '2003032' to be added under a "Date" field.
Here's what I have so far:
arcpy.env.workspace = r"C:\Users\mkelly\Documents\Namibia\Raster_Water\1993\Polygons"
for fc in arcpy.ListFeatureClasses("*", "ALL"):
print str("processing" + fc)
field = "DATE"
expression = str(fc)[6:13]
arcpy.AddField_management(fc, field, "TEXT")
arcpy.CalculateField_management(fc, field, "expression", "PYTHON")
Results:
processing1800742003032.shp
processing1800742009136.shp
processing1820732010289.shp
end Processing...
It runs perfectly (on a sample 3 shapefiles) but the problem is that when I open the shapefiles in Arcmap, they all have the same date. The results show that it processed each of the 3 shapefiles, and the add field management must have worked because all of the fields are populated. So there is an issue with either the expression, or the Calculate field command.
How can I get it to populate the specific date for each shapefile, and not just have all of them be '2003032'?? There are no error messages.
Thanks in advance!
I figured it out! For calculate field management, expression should not be in quotes. It should be: arcpy.CalculateField_management(fc, field, expression, "PYTHON")
This post may have been a waste of time, but at least maybe it will help someone with a similar problem in the future.
Related
Update: sample sheet provided here: https://docs.google.com/spreadsheets/d/1BapXdaVOUL634SstNJXqYNocsD_EvvtlbJ77vlElmZs/edit?usp=drivesdk. Any help will be appreciated!
Hi fellow nerds.
I'm trying to make the current column (most recent interaction date with client) display the max values (most recent dates) from ContactLog!b:b (dates of all recorded interactions), when the client name in ContactLog!A:A matches to the client name in current row column A.
After many days of trying, I've found several formulas to successfully achieve this result for the current cell only.
=MAXIFS(ContactLog!B:B, ContactLog!A:A, A:A)
=MAX(FILTER(ContactLog!B4:B, ContactLog!A4:A=VLOOKUP(A2, ContactLog!A4:B, 1, FALSE)))
=MAX(QUERY(ContactLog!A4:B, ""SELECT B WHERE A = '""&VLOOKUP(A2, ContactLog!A4:B, 1, FALSE)&""'"", 0))
=IF(COUNTIF(ContactLog!A:A, A2),MAX(FILTER(ContactLog!B:B, ContactLog!A:A = A2)),"")
But none of these seem to work with arrayformula, to spread to the entire column. I'd like this result to apply automatically to the entire column (wherever column A is not blank).
It's displaying the correct max value for the first cell (in which the formula is written), and I could drag the formula down, but not spreading automatically as an array.
I've tried using =match with =filter, but that keeps running into mismatched range row sizes. (I've previously solved that by using filter within a filter, but can't figure that out here).
[I have a similar issue for the nearby columns also, "most recent interaction method", and "reminders & goals". The formula there is:
=INDEX(ContactLog!C:C, MATCH(MAX(IF(ContactLog!A:A=A2, IF(ContactLog!B:B=MAX(IF(ContactLog!A:A=A2, ContactLog!B:B)), ROW(ContactLog!B:B)))), ROW(ContactLog!B:B), 0))
And
=IFERROR(CONCATENATE(JOIN(" • ",FILTER(ContactLog!D:D,ContactLog!A:A=A2, ContactLog!D:D<>"")),IF(INDEX(ContactLog!D:D,MAX(IF(ContactLog!A:A=A2,ROW(ContactLog!D:D))))="","","")),"")
They both work great, but I can't get them to work with arrayformula...]
What am I missing?
You can do something like this with BYROW, that allows you to expand your formula through the column and be calculated "row by row". Using your first option:
=BYROW(A:A, LAMBDA (each,IF(each="","",MAXIFS(ContactLog!B:B, ContactLog!A:A, each))))
I have a task to validate decimal and date field.I am able to validate decimal and date filed on same column but not able to keep old column values.
Input:
id,amt1
1,123
2,321
3,345
4,543
5,789
Current Output:
id,amt1
1,12.3
2,32.1
3,34.5
4,54.3
5,78.9
Expected Output:
id,amt1,original_amt1_values
1,12.3,123
2,32.1,321
3,34.5,345
4,54.3,543
5,78.9,789
Below is the code, I am able to validate decimal filed but not able to keep original values. Kindly help me on this. I want to keep its original column in dataframe itself.
SourceFileDF = SourceFileDF.withColumn("amt1", DecimalConversion(col(amt1)))
DecimalConversion is my UDF and SourceFileDF is my dataframe.
You can use a temporary column name for "amt1" and the use column rename
SourceFileDF.withColumn("amt1_converted", DecimalConversion(col(amt1)))
SourceFileDF.withColumnRenamed("amt1", "original_amt1_values")
SourceFileDF.withColumnRenamed("amt1_converted", "amt1")
You can use select and provide the alias in a single line :
sourceFileDF.select(
DecimalConversion($"amt1").as("amt1") ,
$"amt1".as("original_amt1_values")
)
I have a Form which will help me to filter out the records I want for my Report. The button will open the Report On Click.
This is the code in the button:
Private Sub Open_OEE_Click()
DoCmd.OpenReport "OEE_Report", acViewReport, , , acWindowNormal
End Sub
I keep getting the error:
I also have placed the query in my report under the Record Source as:
SELECT * FROM 3_OEE WHERE ((([3_OEE].RecordID)=Forms![3_OEE_Report]!cboRecordID) And (([3_OEE].Date_Recorded)=DateValue(Forms![3_OEE_Report]!Date_Recorded)) And (([3_OEE].MC_No)=Forms![3_OEE_Report]!cboMCNo) And (([3_OEE].Product)=Forms![3_OEE_Report]!cboProduct));
I want to search based on one criteria (text box or combo box) and not all four at once.
Am I missing out something?
MS-Access does tend to go a bit overboard with the brackets. Make the report's Record Source a bit easier to read by trimming out the unnecessary ones. You also need to get your date criterion in the right format - Access always uses US formatting in SQL queries and needs # signs around the date:
SELECT * FROM 3_OEE
WHERE [3_OEE].RecordID = Forms![3_OEE_Report]!cboRecordID
And [3_OEE].Date_Recorded = Format(Forms![3_OEE_Report]!Date_Recorded, "\#mm/dd/yyyy\#")
And [3_OEE].MC_No = Forms![3_OEE_Report]!cboMCNo
And [3_OEE].Product = Forms![3_OEE_Report]!cboProduct;
I would also suggest creating a named query for this and setting the report's Record Source to the named query. You can then test the query in isolation without having to run the report (but make sure the Form is open and the relevant controls are populated).
I asked for help from another source.
Answer to Question
I've got a buffer which contains a mix of data, number and character fields. I am getting the displaying the values of the fields, but for some reason date fields return "?" when I try to add them to a string.
I still get ? even if I do
ASSIGN lvString = lvString + STRING( hField:BUFFER-VALUE ).
I've also tried assigning the BUFFER-VALUE to a local DATE variable, and converting that to a string, but that doesn't work either - still ?.
However if I use the STRING-VALUE attribute, it works fine.
How do I get the value out as a date field, rather than just a string?
There are two ways that you can use to achieve your needs. One is to use directly the table buffer and the other is to use an QUERY handle.
First example using a buffer directly from a table (or a TEMP-TABLE, doesn't matter):
DEF VAR dateVar AS DATE NO-UNDO.
FIND FIRST job NO-LOCK.
dateVar = DATE(BUFFER job:BUFFER-FIELD('dt-job'):BUFFER-VALUE).
MESSAGE dateVar
VIEW-AS ALERT-BOX INFO BUTTONS OK.
Second example using a query handle:
DEF VAR dateVar AS DATE NO-UNDO.
DEF QUERY qrJob FOR job.
OPEN QUERY qrJob FOR EACH job.
QUERY qrJob:GET-FIRST().
dateVar = DATE(QUERY qrJob:GET-BUFFER-HANDLE(1):BUFFER-FIELD('dt-job'):BUFFER-VALUE).
MESSAGE dateVar
VIEW-AS ALERT-BOX INFO BUTTONS OK.
As Tim Kuehn said you can substitute 'dt-job' by # of field in the query if you know its position inside the query. I could used BUFFER-FIELD(2) in substitution of BUFFER-FIELD('dt-job') because dt-job is the #2 field in my query. Keep in mind that use the FIELDS clause in a FOR EACH or in an OPEN QUERY statement changes the order of fields in query. Generally, for browsers only available the columns fields specified in FIELDS section, in order.
These might work for you. It's important to say that BUFFER-VALUE always returns a CHARACTER data type and because of this you need to use DATE statement for data conversion.
Hope it helps.
The standard form for getting a data of the field's data type is
buffer table-name:buffer-handle:buffer-field("field-name"):buffer-value.
for arrays it's:
buffer table-name:buffer-handle:buffer-field("field-name"):buffer-value[array-element].
You can also substitute a field # for "field-name" to get the buffer field handle.
I'm trying to exclude any value from a certain field (table.value) that does not match this format AA#####A. Example if they entered APT12345T, or PT12345PT and No Value then I want to exclude it from the report. It needs to match example AP12345P. What selection formula can I use to accomplish this.
Any help is greatly appreciated
Thanks in advance.
try reading Crystal's help topics on the mid() and isnumeric() functions.
here's an example from the help file:
Examples The following example is applicable to both Basic and Crystal
syntax:
Mid("abcdef", 3, 2)
Returns "cd".
so, in your case, you want to strip your value into three pieces,
mid(table.value,1,2)
mid(table.value,3,5)
mid(table.value,8,1)
and build up a three-part boolean variable where:
the first piece is not numeric(), or between 'AA' and 'ZZ', or however
else you want to test for letters,
the second part isnumeric(), and
the third part passes the same test as the first part.
where are you getting stuck?
something like this:
not isnumeric(mid({table.field},1,2)) and
isnumeric(mid({table.field},3,5) and
not isnumeric(mid({table.field},8,1))