Befehl "discard if equal={1.0}" tut mitunter nicht

Der Befehl "discard if equal={1.0}" von @Henri

Code, hier editierbar zum Übersetzen:

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% 1en ausblenden ====================
\pgfplotstableset{
  discard if equal/.style = {
    preproc cell content/.code={
      \ifdim##1pt=#1pt
        \pgfkeyssetvalue{/pgfplots/table/@cell content}{}
      \fi
    }
  },
}
% ==============================
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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wird in folgender Tabelle manchmal nicht ausgeführt.

Woran kann das liegen? Und wie korrigiert man das?

alt text

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Code, hier editierbar zum Übersetzen:

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%\documentclass[varwidth, border=10pt]{standalone}
\documentclass[paper=a5]{scrbook}
\usepackage[left=1cm, right=1cm]{geometry}
\usepackage{selinput}
\SelectInputMappings{adieresis={ä},  germandbls={ß}}
\usepackage[ngerman]{babel}
\usepackage{pgfplotstable}
\usepackage{amsmath, amssymb, amsfonts}% \binom
\usepackage{colortbl}% \rowcolor, \cellcolor
%\usepackage{multirow}
\usepackage{hhline}
\usepackage{diagbox}  % \diagbox
\usepackage{xcolor, booktabs}
\usepackage{filecontents}
\begin{document}
\setlength\arrayrulewidth{0.905pt} % Um rules deutlich anzuzeigen
\begin{filecontents}{n5.txt}
5  0  0.5905  0.3277  0.2373  0.1681  0.0778  0.0313
5  1  0.9185  0.7373  0.6328  0.5282  0.3370  0.1875
5  2  0.9914  0.9421  0.8965  0.8369  0.6826  0.5000
5  3  0.9995  0.9933  0.9844  0.9692  0.9130  0.8125
5  4  1.0000  0.9997  0.9990  0.9976  0.9898  0.9688
10 0 0.34868    0.10737 0.05631 0.02825 0.00605 0.00098
10 1 0.73610    0.37581 0.24403 0.14931 0.04636 0.01074
10 2 0.92981    0.67780 0.52559 0.38278 0.16729 0.05469
10 3 0.98720    0.87913 0.77588 0.64961 0.38228 0.17188
10 4 0.99837    0.96721 0.92187 0.84973 0.63310 0.37695
10 5 0.99985    0.99363 0.98027 0.95265 0.83376 0.62305
10 6 0.99999    0.99914 0.99649 0.98941 0.94524 0.82813
10 7 1.00000    0.99992 0.99958 0.99841 0.98771 0.94531
10 8 1.00000    1.00000 0.99997 0.99986 0.99832 0.98926
10 9 1.00000    1.00000 1.00000 0.99999 0.99990 0.99902
\end{filecontents}
% ===============================
% ===============================
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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pgfplotstable tabellen

gefragt 20 Jan '16, 16:40

cis
9.6k●103●460●491
Akzeptiert-Rate: 29%

\ifdim tut wunderbar. Allerdings werden Zahlen wie 0.99999 erst nach dem Vergleich auf vier Nachkommastellen gerundet, was dann 1.0000 ergibt.

(20 Jan '16, 17:04) Henri

Eine Antwort:

active answers älteste Antworten neueste Antworten Beliebteste Antworten

Mit

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Code, hier editierbar zum Übersetzen:

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\pgfplotstableset{
  discard if equal/.style = {
    preproc cell content/.code={
      \typeout{##1=#1?}%
      \ifdim##1pt=#1pt
        \pgfkeyssetvalue{/pgfplots/table/@cell content}{}
      \fi
    }
  },
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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findet man schnell heraus, dass beispielsweise 0.99999 mit 1.0. verglichen wird. Das ist dann in der Tat nicht gleich. Wird später allerdings auf vier Nachkommastellen gerundet, dann sind die Zahlen gleich. Also müsste man entweder bereits an dieser Stelle runden oder den Vergleich mit etwas Unschärfe versehen:

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Code, hier editierbar zum Übersetzen:

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\documentclass[paper=a5]{scrbook}
\usepackage[left=1cm, right=1cm]{geometry}
\usepackage{selinput}
\SelectInputMappings{adieresis={ä},  germandbls={ß}}
\usepackage[ngerman]{babel}
\usepackage{pgfplotstable}
\usepackage{amsmath, amssymb, amsfonts}% \binom
\usepackage{colortbl}% \rowcolor, \cellcolor
%\usepackage{multirow}
\usepackage{hhline}
\usepackage{diagbox}  % \diagbox
\usepackage{xcolor, booktabs}
\usepackage{filecontents}
\begin{document}
\setlength\arrayrulewidth{0.905pt} % Um rules deutlich anzuzeigen
\begin{filecontents}{n5.txt}
5  0  0.5905  0.3277  0.2373  0.1681  0.0778  0.0313
5  1  0.9185  0.7373  0.6328  0.5282  0.3370  0.1875
5  2  0.9914  0.9421  0.8965  0.8369  0.6826  0.5000
5  3  0.9995  0.9933  0.9844  0.9692  0.9130  0.8125
5  4  1.0000  0.9997  0.9990  0.9976  0.9898  0.9688
10 0 0.34868    0.10737 0.05631 0.02825 0.00605 0.00098
10 1 0.73610    0.37581 0.24403 0.14931 0.04636 0.01074
10 2 0.92981    0.67780 0.52559 0.38278 0.16729 0.05469
10 3 0.98720    0.87913 0.77588 0.64961 0.38228 0.17188
10 4 0.99837    0.96721 0.92187 0.84973 0.63310 0.37695
10 5 0.99985    0.99363 0.98027 0.95265 0.83376 0.62305
10 6 0.99999    0.99914 0.99649 0.98941 0.94524 0.82813
10 7 1.00000    0.99992 0.99958 0.99841 0.98771 0.94531
10 8 1.00000    1.00000 0.99997 0.99986 0.99832 0.98926
10 9 1.00000    1.00000 1.00000 0.99999 0.99990 0.99902
\end{filecontents}
% ===============================
% ===============================
% Tabelle Summierte Binomial-Verteilung (SumBinVert)
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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alt text

Eine andere Möglichkeit wäre, an der Stelle eine Rundung mit Hilfe von pgfmath durchzuführen. Da mit \pgfround nicht auf eine bestimmte Anzahl an Nachkommastellen, sondern nur auf Integer gerundet werden kann, muss man den Wert entsprechend skalieren. Die Lösung könnte in obigem Fall beispielsweise so aussehen:

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Code, hier editierbar zum Übersetzen:

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\pgfplotstableset{
  discard if equal/.style = {
    preproc cell content/.code={
      \pgfmathparse{ifthenelse(round(##1*10000)==round(#1*10000),0,1)}%
      \ifcase \pgfmathresult
        \pgfkeyssetvalue{/pgfplots/table/@cell content}{}
      \fi
    }
  },
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Dabei wird auch gleich \pgfifthenelse verwendet, um den Vergleich durchzuführen. Sind die Werte gleich, wird \pgfmathresult so 0, sonst 1. Das Ergebnis ist wie in der Abbildung oben. Die genannten Funktionen von pgfmath sind in der pgf-Anleitung dokumentiert (derzeit Kapitel 89).

Last but not least kann man natürlich auch die Funktion zur Festlegung der Nachkommastellen verwenden, die auch pgfplotstable bei der Ausgabe der Zahlen verwendet, also \pgfmathroundto:

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Code, hier editierbar zum Übersetzen:

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\pgfplotstableset{
  discard if equal/.style = {
    preproc cell content/.code={
      \pgfkeys{/pgf/number format/precision=4}%
      \pgfmathroundto{##1}%
      \ifdim \pgfmathresult pt=#1pt
        \pgfkeyssetvalue{/pgfplots/table/@cell content}{}
      \fi
    }
  },
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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oder mit ifthenelse:

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Code, hier editierbar zum Übersetzen:

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\pgfplotstableset{
  discard if equal/.style = {
    preproc cell content/.code={
      \pgfkeys{/pgf/number format/precision=4}%
      \pgfmathroundto{##1}%
      \pgfmathparse{ifthenelse(\pgfmathresult==#1,0,1)}%
      \ifcase \pgfmathresult
        \pgfkeyssetvalue{/pgfplots/table/@cell content}{}
      \fi
    }
  },
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Außerdem liefert pgf auch gleich eine unscharfen Vergleichsoperation für Gleitkommazahlen, die genau den Vergleich durchführen kann, der letztlich auch bereits in meinem ersten Beispiel verwendet wird:

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Code, hier editierbar zum Übersetzen:

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\pgfplotstableset{
  discard if equal/.style = {
    preproc cell content/.code={
      \pgfkeys{/pgf/fpu/rel thresh=5e-5}%
      \pgfmathfloatifapproxequalrel{##1}{#1}{%
        \pgfkeyssetvalue{/pgfplots/table/@cell content}{}
      }{}
    }
  },
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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All das liefert das gleiche Ergebnis wie oben bereits gezeigt. Dokumentiert sind \pgfmathroundto und \pgfmathfloatifapproxequalrel ebenfalls in der pgf-Anleitung, derzeit Kapitel 54.

Permanenter link

beantwortet 20 Jan '16, 17:04

saputello
11.1k●17●43●65
Akzeptiert-Rate: 51%

bearbeitet 21 Jan '16, 10:15

Super. Danke!

(20 Jan '16, 17:21) cis

Mit expl3 kann man eine Zahl leicht auf beliebig viele Nachkommastellen runden. Dazu verwendet man einfach round(x,n), wobei x auf n Stellen gerundet wird.

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Code, hier editierbar zum Übersetzen:

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%\usepackage{xparse}
\ExplSyntaxOn
\NewDocumentCommand \fpcompare { m m }
 {
  \fp_compare:nT { #1 } { #2 }
 }
\ExplSyntaxOff
\pgfplotstableset{
  discard if equal/.style = {
    preproc cell content/.code={
      \fpcompare{round(##1,4) == #1}{%
        \pgfkeyssetvalue{/pgfplots/table/@cell content}{}
      }
    }
  },
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Permanenter link

beantwortet 20 Jan '16, 17:26

Henri
15.7k●13●39●43
Akzeptiert-Rate: 46%

bearbeitet 20 Jan '16, 18:26

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tabellen ×258
pgfplotstable ×39

gestellte Frage: 20 Jan '16, 16:40

Frage wurde gesehen: 7,715 Mal

zuletzt geändert: 21 Jan '16, 10:15

Befehl "discard if equal={1.0}" tut mitunter nicht

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