image of the code
It completely eludes me as to why this is happening this bit of code is not even mine and I saw it being operated perfectly so I'm at a loss and the solutions I saw before here didn't work so might as well open a new thread
Figured it out, it was a non problem, I had added and deleted another X variable and it overruled the actual x variable a few cells above
Related
raw_df.loc[:,'full_size'] = raw_df.loc[:,:].apply( full_size,axis="columns",).copy()
is throwing the warning:
See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy
I thought/recalled that normally I can fix this by making sure everything is .loc'd properly, or making the the right hand side a copy(). But this line has been stubbornly throwing the warning regardless. Maybe I'm misunderstanding the warning, but I cannot see what I'm doing here that is potentially-dodgy.
The warning is legit since you're calling pandas.Series.copy on a series where in the same line you assign this one to another series.
I can't tell what's your needs but you can try this approach instead:
raw_df['full_size']= raw_df.apply(full_size, axis='columns')
ser_fullsize= raw_df.loc[:,'full_size'].copy() # or raw_df['full_size'].copy()
When I attempt to train a CreateML model, I get the following screen after inputting my training data:
Create ML error message
I am then unable to add my test data or train the model. Any ideas on what is going on here?
[EDIT] As mentioned in my comment below, this issue went away when I removed some of my training data. Any newcomers who are running into this issue are encouraged to try some of the solutions below and comment on whether it worked for them. I'm happy to accept an answer if it seems like it's working for people.
This happens when the first picture in the dataset has no label. If you place a labeled photo as the first in the dataset and in the coreML json, you shouldn't get that issue.
Correct:
[{"annotations":[{"label":"Enemy","coordinates":{"y":156,"x":302,"width":26,"height":55}}],"imagefilename":"Enemy1.png"},{"annotations":[{"label":"Enemy","coordinates":{"y":213,"x":300,"width":69,"height":171}}],"imagefilename":"Enemy7.png"},{"annotations":
Incorrect:
[{"annotations":[],"imagefilename":"Enemy_v40.png"},{"annotations":[],"imagefilename":"Enemy_v41.png"},{"annotations":[],"imagefilename":"Enemy_v42.png"},{"annotations":
At the minimum you should check for these 2 situations, which triggered the same generic error for me (data analysis stopped), in the context of an Object Detection Model:
One or more of the image names referenced in annotations.json is incorrect (e.g. typo in image name)
The first entry in annotations.json has an empty annotations array (i.e. an image that does not contain any of the objects to be detected)
If you are using any random Split or something similar, make sure, its parsing the data correctly. you can test this easily by debugging.
I suggest you check to see if your training data is consistent and all entries have all needed values. The error is likely in the section of data you removed.
That would cause the error Nate commented he is seeing when he gets that pop up.
Getting the log would be the next step in any other evaluation.
is there any solution to solve a large system of equations in a program with the TI-nspire without typing all the variable names by hand?
For example, the function solve([1 2; 3 4]* [x; y] = 2,{x,y}) requires typing x,y manually. How is this done if the dimensions of the matrix can change?
I tried to use the function constructMat(x[i], i, j, 5, 1) which partly works but solve doesn't accept this function as variable as second argument.
Thanks for the help!!
I had this problem a while ago, i couldnt find any solution but to manually type the list of variables. Ive found the way to construct the list of unkowns (B_n):
i:=3:j:=4:B_n:=newlist(j+1) For i1,i,i+j:B_n[i1-i+1]:=expr("b"&string(i1)):endfor
with result: {b3,b4,b5,b6,b7}.
I dont remember exactly why this didnt work, i guess its the same reason (solve or zeros function will not accept this list as an argument)
I am trying to solve a problem involving the equating of sums of exponentials.
This is how I would do it hardcoded:
#NLconstraint(m, exp(x[25])==exp(x[14])+exp(x[18]))
This works fine with the rest of the code. However, when I try to do it for an arbitrary set of equations like the above I get an error. Here's my code:
#NLconstraint(m,[k=1:length(LHSSum)],sum(exp.(LHSSum[k][i]) for i=1:length(LHSSum[k]))==sum(exp.(RHSSum[k][i]) for i=1:length(RHSSum[k])))
where LHSSum and RHSSum are arrays containing arrays of the elements that need to be exponentiated and then summed over. That is LHSSum[1]=[x[1],x[2],x[3],...,x[n]]. Where x[i] are variables of type JuMP.Variable. Note that length(LHSSum)=length(RHSSum).
The error returned is:
LoadError: exp is not defined for type Variable. Are you trying to build a nonlinear problem? Make sure you use #NLconstraint/#NLobjective.
So a simple solution would be to simply do all the exponentiating and summing outside of the #NLconstraint function, so the input would be a scalar. However, this too presents a problem since exp(x) is not defined since x is of type JuMP.variable, whereas exp expects something of type real. This is strange since I am able to calculate exponentials just fine when the function is called within an #NLconstraint(). I.e. when I code this line#NLconstraint(m,exp(x)==exp(z)+exp(y)) instead of the earlier line, no errors are thrown.
Another thing I thought to do would be a Taylor Series expansion, but this too presents a problem since it goes into #NLconstraint land for powers greater than 2, and then I get stuck with the same vectorization problem.
So I feel stuck, I feel like if JuMP would allow for the vectorized evaluation of #NLconstraint like it does for #constraint, this would not even be an issue. Another fix would be if JuMP implements it's own exp function to allow for the exponentiation of JuMP.Variable type. However, as it is I don't see a way to solve this problem in general using the JuMP framework. Do any of you have any solutions to this problem? Any clever workarounds that I am missing?
I'm confused why i isn't used in the expressions you wrote. Do you mean:
#NLconstraint(m, [k = 1:length(LHSSum)],
sum(exp(LHSSum[k][i]) for i in 1:length(LHSSum[k]))
==
sum(exp(RHSSum[k][i]) for i in 1:length(RHSSum[k])))
I'm currently working on converting a VBA AutoCAD-application over to VB.NET, and the current command I'm working on is creating a simple leader with code like this:
Set leaderObj = ThisDrawing.ModelSpace.AddLeader(points, blockRefObj, leaderType)
leaderObj.ArrowheadType = acArrowDotSmall
leaderObj.ArrowheadSize = 2.5 * varDimscale
leaderObj.DimensionLineColor = acWhite
I've been able to create the Leader-line in .NET using
Dim l = New Leader()
For Each point In jig.LeaderPoints
l.AppendVertex(point)
Next
l.Dimldrblk = arrId
The arrId I got from using the function found here, but I've been unable to figure out how to set the color of the leader to white (it shows up as red by default), and also how to set the size of the arrowhead. If anyone could help me out with this I would be most grateful.
Ok, after a lot of trial and error, I figured out that the solution was rather simple. I didn't have to override any dimension styles (which I honestly don't even know what is, I had a short beginners course in AutoCAD before getting handed this project), I simply had to set an obscure property on the Leader-object. For future references, and for anyone else trying to do the same, here's the properties I ended up using:
leader.Dimclrd
The color of the leader-line. Stands for something like "dimension line color".
leader.Dimasz
The scale of the leader-head.
As type BlockReference, it should have a color property and the property should be an Autodesk.Autocad.Colors.Color or an Integer. Also the reason you are getting the object for read is, in your transaction you are opening the database with
OpenMode.ForRead
And that is correct. But to edit the object in the database, you must retrieve the object like below
var obj = Thetransaction.GetObject(theobjectid,OpenMode.ForWrite) as BlockReferance;
This is done inside of the
using(var trans = TransactionManager.StartTransaction()){}
I'm doing this on a cell, so check the camel case and syntax because I write in c#, but it should be pretty close.
You may want to see if there is a scale property, as to change the size.
Hopefully this will move you in the right direction.
Let me know if you have any problems. :)