There is a TChart component in C++ Builde with one serie.
I add the data using AddXY method but I want the Y-Axis to have fixed minimum and maximum values and fixed step. I've managed to understand how the first two things are done.
So my question is: How can I define a fixed step for the Y-Axis in TChart component.
Important: I've tried using Increment property but it gives me distance from the origin and that's not what I want.
Chart1->LeftAxis->Automatic = false;
Chart1->LeftAxis->Minimum = M - 2 * S;
Chart1->LeftAxis->Maximum = M + 2 * S;
Chart1->LeftAxis->Increment = S;
Update: I'll try to explain more clearly what I want to be. After I defined the minimum and maximum for the chart, I want to make a fixed step for this. The code I posted above doesn't work properly because I need a fixed step beginning from Minimum value and not from zero value as the code in question does.
I've found the answer to my question. I appreciate that you were helping me. Thank you.
I just needed to change the Items propery of the axis.
Instead of Increment one should use
Chart1->LeftAxis->Items->Clear();
Chart1->LeftAxis->Items->Add(double Value);
Related
I'm making a time-spending tracker based on the work I do every hour of the day.
Now, suppose I have 28 types of work listed in my tracker (which I also have to increase from time to time), and I have about 8 significance values that I have decided to relate to these 28 types of work, predefined.
I want that, as soon as I enter a type of work in cell 1 - I want the adjacent cell 2 to get automatically populated with a significance value (from a range of 8 values) that is pre-definitely set by me.
Every time I input a new or old occurrence of a type of work, the adjacent cell should automatically get matched with its relevant significance value & automatically get populated in real-time.
I know how to do it using IF, IFS, and IF_OR conditions, but I feel that based on the ever-expanding types of work & significance values, the above formulas will be very big, complicated, and repetitive in the future. I feel there's a more efficient way to achieve it. Also, I don't want it to be selected from a drop-down list.
Guys, please help me out with the most efficient way to handle this. TUIA :)
Also, I've added a snapshot and a sample sheet describing the problem.
Sample sheet
XLOOKUP() may work. Try-
=XLOOKUP(D2,A2:A,B2:B)
Or FILTER() function like-
=FILTER(B2:B,A2:A=D2)
You can use this formula for a whole column:
=INDEX(IFERROR(VLOOKUP(C14:C,A2:B9,2,0)))
Adapt the ranges to your actual tables in order to include in the second argument all the potential values and their significances
This is the formula, that worked for me (for anybody's reference):
I created another reference sheet, stating the types of work & their significance. From that sheet, I'm using either vlookup, filter, xlookup.Using gforms for inputting my data.
=ARRAYFORMULA(IFS(ROW(D:D)=1,"Significance",A:A="","",TRUE,VLOOKUP(D:D,Reference!$A:$B,2,0)))
In the creation of a SsaSpikeEstimator instance by the DetectSpikeBySsa method, there is a parameter called pvalueHistoryLength - could anybody please help me understand, for any given time series with X points, which is the optimal value for this parameter?
I got similar issue, when I try to read the paper, https://arxiv.org/pdf/1206.6910.pdf, I notice one paragraph
Also, simulations and theory (Golyandina, 2010) show that it is
better to choose window length L smaller than half of the time series length
N. One of the recommended values is N/3.
Maybe that's why in the ML.Net Power Anomaly example, the value is chosen to be 30 for the 90 points dataset.
I am using Hyperparameter using HParams Dashboard in Tensorflow 2.0-beta0 as suggested here https://www.tensorflow.org/tensorboard/r2/hyperparameter_tuning_with_hparams
I am confused in step 1, I could not find any better explanation. My questions are related to following lines:
HP_NUM_UNITS = hp.HParam('num_units', hp.Discrete([16, 32]))
HP_DROPOUT = hp.HParam('dropout', hp.RealInterval(0.1, 0.2))
HP_OPTIMIZER = hp.HParam('optimizer', hp.Discrete(['adam', 'sgd']))
My question:
I want to try more dropout values instead of just two (0.1 and 0.2). If I write more values in it then it throws an error- 'maximum 2 arguments can be given'. I tried to look for documentation but could not find anything like from where these hp.Discrete and hp.RealInterval functions came.
Any help would be appreciated. Thank you!
Good question. They notebook tutorial lacks in many aspects. At any rate, here is how you do it at a certain resolution res
for dropout_rate in tf.linspace(
HP_DROPOUT.domain.min_value,
HP_DROPOUT.domain.max_value,
res,):
By looking at the implementation to me it really doesn't seem to be GridSearch but MonteCarlo/Random search (note: this is not 100% correct, please see my edit below)
So on every iteration a random float of that real interval is chosen
If you want GridSearch behavior just use "Discrete". That way you can even mix and match GridSearch with Random search, pretty cool!
Edit: 27th of July '22: (based on the comment of #dpoiesz)
Just to make it a little more clear, as it is sampled from the intervals, concrete values are returned. Therefore, those are added to the grid dimension and grid search is performed using those
RealInterval is a min, max tuple in which the hparam will pick a number up.
Here a link to the implementation for better understanding.
The thing is that as it is currently implemented it does not seems to have any difference in between the two except if you call the sample_uniform method.
Note that tf.linspace breaks the mentioned sample code when saving current value.
See https://github.com/tensorflow/tensorboard/issues/2348
In particular OscarVanL's comment about his quick&dirty workaround.
I have an odd issue regarding the SPSS (version 20) use of Chart Template, and any help will be appriciated.
I used the GUI to manualy define a chart template for Histograms. Those are simple definitions:
1) set the x axis between 0 to 100.
2) set the y axis as percent and not as actual number of examples within each bin.
3) set the bin sizes to 5.
4) set the maximal value of the y axis to 20.
I saved the template using the File->Save ChartTemplate option after changing the definitions of one histogram.
Oddly, when I implement the template on a new histogram, only definitions 1,3,4 are generated while 2 is omitted. I searched for a solution and did not find any. This is extremly frustrating since I need to waste time and effort to manualy reset the axis to the right definition over any new histogram I make (which is a lot :/ ).
There might be a way to hack the template code using notepad but I did not see any mention of the Y axis there.
Any help and comment would be much appriciated.
I can't say offhand how to set up a template to do any of those aspects, but here is an example using syntax to specify those four options.
SET SEED 10.
INPUT PROGRAM.
LOOP #i = 1 TO 500.
COMPUTE Var = RV.UNIFORM(0,90).
END CASE.
END LOOP.
END FILE.
END INPUT PROGRAM.
DATASET NAME Sim.
FORMATS Var (F3.0).
EXECUTE.
GGRAPH
/GRAPHDATASET NAME="graphdataset" VARIABLES=Var MISSING=LISTWISE REPORTMISSING=NO
/GRAPHSPEC SOURCE=INLINE.
BEGIN GPL
SOURCE: s=userSource(id("graphdataset"))
DATA: Var=col(source(s), name("Var"))
GUIDE: axis(dim(1), label("Var"), delta(5))
GUIDE: axis(dim(2), label("Percent in Bin"))
SCALE: linear(dim(1), min(0), max(100))
SCALE: linear(dim(2), max(20))
ELEMENT: interval(position(summary.percent.count(bin.rect(Var, binWidth(5)), base.all(acrossPanels()))))
END GPL.
And this is what the graph looks like for me (with my default chart template) in V25.
I'm trying to add a spreadsheet editing function in my iOS app. I am using a gridview to display (not relevant to the question) and I am using LibXL to load the data into the view. That part all works very well but I have no way to calculate the formulas after a cell has been modified.
It appears that when I write a formula with LibXL it is not calculating the new value, just setting the formula value (a string). So when I try to read the number value from that cell it is still set to the last computed number (from excel).
Likewise, if I create cells with numbers and a formula cell to SUM them, it is never actually computed which reads a 0 number value until it's opened in Excel.
I was hoping LibXL was the silver bullet to my problem, but now I'm stuck with just the formula string value (i.e. "SUM(A1:b2)" ) and the last computed value.
I would love it if LibXL simply DID compute values and I just have it all wrong, but I can't see any documentation that says otherwise. If that's not the case are there any Obj-C, C, or C++ libraries that I can use to match the Excel Formula syntax and compute these values?
Just adding my previous comment as an answer:
Dave Delong's DDMathParser has the option to add custom functions, check it out here: http://github.com/davedelong/DDMathParser